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bobber205
Aug 13, 2006, 10:48 AM
When should I expect to replace my macbook battery. I would say 2/3 the time I use my machine (on almost all the time) it's from the adapter. But when I use the battery for power, I usually use the machine until the battery is more than 50% gone.

Right now my iStat says me battery has "41 Cycles". How many will/should it last? How much should I expect to replace it?



gauchogolfer
Aug 13, 2006, 11:14 AM
I'm using a 15" powerbook that has gone through 288 cycles and is at 92% of its original capacity after 18 months. You can keep an eye on things with coconut battery if you're worried about it. It's a nice little app. I'd say you've got a lot of life in your battery, yet.

Mord
Aug 13, 2006, 11:27 AM
i've done over 100 cycles and it's still as good as new.

bobber205
Aug 13, 2006, 11:37 AM
41 Cycles and I'm at 99%. Not bad! :D

Clydefrog
Aug 13, 2006, 11:42 AM
288 cycles 98% via coconut battery

bbrosemer
Aug 13, 2006, 11:50 AM
19 cycles 100% capacity

twoodcc
Aug 13, 2006, 11:58 AM
how come mine has only 95% after 3 cycles?

drake
Aug 13, 2006, 06:50 PM
Mine's 94% after five. Man, I'm getting ticked. I never had over 5000mAhs on my Macbook, and everyones seems to be higher. YET, I can get nearly four hours before it dies. Something wrong with the sensor?

coastertux
Aug 13, 2006, 07:24 PM
As long as you do your monthly calibration you should be fine!

JordanNZ
Aug 13, 2006, 07:35 PM
1gHz Ti-Book..

82 percent of the original Capacity.
Original 4200 mAh
Current 3480 mAh

Loadcycles 871 !!
Age of mac 44 months.


Guess I'm doing ok :D

drake
Aug 13, 2006, 08:09 PM
As long as you do your monthly calibration you should be fine!

Doesn't work for me.

twoodcc
Aug 13, 2006, 08:21 PM
Doesn't work for me.

apparently me either:(

JosiahPB
Aug 13, 2006, 08:28 PM
Listen to this peeps. 20 Cycles: 29% 1462 mAh.

Needless to say I have a new MacBook battery in the mail.

furious
Aug 13, 2006, 09:08 PM
20 Cycles: 29% 1462 mAh.

.


hot do you find out the info?

ps i am a n00b when it comes to laptops

twoodcc
Aug 13, 2006, 09:31 PM
hot do you find out the info?

ps i am a n00b when it comes to laptops

download and run an application called "coconutbattery" and it tells you everything

skunk
Jan 6, 2008, 06:15 PM
Mine is down to 75% after 148 cycles and 16 months. Should I be asking questions?

bbergie
Jan 6, 2008, 06:22 PM
1gHz Ti-Book..

82 percent of the original Capacity.
Original 4200 mAh
Current 3480 mAh

Loadcycles 871 !!
Age of mac 44 months.


Guess I'm doing ok :D

My powerbook is at 70 months and well into its second battery. I guess you are doing ok. Go Titanium!

For the record:
Battery health: 76%
Current: 3220 mAh
Original: 4200 mAh
136 loadcycles

mateosaadeo
Jan 6, 2008, 06:39 PM
Mine is down to 75% after 148 cycles and 16 months. Should I be asking questions?

Thats about what mine is at too and I think its just normal heavy battery usage. I get about 3hrs still on the 15" MBP.

hari-bhari
Jan 6, 2008, 07:40 PM
mine is about 5 months old, only 4 cycles (and i use it on battery ALL the time), and i am actually at 5321mAh, more than the original 5200. I think part of it is that almost every time I unplug it, i don't plug it back in until it puts itsself to sleep. and every 2 weeks or so, i disable hibernation with insomniax and let it die completely. make sure that whenever u discharge, let it get as low as you can whenever possible, and when u recharge, charge it up to 100 percent. everytime i do this, the capacity creeps up a bit. I did this with my 5 year old compaq and still am getting 80% life out of the original battery.

khunxhor
Jan 6, 2008, 08:42 PM
As long as you do your monthly calibration you should be fine!

is over-calibration is harmful?

When my battery dies, I plug it in and charge it, use it until the battery dies, and this process goes on forever.....

is this considered "calibrating" my battery? If so, is this bad since I run out of battery every day or two; hence, im calibrating my battery every other day instead of once a month?

Apple says calibrating your battery requires you to leave it without power for 5 hours. Does this mean what I am doing is not harmful to my battery?

bjett92
Jan 6, 2008, 08:46 PM
mine is about 5 months old, only 4 cycles (and i use it on battery ALL the time), and i am actually at 5321mAh, more than the original 5200. I think part of it is that almost every time I unplug it, i don't plug it back in until it puts itsself to sleep. and every 2 weeks or so, i disable hibernation with insomniax and let it die completely. make sure that whenever u discharge, let it get as low as you can whenever possible, and when u recharge, charge it up to 100 percent. everytime i do this, the capacity creeps up a bit. I did this with my 5 year old compaq and still am getting 80% life out of the original battery.

According to the pic you attached, your charger is not connected yet your battery is charging. How is this possible?

Billy Bob
Jan 6, 2008, 09:49 PM
My battery has done 150 cycles and is at 84%

tip
Jan 6, 2008, 09:58 PM
Coconut battery produces incorrect stats in Leopard.

Better to use Battery Health Monitor, or simply go to System Profiler -> Hardware -> Power.

According to Apple, a well-maintained battery should retain 80% capacity at 300 cycles (it's noted in a document on the Apple support site).


A few weeks ago, my battery was reporting 54% capacity at 300 cycles exactly. Went to an Apple store, and got a new one without problem (they used System Profiler). Heck, they didn't take my serial # or other information.

Hope this info helps.

hulugu
Feb 22, 2008, 12:20 AM
Mine is down to 75% after 148 cycles and 16 months. Should I be asking questions?

You know, mine seems to be steadily declining. iStat says 70% health with 249 cycles after 12 months. 3862mAh.

WTF?

I'm getting a new battery.

EDIT: After reading tip's comment above, I'm more convinced. BTW, iStat's information matches the data from System Profiler; the data from Coconut is wonky, according to it my battery has experienced only 7 load-cycles.

Bobioden
Feb 22, 2008, 12:43 AM
65 cycles 3 months, 106% health

Original capacity 5020 mAh 100%
Current capacity 5345 mAh 106%

Battery Health Monitor

secretpact
Feb 22, 2008, 12:50 AM
Here's me (had my blackbook since May 2007):

75 cycles, 100% capacity.


How long is apple going to be selling brand new batteries for the blackbook? I plan on keeping this laptop for a long time, and I may need a new battery a few years from now.

heatmiser
Feb 22, 2008, 01:04 AM
How long is apple going to be selling brand new batteries for the blackbook? I plan on keeping this laptop for a long time, and I may need a new battery a few years from now.

They still sell G4 Powerbook/iBook batteries, so I'd say at least two years after the model goes out of production.

sidharth80
Feb 22, 2008, 01:04 AM
Here are my macbook stats -
Cycles - 50, health - 100%

Justinerator
Feb 22, 2008, 01:27 AM
Figured this might help... (http://www.apple.com/batteries/notebooks.html)

I got my mbp december 06. It has 142 cycles and it is at 93%... I would say that's pretty good :D

hulugu
Feb 22, 2008, 10:29 AM
65 cycles 3 months, 106% health

Original capacity 5020 mAh 100%
Current capacity 5345 mAh 106%

Battery Health Monitor

Well, that can't be right.

Bobioden
Feb 22, 2008, 11:15 AM
Well, that can't be right.

Well, that is what is says. I use it every day on Battery power. When it runs down I plug it in. I have been doing this since I got it the end of November. I can get 4 1/2 hours out of each charge.

http://i20.photobucket.com/albums/b243/bobioden/Snapshot2008-02-2210-28-22.jpg

hulugu
Feb 22, 2008, 11:59 AM
Well, that is what is says. I use it every day on Battery power. When it runs down I plug it in. I have been doing this since I got it the end of November. I can get 4 1/2 hours out of each charge.
...

I'm just saying a battery can't be more than at 100% capacity or health. There's a miscalculation in there somewhere.

thejadedmonkey
Feb 22, 2008, 12:09 PM
I'm just saying a battery can't be more than at 100% capacity or health. There's a miscalculation in there somewhere.

If it's designed for 5,300mAh and it can deliver 5,350, it's delivering over 100%

hulugu
Feb 22, 2008, 12:14 PM
If it's designed for 5,300mAh and it can deliver 5,350, it's delivering over 100%

But, wouldn't that mean it's overcharging? Thus, something is not wrong, but odd?

skyrider007
Feb 22, 2008, 01:13 PM
My battery health is 94% at 27 cycles, is this bad for a 8-month old MBP?

AndyK
Feb 22, 2008, 01:45 PM
http://www.andrewaking.co.uk/pics/charge.png

skyrider007
Feb 22, 2008, 01:51 PM
http://www.andrewaking.co.uk/pics/charge.png

Andy, how do you do that?!

AndyK
Feb 22, 2008, 02:07 PM
Andy, how do you do that?!

Do what?

skyrider007
Feb 22, 2008, 02:12 PM
Do what?

100% health

AndyK
Feb 22, 2008, 02:13 PM
I've only had it a month.

skyrider007
Feb 22, 2008, 02:56 PM
I've only had it a month.

That explains it :)

AndyK
Feb 22, 2008, 03:12 PM
I should probably have pointed that out when I posted the screenshot. :rolleyes:

SFStateStudent
Feb 22, 2008, 03:20 PM
bought MacBook 2.16 the end of August '07, though there are some discrepancies between, both pretty accurate information. Just not sure the difference between Coconut's Battery-Loadcycles and Cycle Count in my System Preferences:

Battery Information:

Model Information:
Serial Number: DP-ASMB016-36f0-31c2
Manufacturer: DP
Device name: ASMB016
Pack Lot Code: 0002
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 4755
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4787
Health Information:
Cycle count: 28
Battery health: Good
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12551

Coconut Battery 2.5.1
Current Battery Charge: 4755 mAh
Max Battery Charge: 4784 mAh
99%
Current Battery Capacity: 4787 mAh
Original Battery Capacity: 5200 mAh
92%
Additional Info
Battery-Loadcycles: 5
Age of Mac: 7 Months
Charger connected: No
Battery is Charging: No
:cool:

MacDann
Feb 22, 2008, 03:25 PM
If I recall from the battery recall a year ago, Apple considers 300 cycles to be typical for the life of a notebook battery. I think that was one of the criteria they were using to judge whether or not they would replace your battery of it had failed prematurely.

MacDann

TJones
Feb 22, 2008, 03:32 PM
Mine went from 100% to 96% after doing the calibration and it has less than 40 cycles on it :(

MacDann
Feb 22, 2008, 03:36 PM
Mine went from 100% to 96% after doing the calibration and it has less than 40 cycles on it :(

And they will - after it's charged for a day or two and cycled again it will come up somewhat. Mine always do.

Remain calm - don't panic. :eek:

MacDann

ziekke
Mar 26, 2008, 05:29 PM
But, wouldn't that mean it's overcharging? Thus, something is not wrong, but odd?

It just means the battery is rated for 5200mAh.. when the battery is produced it likely charges up more than 5200 mAh.

It's like a CPU, when they are made they are made to exceed the rated clock speed, that way the CPU will run stable at the clock speed they want to sell it at (this is what makes overclocking mostly possible).

So just because the battery says it's 5200mAh just means that when it ran off the line, it's capacity met or exceeded it, so it could be sold as such.

hulugu
Mar 26, 2008, 05:35 PM
It just means the battery is rated for 5200mAh.. when the battery is produced it likely charges up more than 5200 mAh.

It's like a CPU, when they are made they are made to exceed the rated clock speed, that way the CPU will run stable at the clock speed they want to sell it at (this is what makes overclocking mostly possible).

So just because the battery says it's 5200mAh just means that when it ran off the line, it's capacity met or exceeded it, so it could be sold as such.

So, odd as in unusual. ;)

e12a
Mar 26, 2008, 05:49 PM
"Battery Lifespan

A properly maintained Apple notebook battery is designed to retain up to 80% of its original capacity at 300 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

http://www.apple.com/batteries/notebooks.html

i got my battery replaced under warranty on my old Macbook Pro. After a year and 68 cycles, i had 34% health and no more than an hour of working time.

dops7107
Mar 26, 2008, 05:55 PM
Mine's only two weeks old and it's on 98% health already (6 cycles). Come to think of it... it never showed 100% :o Oh well, it hardly matters, it still lasts a good time.

super98111
Mar 26, 2008, 05:57 PM
17 cycle, 99%

JEB229
Mar 26, 2008, 06:17 PM
My old battery had 200 some cycles and 20% health. I just got my new battery acouple weeks ago and its saying 94% health at 15 cycles.

UltraNEO*
Mar 26, 2008, 06:56 PM
Hmm... I'm sure this ain't healthy, originally it was 5560mA now...

http://img.skitch.com/20080326-f2dmik8m5t1h439jbegr3un743.jpg

http://img.skitch.com/20080326-dfcyne7cnwp8emxp6c8kqcdx8k.jpg


How long is apple going to be selling brand new batteries for the blackbook? I plan on keeping this laptop for a long time, and I may need a new battery a few years from now.

Well.. Your can still buy new batteries for the PowerBook Pismo, though you can buy then in store, so how many years is that? And if and when Apple stops making then, there's always 3rd party ;-)

citisin
May 6, 2008, 01:41 PM
i've done 176 cycles and at 86% health on an 11 month old MBP. should i be asking for a new battery?

Mord
May 6, 2008, 01:49 PM
I win.

e12a
May 6, 2008, 01:52 PM
i've done 176 cycles and at 86% health on an 11 month old MBP. should i be asking for a new battery?

no.

tringo
May 6, 2008, 01:52 PM
My battery has done 150 cycles and is at 84%

Interesting. Mine is 85% after 106 cycles.

bartelby
May 6, 2008, 01:53 PM
I win.

:eek:
How the hell have you managed that?

Mord
May 6, 2008, 02:08 PM
I'm on it most of the day, I couldn't live without it. I usually cradle it in one arm and operate it with the other while I'm doing stuff.

Eluzion
May 6, 2008, 02:50 PM
So I have 116 cycles, 10 month old Macbook Pro according to coconut. When my battery is less than 50% charged the health is 57%. At full charge it's usually about 70%. I was just using my MBP on battery when it was at 25% and suddenly jumped down to 10%.

I'm guessing this battery is toast. What's Apple's battery replacement policy? I don't have Apple Care. Will they just swap it out in-store or do I have to go through some ridiculous "we need to check your computer in for a diagnostic" deal and be a week or two without my computer. ;)

Eluzion
May 6, 2008, 10:52 PM
Well I just got it replaced. 99% health with 1 cycle. Lets hope this one lasts. ;P

davidwarren
May 6, 2008, 11:04 PM
I'm on it most of the day, I couldn't live without it. I usually cradle it in one arm and operate it with the other while I'm doing stuff.

do you run it all the way out before recharging? That is what I have been doing and I have close to 300 cycles and 100% health.

mahonmeister
May 7, 2008, 01:05 PM
Coconut battery produces incorrect stats in Leopard.

Better to use Battery Health Monitor, or simply go to System Profiler -> Hardware -> Power.

According to Apple, a well-maintained battery should retain 80% capacity at 300 cycles (it's noted in a document on the Apple support site).


A few weeks ago, my battery was reporting 54% capacity at 300 cycles exactly. Went to an Apple store, and got a new one without problem (they used System Profiler). Heck, they didn't take my serial # or other information.

Hope this info helps.Wow. That's quite generous of them to replace it like that.

Mord
May 7, 2008, 01:07 PM
do you run it all the way out before recharging? That is what I have been doing and I have close to 300 cycles and 100% health.

Sometimes, sometimes not, it's certainly not uncommon for me to empty the thing.

aquajet
May 7, 2008, 03:04 PM
I win.

People worry about their precious batteries far too much. Just use the damn things. That's what they're designed for.

zephead
May 7, 2008, 03:16 PM
A note to all of you using coconutBattery on your 13" MacBooks running Leopard: coconutBattery seems to report the MacBook's battery capacity at 5020 mAh, when really it's 5200 mAh. I noticed that it changed when I upgraded to Leopard. You can just enter 5200 in the custom capacity in the cB prefs and it'll work just fine.

Since mine's not dead yet, I imagine these things last a really long time. :)

http://img394.imageshack.us/img394/9157/picture25wa6.jpg

skye12
May 7, 2008, 03:27 PM
My 5 year old ibook original battery is going strong....have no idea of
how many cycles.

Used mostly plugged in, but I estimate it would still give me 1.5-2 hrs.

Mord
May 7, 2008, 03:27 PM
People worry about their precious batteries far too much. Just use the damn things. That's what they're designed for.

Quite, considering the cost of the machine it's well worth it to use the damn thing as much as you can wherever you can.

illest-one
May 7, 2008, 06:38 PM
2.4 ghz mbp

90% health @ 128 via istat pro

RaceTripper
May 7, 2008, 07:02 PM
I'm at 91% with 199 cycles.

My wife's 15" MBP was down to 63% after about 100 cycles. A Genius gave me a warranty replacement.

asmallchild
May 7, 2008, 07:05 PM
98% after 7 cycles

(2 calibrations)

illest-one
May 7, 2008, 08:45 PM
Hey Race,

this is off topic but just curious as to how it is done. how did you have this comment underneath your every post?
"17" MBP, 2.33 GHz, 4GB, Scorpio 320; 23" ACD; iPhone
Racing is life! Anything that happens before or after, is just waiting! -- Steve McQueen"

RaceTripper
May 7, 2008, 08:54 PM
Hey Race,

this is off topic but just curious as to how it is done. how did you have this comment underneath your every post?
"17" MBP, 2.33 GHz, 4GB, Scorpio 320; 23" ACD; iPhone
Racing is life! Anything that happens before or after, is just waiting! -- Steve McQueen"

Go to User CP at the top of any forum page. Under Settings and Options, click on Edit Signature.

ruftytufty
May 8, 2008, 06:03 PM
Before you test what your battery's capacity is, it's important to calibrate it properly:

http://docs.info.apple.com/article.html?artnum=86284

On my MBP (10 months old, 126 cycles), before calibration, Battery Health Monitor (also Coconut Battery) showed as low as 68%, even though I occasionally run it till the battery is almost dead.

After calibration, including disabling hibernation using Insomniax, and letting it sleep about 8 hours after it put itself to sleep (didn't have time to wait for it to shut down completely), it's showing 86% capacity - below on-track for Apple's expected 80% at 300 cycles.

mpcoady
May 8, 2008, 07:39 PM
95%, 202 cycles.

PowerBook 36 months old. 2nd battery (10 months old).

dmmcintyre3
Jun 7, 2008, 08:54 PM
the battery is older than my PowerBook G4 1.67

rinifer
Sep 15, 2008, 02:44 PM
My Macbook is at 98% with 701 cycles. I've had it for about a year and a half.

daneoni
Sep 15, 2008, 03:03 PM
502 cycles 87% (PB G4 btw)

bmwpowere36m3
Sep 15, 2008, 11:29 PM
Not bad after one year of use...

MowingDevil
Sep 15, 2008, 11:35 PM
My Macbook is at 98% with 701 cycles. I've had it for about a year and a half.

Holy crap, thats between 1 & 2 cyclers per DAY! :eek:

thegrifman
Sep 16, 2008, 11:01 AM
My battery is at about 55% with about 45 cycles after a year and a half. I know batteries are normally considered wear and tear, but would Apple cover this under Applecare since it seems like all of you are getting much better life out of yours?

creator2456
Sep 16, 2008, 12:32 PM
My battery is at about 55% with about 45 cycles after a year and a half. I know batteries are normally considered wear and tear, but would Apple cover this under Applecare since it seems like all of you are getting much better life out of yours?

Yes. Apple states that a battery should last ~300 cycles while holding ~80% health. You are well below those marks.

beisball28
Sep 16, 2008, 07:09 PM
Just making sure, but if i have had my laptop for a while now and i decided to install coconutbattery on it NOW, will it have the current info on my battery?

I guess my question is, does it keep a running tally as you charge/recharge it, or is the battery info somewhere in the system where coconut battery retrieves it.

Thanks

Akira1980
Sep 16, 2008, 07:17 PM
271 Cycles
31% Health

:(

rinifer
Sep 16, 2008, 08:19 PM
Holy crap, thats between 1 & 2 cyclers per DAY! :eek:

Haha, yeahhh. It's my only computer, and as a college student, am constantly on the move. It's definitely getting its workout.

creator2456
Sep 16, 2008, 10:10 PM
Just making sure, but if i have had my laptop for a while now and i decided to install coconutbattery on it NOW, will it have the current info on my battery?

I guess my question is, does it keep a running tally as you charge/recharge it, or is the battery info somewhere in the system where coconut battery retrieves it.

Thanks

The info is in System Profiler, coconut doesn't create it.

Mord
Sep 17, 2008, 01:43 AM
Holy crap, thats between 1 & 2 cyclers per DAY! :eek:

that's nothing, I've done 1042 cycles in about that time, similar health.

allmIne
Sep 17, 2008, 12:29 PM
Interesting thread.

My rev A MBP is fine now, apart from the obvious heat issues and slightly pants screen, but is on its third AC cable and second battery.

The battery started to last around 30mins between charges, and one day died. By chance, I was on the apple site, and saw a battery recall warning. Checked, and sure enough mine was one of the affected. This was well over a year after I'd bought it. Got a new one from Apple a few days later, thank goodness.

andy.

Edit:

http://img253.imageshack.us/img253/8710/coconutscrnkj2.png

I'd be better off with a desktop, obv.

thegrifman
Sep 17, 2008, 07:43 PM
Yes. Apple states that a battery should last ~300 cycles while holding ~80% health. You are well below those marks.

Sweet, thanks! :)

gellfling
Sep 18, 2008, 02:59 AM
Hey All
today is the first time that i have noticed my macbook not charging till the light goes green ;(

I must be doing something right as Coconut tells me on my Macbook with 10.4.9

22 months old
Load cycles 429
Health 96%

Hope fully the lack of green light wont be an omen :(

Cheers

Gellfling

demonguard
Sep 18, 2008, 08:41 PM
I'd say it will last a good 600 considering the rate mine's going at

I have a horrible habit of unplugging it as soon as the charge is done because I feel tethered by the cord :rolleyes:
http://img.skitch.com/20080919-qcaakdi9ibruwyjxcp4bjcj3it.png

MowingDevil
Sep 18, 2008, 11:56 PM
Hey demonguard what app is that you're using to check the battery status?
Just wondering what the best one to get is.

psingh01
Jan 9, 2009, 11:28 PM
From system profiler, currently have my MBP 17" for 21 months.

Battery Information:

Model Information:
Serial Number: SMP-ASMB014-3628-aa2
Manufacturer: SMP
Device name: ASMB014
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0202
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 2722
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5101
Health Information:
Cycle count: 601
Condition: Good
Battery Installed: Yes
Amperage (mA): 3251
Voltage (mV): 11756

scoobierules
Jan 9, 2009, 11:37 PM
I recently moved from an Imac 3.06 to the new MBP 2.4. I upgraded the ram to 4gb and replaced the hard drive with a 500gb WD. Since I upgraded, I have had issues with errors on the hard drive, I constantly get the beach ball and it seems to be more sluggish. I know that I dropped in speed. But, I always thought the MBP were made for more demanding work and the one I have seems to only handle the basics.

By the way, I have tested the entire system with tech tool pro and the hardware test that Apple uses( they left in my old machine). No issues according to the test. But, it just does not seem right. Any suggestions?

I have used Mac for about 7 years and while it beats the hell out of windows, I want my MBP to do more.

scoobierules
Jan 9, 2009, 11:47 PM
Posted in the wrong forum. Sorry!

RaceTripper
Jan 10, 2009, 10:24 AM
My battery was at 79% after 325+ load cycles when it suddenly started expanding apart. Apple replaced it.

nick9191
Jan 10, 2009, 10:51 AM
92% health, 675 cycles, bought in January 08.

jmchen3
Jan 10, 2009, 11:39 AM
My Macbook is at 98% with 701 cycles. I've had it for about a year and a half.

wow
i only i have 324 cycles and my macbook is at 89%
got my last year jan 08

daneoni
Jan 10, 2009, 05:29 PM
Cant really say...my MBP is not that old but i did have a 12" PB and it had done 502 cycles and was at 87% health and still gave 3hr of battery life

Currently my MBP Classic has the following stats

zsuzanna
Jan 10, 2009, 07:04 PM
I bought my mac pro about a year and a half ago. I'd like an opinion on whether or not my battery function is normal, or if i should inquire about receiving a battery replacement from apple. Im also under their extended warranty (3 years).

Health: 57%
Cycles: 323
Fully Charged: 97%

Any advice would be great
Thanks!

daneoni
Jan 10, 2009, 09:03 PM
I bought my mac pro about a year and a half ago. I'd like an opinion on whether or not my battery function is normal, or if i should inquire about receiving a battery replacement from apple. Im also under their extended warranty (3 years).

Health: 57%
Cycles: 323
Fully Charged: 97%

Any advice would be great
Thanks!

You need a replacement

zsuzanna
Jan 11, 2009, 12:38 AM
You need a replacement

would this be covered under my apple care plan? or would the replacement come out of my own pocket?

sorry for all the questions, id just like to know roughly before i speak to one of the apple guys.

creator2456
Jan 11, 2009, 01:59 AM
would this be covered under my apple care plan? or would the replacement come out of my own pocket?

sorry for all the questions, id just like to know roughly before i speak to one of the apple guys.

I would take it to an Apple store or call Applecare asap. They are pretty good about free batteries if you have less than 300 cycles with lower than 80% health.

You are lower than 80%, but a bit over 300. Worth a shot at a free battery.

zsuzanna
Jan 11, 2009, 02:08 AM
I would take it to an Apple store or call Applecare asap. They are pretty good about free batteries if you have less than 300 cycles with lower than 80% health.

You are lower than 80%, but a bit over 300. Worth a shot at a free battery.

thanks a ton guys:)
appreciated.

brentsg
Jan 11, 2009, 10:35 AM
For grins I checked my Powerbook G4 12" 1.33GHz machine. I have ignored Apple's recommendation to fully discharge the battery monthly and it's "docked" 99% of the time as a kitchen netbook.

The battery on the 4-5 year old machine is at 93% health after 75 cycles.

psingh01
Jan 12, 2009, 12:02 PM
From system profiler, currently have my MBP 17" for 21 months.

Battery Information:

Charge remaining (mAh): 2722
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5101
Health Information:
Cycle count: 601
Condition: Good
Battery Installed: Yes
Amperage (mA): 3251
Voltage (mV): 11756

:mad: 2 days and 1 cycle count later and Full charge capacity is down 3000mAh! According to Coconut Battery it's down to 34% of the original charge. I've had this MBP for 21 months now...I'm guessing this is no longer within the lifetime of the battery??

Battery Information:

Charge remaining (mAh): 2171
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 2171
Health Information:
Cycle count: 602
Condition: Good
Battery Installed: Yes
Amperage (mA): 150
Voltage (mV): 12599

antbikerjl
Jan 12, 2009, 11:23 PM
Wow... I have had my MacBook Pro for not even a week and my health has gone down as well as my full charge capabilities! This does not seem normal compared to what has been reported on this particular topic. 5 charges and down 4% (based on istat pro), and down almost 1000 mAh capacity (if the full capacity is indeed 5500mAh)... I did calibrate this MBP based on Apple's recommendations also... What shall I do?

Charge Information:
Charge remaining (mAh): 4356
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4495
Health Information:
Cycle count: 5
Condition: Good
Battery Installed: Yes
Amperage (mA): -1281
Voltage (mV): 12256

echo3uk
Jan 13, 2009, 06:20 AM
... and down almost 1000 mAh capacity (if the full capacity is indeed 5500mAh)... I did calibrate this MBP based on Apple's recommendations also... What shall I do?
...

I think the new Unibody 15 Macs have lower capacity batteries (4600mAh) but I'd like someone to confirm this if poss.

Here are my specs;

Charge Information:
Charge remaining (mAh): 2975
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 4641
Health Information:
Cycle count: 29
Condition: Good
Battery Installed: Yes
Amperage (mA): 1498
Voltage (mV): 11974

However I usually re-charge once the battery gets below 20-40 minutes. I think I will have to perform a full discharge to see what happens.

This looks good if the original capacity was 4600, but not if it should be over 5000!

tildesley
Jan 18, 2009, 08:31 AM
hi guys,

ive had my macbook 11 days and my macbook is saying its had 7 cycles.

what actually is a cycle? :confused:
i thought it was putting it on charge when the battery is near dead. but i have put it on around 75% but it is still counting it as a cycle.

my concern is that it i can easily use the full battery every day, or put it on charge every day, but i will end up with 300 cycles in a year if that carries on. :eek:

any advice appreciated, thanks

vr4playa
Jan 18, 2009, 08:52 AM
would this be covered under my apple care plan? or would the replacement come out of my own pocket?

did you try the applecare route yet?

I would take it to an Apple store or call Applecare asap. They are pretty good about free batteries if you have less than 300 cycles with lower than 80% health.

You are lower than 80%, but a bit over 300. Worth a shot at a free battery.

So if it's under 300 cycles, under 80% and still under Applecare they'll take care of it?

If so, here's my story, kinda weird b/c I just checked Coconut battery today and it seems my battery has come back from the dead :confused:

Here's what the stats were just 1 week ago when I posted for the first time in a few months and found out about CB-

long time since I posted, but here's the stats from mine(sounds like my batt is dead)...

Maximum Battery Charge- 51 mAh

Current Battery Capacity- 51 mAh
Original Battery Capacity- 5020 mAh

Battery-Loadcycles- 211
Age of you Mac- 28 months



So about 10% w/ 211 cycles, now today it says:

Current Battery Charge: 3969 mAh
Maximum Battery Charge- 4141 mAh

Current Battery Capacity- 4141 mAh
Original Battery Capacity- 5020 mAh

Battery-Loadcycles- 211
Age of you Mac- 29 months

Which translates to 82% and still 211 cycles, not quite the <80% to get it covered by the AppleCare, but it might still be worth checking out as I need to have the MagSafe adapter looked at b/c the LED has been on and off and the stains on the trackpad/handrest are covered as well right?(it's a 1g from 09/06- under AppleCare until 09/09)

creator2456
Jan 18, 2009, 11:42 AM
hi guys,

ive had my macbook 11 days and my macbook is saying its had 7 cycles.

what actually is a cycle? :confused:
i thought it was putting it on charge when the battery is near dead. but i have put it on around 75% but it is still counting it as a cycle.

my concern is that it i can easily use the full battery every day, or put it on charge every day, but i will end up with 300 cycles in a year if that carries on. :eek:

any advice appreciated, thanks

Here: Apple Support Page found with Google search for "battery cycle" (http://support.apple.com/kb/HT1519)

A charge cycle means using all of the battery’s power, but that doesn’t necessarily mean a single charge. For instance, you could use your notebook for an hour or more one day, using half its power, and then recharge it fully. If you did the same thing the next day, it would count as one charge cycle, not two, so you may take several days to complete a cycle.

tildesley
Jan 18, 2009, 11:44 AM
Here: Apple Support Page found with Google search for "battery cycle" (http://support.apple.com/kb/HT1519)

thanks

balinmar
Jan 19, 2009, 04:11 PM
darn...im at 189 cycles and only 46%...is this normal?? its only one year old.

tecknical
Jan 19, 2009, 04:22 PM
i guess mine is going normal so far...i guess

creator2456
Jan 19, 2009, 05:16 PM
darn...im at 189 cycles and only 46%...is this normal?? its only one year old.

No.

i guess mine is going normal so far...i guess

Yes.

vr4playa
Jan 19, 2009, 10:43 PM
so after talking to an Apple rep last night he told me to calibrate the battery, after going through the process it's now at a current capacity of 1813mAh(36%) and to further complicate things he said that they'll only replace it if it's OVER 80% :confused:

I thought the point of a defective battery is that it's under-charged at full capacity vs. adequately charged.

demonguard- how'd you get the screen-shot?

jpvaz
Jan 20, 2009, 04:07 AM
Beat this if you can!!!!

My MacBook Pro 15" after 6 battery calibrations made over 3 weeks:

http://gallery.me.com/jpmvaz/100185/Bat%2004/web.png?ver=12323879170001

angelxo
Jan 30, 2009, 01:52 AM
so i know nothing about what my battery should be.
Ive had my black macbook since june 2007 and here are the stats

Full Charge Capacity (mAh): 5160
Remaining Capacity (mAh): 5160
Amperage (mA): 130
Voltage (mV): 12591
Cycle Count: 327

and according to coconut battery..
current battery charge 5160 mah
maximum battery charge 5160 mah
100%

current battery capacity 5160 mah
original battery capacity 5020
100%
age of mac 21 months
battery loadcycles 327

will i need a new battery soon?? Is this bad??

thnx everyone!!!!

creator2456
Jan 30, 2009, 03:01 AM
so i know nothing about what my battery should be.
Ive had my black macbook since june 2007 and here are the stats

Full Charge Capacity (mAh): 5160
Remaining Capacity (mAh): 5160
Amperage (mA): 130
Voltage (mV): 12591
Cycle Count: 327

and according to coconut battery..
current battery charge 5160 mah
maximum battery charge 5160 mah
100%

current battery capacity 5160 mah
original battery capacity 5020
100%
age of mac 21 months
battery loadcycles 327

will i need a new battery soon?? Is this bad??

thnx everyone!!!!

Only thing bad is that you have some sort of super-battery going by the stats. Cherish it. Make it dinner. Build a shrine to it.

angelxo
Feb 9, 2009, 02:03 AM
Only thing bad is that you have some sort of super-battery going by the stats.

Really?!?! I hope so:D thanks!

UltraNEO*
Feb 9, 2009, 02:17 AM
Beat this if you can!!!!

My MacBook Pro 15" after 6 battery calibrations made over 3 weeks:

http://gallery.me.com/jpmvaz/100185/Bat%2004/web.png?ver=12323879170001

ROFL!!
Talk about a high capacity!! :rolleyes:

itickings
Feb 10, 2009, 10:57 AM
92% health, 675 cycles, bought in January 08.

Bought mine in January 08 too, but quite different stats. Just out of warranty the battery went from great capacity to refusing to charge at all. I'd expected the battery to last more than 15 cycles...


Battery Information:
Charge Information:
Charge remaining (mAh): 0
Fully charged: No
Charging: No
Full charge capacity (mAh): 0
Health Information:
Cycle count: 15
Condition: Check battery
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 6889

AC Charger Information:

Connected: Yes
Charging: No

fleali88
Feb 10, 2009, 11:03 AM
black macbook 2.0ghz core 2 duo 3 gb of ram 250gb hdd
478 cycles in 2 years 95%, my original battery. I guess it was made on a tuesday. lol

forwarddrew
Feb 10, 2009, 11:16 AM
I don't think my coconut battery is working right.

http://i42.tinypic.com/2zfnwn8.png

jlwillia
Feb 10, 2009, 11:21 AM
Black Macbook. 2.2 GHz Core 2 Duo, 4 GB RAM, 160 GB HDD.
Almost exactly 1 year old, 314 cycles, 98% health.

apunkrockmonk
Feb 10, 2009, 11:24 AM
Apple replaced my logic board at one point and it doesn't have a serial number.... thats why my age is messed up.

(White MacBook purchased 11/2006)

http://i109.photobucket.com/albums/n63/apunkrockmonk/cocobatt.jpg

mattcleary
Feb 11, 2009, 10:51 PM
http://farm4.static.flickr.com/3329/3272953231_221cb9a463.jpg?v=0

I'm about to buy a new battery, unless someone tells me to hit up apple customer care? Seems like it's fallen off a cliff in the last 2 months... :(

HarleyMan
Feb 11, 2009, 11:33 PM
Two questions arise for me,

1 What is that monthly calibration that someone mentioned above?

2 I read that it is not that good for a battery to run the ac adapter all the time without disconnecting the adapter, running off the battery, and cycling it down. Opinions, Experiences?


Thanks

enklined
Feb 12, 2009, 01:02 AM
Wow, I just got owned.

Battery Information:

Model Information:
Serial Number: Sony-ASMB012-3727-9ccb
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0003
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 4189
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4219
Health Information:
Cycle count: 61
Condition: Check battery
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12431

17 Month old MBP with 61 cycles running at 75% health according to iStat and Coconutbattery.

I just read the apple article (http://www.apple.com/batteries/notebooks.html) on batteries, and they suggest NOT to leave your laptop plugged in! I leave mine plugged in 24/7...SINCE SEPT 07!

DAMN!

Well, what do I do now? Drain it till it dies, then fully charge it or something? I don't really get the monthly maintenance you guys are talking about (I know its sorta explained in Apples article), is that it?

John.B
Feb 12, 2009, 08:51 AM
Well, what do I do now? Drain it till it dies, then fully charge it or something? I don't really get the monthly maintenance you guys are talking about (I know its sorta explained in Apples article), is that it?

Calibrating your computer's battery for best performance (http://support.apple.com/kb/HT1490) (support.apple.com)

PowerBook G4 (15-inch Double-Layer SD), MacBook (all models), MacBook Pro (all models), MacBook Pro (17-inch) (all models) and MacBook Air

The battery calibration for the PowerBook G4 (15-inch Double-Layer SD) and any model of MacBook or MacBook Pro has been updated because of a new battery released with this computer. With these computers, follow these steps to calibrate your battery:

1. Plug in the power adapter and fully charge your PowerBook's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged.
2. Allow the battery to rest in the fully charged state for at least two hours. You may use your computer during this time as long as the adapter is plugged in.
3. Disconnect the power adapter with the computer still on and start running the computer off battery power. You may use your computer during this time. When your battery gets low, you will see the low battery warning dialog on the screen.
4. Continue to keep your computer on until it goes to sleep. Save all your work and close all applications when the battery gets very low, before the computer goes to sleep.
5. Turn off the computer or allow it to sleep for five hours or more.
6. Connect the power adapter and leave it connected until the battery is fully charged again.

Tip: When the battery reaches "empty", the computer is forced into sleep mode. The battery actually keeps back a reserve beyond "empty", to maintain the computer in sleep for a period of time. Once the battery is truly exhausted, the computer is forced to shut down. At this point, with the safe sleep function introduced in the PowerBook G4 (15-inch Double-Layer SD) computers, the computer's memory contents have been saved to the hard drive. When power is restored, the computer returns itself to its pre-sleep state using the safe sleep image on the hard drive.

It'd be interesting to see what coconutBattery reports after your battery has been recalibrated.

There is also some worthwhile reading in the links provided in post #2 of this thread (http://discussions.apple.com/thread.jspa?threadID=1775022&tstart=0). (discussions.apple.com)

enklined
Feb 14, 2009, 02:25 PM
After the mainteneince, coconutBattery and iStat report me at 77% after 66 cycles - a 2% increase...lame.

Gonna contact AC and see if they will hook me up with a new battery.

johnsy
Feb 15, 2009, 09:20 AM
my battery was never 100, even when I unpacked. Right now it has 63 cycles and is at 93% 5166mAh

john2006wright
Feb 15, 2009, 09:46 AM
error. please delete.

Nedturskakao
Feb 15, 2009, 04:54 PM
My battery status:
Now: 4.608 mAh
Original 4.600 mAh
125 cycles
4 months old

Pretty happy with that :)

I have a UMBP

enklined
Feb 23, 2009, 08:47 PM
Just to follow-up: I ended up going into an Apple Sotre - they looked at it for about a minute, then gave me a new battery right then and there.

MacBandit
Mar 21, 2009, 01:24 AM
This is most definitely exceptional but proof what good house keeping can do. 700 cycles and 29 months and still 93%.

dompan
Apr 4, 2009, 05:06 PM
Pretty good I guess ;P

uiop.
Apr 4, 2009, 05:46 PM
This is most definitely exceptional but proof what good house keeping can do. 700 cycles and 29 months and still 93%.

700 cycles!?

MacBandit
Apr 4, 2009, 09:07 PM
700 cycles!?

As of today 713 cycles. It's a first gen Core2Duo 2Ghz MacBook. I bought it October 2 1/2 years ago.

phooi
Apr 5, 2009, 05:38 AM
As of today 713 cycles. It's a first gen Core2Duo 2Ghz MacBook. I bought it October 2 1/2 years ago.

How did you get that? Luck or do you have a routine that you keep?

Thanks!

MacBandit
Apr 5, 2009, 12:01 PM
How did you get that? Luck or do you have a routine that you keep?

Thanks!

Probably a bit of luck. As for a routine. I typically take it off the charger each day then use it until it dies and then plug it back in. This is nearly a daily occurrence so maybe you need to run them down regularly not just once and a while. The rest of the time it sits open plugged in running the Folding@Home project. It doesn't fold when it's on battery power however.

pdxflint
Apr 5, 2009, 02:36 PM
Wow, I just got owned.

Battery Information:

Model Information:
Serial Number: Sony-ASMB012-3727-9ccb
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0003
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 4189
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4219
Health Information:
Cycle count: 61
Condition: Check battery
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12431

17 Month old MBP with 61 cycles running at 75% health according to iStat and Coconutbattery.


My battery stats are nearly identical to yours. Mine's a 12 month old MBP with 112 cycles, 75% health. I do run it on battery a couple of times a week, and do calibrate it every couple of months or so.
Battery Information:

Model Information:
Serial Number: Sony-ASMB012-3831-7593
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 4172
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 4223
Health Information:
Cycle count: 112
Condition: Check battery
Battery Installed: Yes
Amperage (mA): -1253
Voltage (mV): 12253

TheRogue
Apr 5, 2009, 02:41 PM
This is most definitely exceptional but proof what good house keeping can do. 700 cycles and 29 months and still 93%.
http://att.macrumors.com/attachment.php?attachmentid=165408&stc=1&thumb=1&d=1238704225
Even better housekeeping :)

So pleased the battery is holding up. 2,1 Black Macbook.

iphonematt
Apr 5, 2009, 03:03 PM
My MBP battery lasted 57 cycles (9 months) until it decided not to hold a charge and Apple replaced it.

askengi
Apr 20, 2009, 06:53 PM
Everytime I check my battery stats via the system profiler, it keeps giving me different numbers. Is this normal??

MacBandit
Apr 20, 2009, 08:27 PM
Everytime I check my battery stats via the system profiler, it keeps giving me different numbers. Is this normal??

Yes. My battery life varies depending on how I used it the last time. For example did I used it for 30 minutes then plug it back in. If I do that then it will say that my battery health is at 50% or less. If I use it until it sleeps and then plug it in it tells me it's 90% plus. If I use it without draining it multiple times in a row then it takes a couple times of completely draining it before it recovers.

Zilla
Apr 26, 2009, 09:04 PM
mine is 18 months old and i have 808 loads cycles on it and its still 88% remaining on the battery mine has been very good to me and even though the bezel on the screen is broken and i have put mine through hell

creator2456
Apr 26, 2009, 10:35 PM
mine is 18 months old and i have 808 loads cycles on it and its still 88% remaining on the battery mine has been very good to me and even though the bezel on the screen is broken and i have put mine through hell

Whenever I see numbers like that I need to ask what you do with your computer? You have almost 1.5 cycles per day for a year and a half! I am on my 3rd battery in just under three years and probably have a total of 300-350 cycles between them.

brewerdan
Apr 29, 2009, 01:48 AM
It all depends how you charge your battery, I never plug in the charger unless the laptop has actually died and so, 502 cycles, 100% health!

icedd
Apr 29, 2009, 04:17 PM
It all depends how you charge your battery, I never plug in the charger unless the laptop has actually died and so, 502 cycles, 100% health!

WTF that cannot possibly be right. Your battery should be dead if you only charge it when it dies.

Cycles: 7
Age of Mac: 2 Months
Health: 100%

MacBandit
Apr 29, 2009, 04:22 PM
WTF that cannot possibly be right. Your battery should be dead if you only charge it when it dies.

Cycles: 7
Age of Mac: 2 Months
Health: 100%

Why? This isn't lead acid technology.

icedd
Apr 29, 2009, 04:28 PM
Why? This isn't lead acid technology.

Read on the other thread, that it's not healthy for a Li-ion battery to have full discharges. 502 cycles, and still 100% seems a bit unrealistic, no?

http://www.batteryuniversity.com/partone-14A.htm

MacBandit
Apr 29, 2009, 04:32 PM
Read on the other thread, that it's not healthy for a Li-ion battery to have full discharges. 502 cycles, and still 100% seems a bit unrealistic, no?

http://www.batteryuniversity.com/partone-14A.htm

Well it's not in my experience if you look above I'm over 700 cycles and over 90%. I still get about 3hours and 40 minutes of battery life surfing the internet on wifi. Also I have found that I can improve my over all battery life if I do several full discharges to sleep before recharging.

icedd
Apr 29, 2009, 04:33 PM
Well it's not in my experience if you look above I'm over 700 cycles and over 90%. I still get about 3hours and 40 minutes of battery life surfing the internet on wifi. Also I have found that I can improve my over all battery life if I do several full discharges to sleep before recharging.

Really? That's awesome. How do you charge your battery?

MacBandit
Apr 29, 2009, 04:53 PM
I plug my MacBook into the Apple power brick and don't take it off until it's fully charged.

compuguy1088
Apr 30, 2009, 12:20 PM
http://att.macrumors.com/attachment.php?attachmentid=168213&d=1240504742

http://att.macrumors.com/attachment.php?attachmentid=168990&d=1241014752

I have no clue what is going on....my battery on my MBP SR (August 07') has been action up as late....and it only has approx. 80 cycles. The battery performance should be in the high 80%, but its going up and down constantly during discharge and charging. I have tried to calibrate the battery....

Edit: these pictures are from the last couple of days......its really acting crazy!

poozer115
Apr 30, 2009, 05:20 PM
My macbook right now:

poozer115
Apr 30, 2009, 05:21 PM
I didn't photoshop that picture or anything. I have no idea why my macbook's battery is so good. I'm a happy mac user xD.

vader1990
Apr 30, 2009, 06:41 PM
My macbook right now:

wait, what is this? is this istat? mine doesn't look like this?

todd2fst4u
Apr 30, 2009, 07:59 PM
just got my 15" penryn battery replaced for free yesterday. it was at 257 cycles and 74%. it was lasting about 2 1/2 hours on wifi

poozer115
Apr 30, 2009, 08:17 PM
wait, what is this? is this istat? mine doesn't look like this?Yep it's the iStat widget.

ZebraineZ
Apr 30, 2009, 08:17 PM
I am at like 233 cycles and 91%, this is my second battery which I got from warranty, and I have had it for about....6 months-ish :/ I used it everyday but I don't know how to keep it from dying, is 233 cycles bad??

MacBandit
Apr 30, 2009, 11:01 PM
Yep it's the iStat widget.

It's iStat Lite isn't it?

poozer115
May 1, 2009, 01:08 AM
It's iStat Lite isn't it?
I'm not quite sure. Is it important?

dalvin200
May 1, 2009, 01:20 AM
here's mine of my macbook unibody 13" which i got when it first was released..

http://www.quicksnapper.com/files/7183/166904685349FA9426F1F53_m.png

using istat pro (http://islayer.com)

DoNoHarm
May 1, 2009, 01:37 AM
Read on the other thread, that it's not healthy for a Li-ion battery to have full discharges. 502 cycles, and still 100% seems a bit unrealistic, no?

http://www.batteryuniversity.com/partone-14A.htm

thanks for that site! The engineer in me is giddy with excitement.

ViciousShadow21
May 1, 2009, 01:42 AM
thanks for that site! The engineer in me is giddy with excitement.

Battery University is the best. i took a day and just read that site. learned more than i ever wanted to know about batteries.

doubleohseven
May 1, 2009, 04:35 AM
I don't know what I'm doing right...but its gotta be something good. :cool:

MacBandit
May 1, 2009, 10:43 AM
I'm not quite sure. Is it important?

I just make remark about it because the commentator had said that your version of iStat looks completely different then there's. I'm pretty sure that the version you have is iStat Lite.

YahonMaizosz
May 4, 2009, 12:56 AM
Here is my 1 month old 17" Unibody MacBook Pro.. Coconut Battery was unable to get the "Correct" maximum battery charge, so I inputted 13000 as the value.. Is that right?

Also for a 1 month old battery, is 97% of total current charge normal? I always drain all my battery before plugging it with adapter and let it drain again..

http://i276.photobucket.com/albums/kk1/yahonmaizosz/Picture1.png

SebZen
May 4, 2009, 10:20 AM
Here is my 1 month old 17" Unibody MacBook Pro.. Coconut Battery was unable to get the "Correct" maximum battery charge, so I inputted 13000 as the value.. Is that right?

Also for a 1 month old battery, is 97% of total current charge normal? I always drain all my battery before plugging it with adapter and let it drain again..

http://i276.photobucket.com/albums/kk1/yahonmaizosz/Picture1.png

Not at all. If you take a look at the previous Coconut posts most have 4.5-5.5k

So anyway, Macs have Lithium batteries, right? I remember reading here a post that said it's not good to live the battery charging when it's fully charged, and now the batteryuni site says it's OK. Just making sure this is Li-Ion

henhowc
May 5, 2009, 04:15 AM
Cycles: 489
Charge remaining: 2823

Have had this SR MBP since August 2007. I haven't really been keeping up with "healthy" battery practices. My laptop is basically my only personal computer so its probably plugged in more often than not compared to some of you who have a desktop and laptop.

Tim Kurvers
May 30, 2009, 07:03 PM
First of all, sorry to partially resurrect this thread from the dead. I have been browsing MacRumors for a while & decided it was time to join.

Have been following these battery discussions as of late, to try and figure out why most of my colleagues & co-students have so varying results with their batteries.

What usually happens is that due to a busy workflow I do not pay attention to the 10 minutes remaining warning, which basically results in a flat out power drop.

As for my own battery health status, I'm just praying it's going to stay like this :confused:

Current Cycle Count: 1121
Current Capacity: 95%
Macbook Age: 27 months

Also interesting to see how both applications round their results differently.

Edit: Sorry about the wrong forum. I sincerely thought this was also a Macbook forum. Oh well ^.^

alphaod
May 30, 2009, 07:14 PM
Not at all. If you take a look at the previous Coconut posts most have 4.5-5.5k

So anyway, Macs have Lithium batteries, right? I remember reading here a post that said it's not good to live the battery charging when it's fully charged, and now the batteryuni site says it's OK. Just making sure this is Li-Ion

Just because the previous ones says 4.5-5.5k doesn't make that wrong at all.

That said, the correct value is 12820 mAh

decentdevil
Jun 15, 2009, 05:40 PM
hmm mine is
Cycles-100
Health-100%
Age- 6 Months
Current Battery Cap -4139
Orignal Battery Cap -4100

decentdevil
Jun 15, 2009, 05:41 PM
hmm mine is
Cycles-100
Health-100%
Age- 6 Months
Current Battery Cap -4139
Orignal Battery Cap -4100




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Alu Macbook(4gb,2.0),IBM R 61,HP V2000

Inakto
Jun 20, 2009, 10:30 AM
Im doing fine with my white macbook 13"

MacBandit
Jun 30, 2009, 01:27 AM
Well sort of off topic but the battery in my MacBook that despite having approx. 800 cycles and 90%+ health is exhibiting a pronounced bulge. Here's to hoping that Applecare covers it and the Apple Store I'm going to tomorrow will swap it out on the spot.

alexboy45
Jun 30, 2009, 05:27 AM
MBP 15" 2.53 late 2008

Mine is 100%
132 cycles
9 months old

i tend to use it on battery and then plug it in when i need to. this method seems to be working.

anthonyramos84
Jun 30, 2009, 09:04 AM
Wow I am very surprised by the results I see. I figured that after 300 Cycles, the capacity should have dropped to at least 85%. But I see 500++ cycles with 95% Capacity! :)

pinoyplaya
Jun 30, 2009, 12:28 PM
Coconut battery produces incorrect stats in Leopard.

Better to use Battery Health Monitor, or simply go to System Profiler -> Hardware -> Power.

According to Apple, a well-maintained battery should retain 80% capacity at 300 cycles (it's noted in a document on the Apple support site).


A few weeks ago, my battery was reporting 54% capacity at 300 cycles exactly. Went to an Apple store, and got a new one without problem (they used System Profiler). Heck, they didn't take my serial # or other information.

Hope this info helps.

FYI, Coconut Battery takes the data it displays directly from Apple's System Profiler. It just makes it easier without having to click on several things to get to it. With Coconut Battery, you can just click the application and there it is.

So you are wrong.

cababah
Jun 30, 2009, 12:30 PM
FYI, Coconut Battery takes the data it displays directly from Apple's System Profiler. It just makes it easier without having to click on several things to get to it. With Coconut Battery, you can just click the application and there it is.

So you are wrong.

lol...pwndizzled

harcosparky
Jun 30, 2009, 12:37 PM
FYI, Coconut Battery takes the data it displays directly from Apple's System Profiler. It just makes it easier without having to click on several things to get to it. With Coconut Battery, you can just click the application and there it is.

So you are wrong.

So I can install another App to display data I can get from System Profiler??

I'm sure Coconut doesn't take much HDD space, but hey it all adds up! ;)

creator2456
Jun 30, 2009, 02:10 PM
Coconut Battery does have problems reading the data from System Profiler sometimes for new models and OS updates.

Battery is only 6 or so months old. Replaced under Applecare.

cluthz
Jun 30, 2009, 02:18 PM
My Macbook Pro 2.2GHz (24 months old)
66% Health (3638 mAH)
592 cycles

MacBandit
Jun 30, 2009, 08:08 PM
Well good news. I took my MacBook and battery into the Apple Store and they looked at it tried to fit it back in the MacBook and grabbed a new one and replaced it under warranty.

Just for reference the battery on the white MacBook brand new reports an original capacity of 5020 mAh and a current maximum capacity of 5459 mAh.

smontague
Jul 1, 2009, 03:46 PM
I think I have a problem. Thoughts?:apple:

creator2456
Jul 1, 2009, 05:47 PM
I think I have a problem. Thoughts?:apple:

Take it to/call Apple and see what they say. You are over 300 cycles by a good amount, but still worth a shot as that seems to be pretty bad.

mos6502
Jul 1, 2009, 07:58 PM
http://i35.photobucket.com/albums/d199/namuriffxi/coconut.png

Obviously, my battery is shot :(

Is there a cheap enough source for a replacement? Apple's batteries are 160$ here in Canada... How do the eBay (Hong Kong) batteries perform?

Thanks for input!

coolbreeze
Jul 1, 2009, 08:20 PM
http://i35.photobucket.com/albums/d199/namuriffxi/coconut.png

Obviously, my battery is shot :(

Is there a cheap enough source for a replacement? Apple's batteries are 160$ here in Canada... How do the eBay (Hong Kong) batteries perform?

Thanks for input!

I'm guessing you are way out of warranty?...

Personally, I'd rather leave my machine plugged in all the time before I'd sink anything into a eBay battery. Then again, I guess if your machine is ancient and you don't feel investing in a genuine Apple battery, you might as well roll the dice. Just beware that fake batteries have a risk of explosion, among other things.

cababah
Jul 1, 2009, 08:24 PM
I'm guessing you are way out of warranty?...

Personally, I'd rather leave my machine plugged in all the time before I'd sink anything into a eBay battery. Then again, I guess if your machine is ancient and you don't feel investing in a genuine Apple battery, you might as well roll the dice. Just beware that fake batteries have a risk of explosion, among other things.

Yeah but if you get it geniune through Apple, they will at least warranty it right?

Seems pretty dumb to take the risk on saving a few bucks instead of going OEM with a warranty.

mos6502
Jul 1, 2009, 11:09 PM
The machine is out of warranty since march of this year. It's an "early 2008 macbook pro" with the penryn 2.4ghz cpu and 15.4 inch display.

I had my doubts about third party batteries from the start, which is why I asked. I think this laptop can last me a long time considering I use it for mundane tasks mostly. I will try to find a good deal on a genuine apple battery, I did not realize it will come with a warranty. Is it a 1 year AppleCare?

creator2456
Jul 2, 2009, 05:38 AM
The machine is out of warranty since march of this year. It's an "early 2008 macbook pro" with the penryn 2.4ghz cpu and 15.4 inch display.

I had my doubts about third party batteries from the start, which is why I asked. I think this laptop can last me a long time considering I use it for mundane tasks mostly. I will try to find a good deal on a genuine apple battery, I did not realize it will come with a warranty. Is it a 1 year AppleCare?

Still worth a try with Apple. That battery seems VERY bad and I would hope Apple wants to get it into their lab to test and find out why.

coolbreeze
Jul 2, 2009, 12:11 PM
Still worth a try with Apple. That battery seems VERY bad and I would hope Apple wants to get it into their lab to test and find out why.

I agree. I'd go to the genius bar and be polite, shocked, and open to suggestions as to how on earth the battery could be in such bad shape. You may be surprised at how they handle it (i.e. I wouldn't rule out a replacement or discount on a new battery) Just be firm and professional.

RobT
Jul 5, 2009, 01:06 PM
Awesome!

Just did a battery re-calibration. Back to 100%!

chrislaw
Jul 5, 2009, 02:02 PM
mine is down to 98% after just 2 cycles... any concern there?

creator2456
Jul 5, 2009, 05:30 PM
mine is down to 98% after just 2 cycles... any concern there?

Nope. Mine can jump around as much as +/-5% depending on how I have been using it over the last month.

rukus
Jul 5, 2009, 06:31 PM
222 cycles on uMBP 2.53 late 08.
98% health

BaronvdB
Jul 5, 2009, 07:21 PM
i keep my plugged in the most of the time...i have 4 cycles after about a month

salesguy
Jul 5, 2009, 07:22 PM
Nope. Mine can jump around as much as +/-5% depending on how I have been using it over the last month.

Same here, but only down to 98% then back up to full capacity, only had it 2 weeks though. ;)

chrislaw
Jul 5, 2009, 09:41 PM
Nope. Mine can jump around as much as +/-5% depending on how I have been using it over the last month.

I see, maybe I'll go ahead and calibrate now.


thanks a lot.

commander.navy
Aug 13, 2009, 12:52 PM
Hey ya'll ive got a black macbook ive had mine for a bout 30 or so months.

My mom has the same just white.

Mine black has 100% health and 254 cycles

my moms has 98% and 800 some cycles

should she be worried

wesrk
Aug 13, 2009, 01:21 PM
mine seems to be dying, this would be the second time that I get it replaced, if I end up doing that. I'm going to do a calibration and see if that helps.

http://img200.imageshack.us/img200/5683/imagen1qfy.png

HappyDude20
Aug 13, 2009, 01:55 PM
by calibrating once a month you mean simply fully charging and letting the battery drain out right?

Here are my stats using coconut battery:

John.B
Aug 13, 2009, 03:29 PM
Hey ya'll ive got a black macbook ive had mine for a bout 30 or so months.

My mom has the same just white.

Mine black has 100% health and 254 cycles

my moms has 98% and 800 some cycles

should she be worried
She should be celebrating! We're talking "happy dance" territory!

mmmdreg
Aug 17, 2009, 01:45 AM
white macbook.. 1 year.. 301 cycles, 0 capacity... not covered under extended warranty =( boo

mZex
Aug 17, 2009, 12:18 PM
2 years old ... but been around the same for a year :(

University took its sweet sweet toll :p

http://img.skitch.com/20090817-j8y5uqqn1qe8udq4x96agwjy2.preview.jpg (http://skitch.com/mzex/b5w1a/fullscreen)
Click for full size (http://skitch.com/mzex/b5w1a/fullscreen) - Uploaded with plasq (http://plasq.com)'s Skitch (http://skitch.com)

matthewlowery
Aug 17, 2009, 05:17 PM
rofl look at this:

Current Battery Capacity:
5041 mAh

Original Battery Capacity:
5020 mAh

then underneath 100%

Battery Loadcycles: 71




Is this good? 5 Months Old apparently, although I only got in May.

MacBandit
Aug 17, 2009, 10:38 PM
All the batteries start out above their rated capacity. My new battery in my Macbook is currently at 5326mAh and rated is 5020mAh. This is after 71 cycles.

helloimD4NNY
Aug 18, 2009, 12:12 AM
7 Cycles // 100%

I've only turned off my MBP like twice(I got it this week). I usually plug it in when it gives me the battery warning.

kdum8
Aug 19, 2009, 07:57 AM
After 150 cycles my battery is down to only 50% health according to iStatPro. Seems like mine is on the weaker end of the battery life range.
I will see if I can get it replaced under my Apple Care next month.

Anyone know what their standard procedure is for this? Am I eligible or it that considered normal wear and tear? :confused:

MacBandit
Aug 19, 2009, 10:49 AM
Just a note I now know from watching my father use his laptop recently that if you only partially drain and plug the battery in and never fully drain the battery you can get your brand new battery down to 70% in just a couple weeks.

After I had him reset the PMU and do a few full drain and recharge cycles it came back up to 95% but would not recover fully. Personally I think this means despite the battery supposedly not needing regular full draining it actually does. The people with a several hundred cycles and near 100% battery all seem to have the same process of draining the battery completely before recharging.

John.B
Aug 19, 2009, 03:29 PM
The people with a several hundred cycles and near 100% battery all seem to have the same process of draining the battery completely before recharging.

http://support.apple.com/kb/HT1490

MacBandit
Aug 19, 2009, 03:56 PM
http://support.apple.com/kb/HT1490

Yeah I'm aware of that but my statement is based on experience and reading others experience. From what I can tell every few months is far too long every few weeks is too long. I would say at most ever couple charge cycles.

cluthz
Aug 19, 2009, 04:16 PM
I basically do one drain each day then let it charge overnight.
My last battery did about 610 cycles (26 months old) and was ~60% health.
It was nearly 100% at 400 charges then gradually faded away until 60% health @600 cycles, were it doesn't really service my needs as my daily computer.

I'm @ 18 cycles now and 98% health.

ktmt101
Aug 23, 2009, 02:23 PM
I've still got 97% health on my battery after 302 cycles. During the time I have had my MacBook I've found that I can increase my battery life by turning off the airport when Im not using it, and using an ethernet cable when possible.

Arcarsenal
Sep 10, 2009, 11:17 PM
http://img10.imageshack.us/img10/5240/picture1qj.png

Not bad for a refurb MacBook

Beric
Sep 10, 2009, 11:21 PM
100%, 646 cycles. 24 months old.

d3m3nt3dp33qok
Sep 24, 2009, 02:47 PM
My little comp is nearly 2.5 years old, I have never calibrated the battery and Currently it is at

Cycle count: 619
Original Battery Capacity: 5020mAH
Current Battery Capacity: 4022mAH

So it's not as great a some of yours, but I'm proud of my little comp none the less

farkasam
Sep 24, 2009, 02:58 PM
I have 428 cycles on my 1st gen black macbook and 100% health. is this a fluke? i used to use it approx. 70% time on battery power and would only recharge when the warning dialog came up. now, i don't use it because of my brand new 15" MBP:D

nufanec
Sep 24, 2009, 03:01 PM
582 cycles, retaining 94% of the original FCC.

ipodnanofmradio
Oct 1, 2009, 09:16 AM
331 cycles
100%

Greenman85
Oct 1, 2009, 11:46 AM
I win.

judging by how much you are on your computer, not really.

machspeed5
Oct 1, 2009, 03:30 PM
here's my stats on a Feb. 2008 MBP 2.5GHz 8600M GT 512MB

to attach a window of your stats just do command-shift 4 then hit spacebar and click inside the window you want to capture, then attach here using "manage attachments" (after you click reply, under additional options.) :)

icedd
Oct 1, 2009, 08:16 PM
http://kttns.org/in2yx

Mexbearpig
Oct 1, 2009, 08:20 PM
http://i35.tinypic.com/22x62x.png

heaven
Oct 20, 2009, 12:27 PM
http://img24.imageshack.us/img24/6461/screenshot20091020at724.png

My current battery barely lasts 5 minutes now. Just ordered a new one :)

MacBandit
Oct 20, 2009, 12:47 PM
I've been tracking my new battery with CoconutBattery. For those of you that just joined the thread I had my battery replaced (under warranty) because it was bulging. The last battery was over 90% and had over 800 cycles on it. It's now been nearly 4 months and I have 144 cycles on it. It started out with 5484mAh it now has 5376mAh which is a loss of 1.04mAh per cycle. The new batteries are rated for 5020mAh which means if everything keeps going as it is I'll have 446cycles before I even get to the 100% mark. In fact at this rate this battery will have the same level of charge at 800cycles that the last one did. So all in all it's very consistent.

I've always had good luck with laptop batteries and I truly believe it's because when I use my laptop I typically pick it up and use it until dead/sleep before putting it back on charge. It never sits partially charged and very rarely does it ever get plugged back in without the battery being fully used first.

vedderone
Oct 22, 2009, 11:09 AM
is this good?



AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 5
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 5
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 1
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes

Battery Information:

Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 4899
Remaining Capacity (mAh): 4895
Amperage (mA): 0
Voltage (mV): 12533
Cycle Count: 91

AC Charger Information:

Connected: Yes
Charging: No


According to Coconut Battery

99% Battery Charge
97% Battery Capacity

Meljackson
Oct 22, 2009, 11:56 AM
Is this bad? I calibrated the other night. It didn't seem to help.

ftaok
Oct 22, 2009, 11:58 AM
Is this bad? I calibrated the other night. It didn't seem to help.

That doesn't look good to me. Seems a little low for just 14 cycles.

michael.lauden
Oct 22, 2009, 12:08 PM
might want to take a trip to the Apple store.

my MacBook is @ 104 cycles, and is 10 months old - and STILL has 95% capacity

Meljackson
Oct 22, 2009, 12:12 PM
might want to take a trip to the Apple store.

my MacBook is @ 104 cycles, and is 10 months old - and STILL has 95% capacity

That's the bad part. I don't have a local Apple store. It's over 3 hours away.

michael.lauden
Oct 22, 2009, 12:14 PM
okay let me restate:

might want to take a trip to the Apple store.


or not get what you paid for, and not cash in on your purchase/warranty

aicul
Oct 22, 2009, 12:16 PM
MBA : 22 months, 451 cycles and 89% capacity

vedderone
Oct 22, 2009, 12:52 PM
help me out is this any good or is this bad



AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 5
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 5
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 1
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes

Battery Information:

Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 4899
Remaining Capacity (mAh): 4895
Amperage (mA): 0
Voltage (mV): 12533
Cycle Count: 91

AC Charger Information:

Connected: Yes
Charging: No


According to Coconut Battery

99% Battery Charge
97% Battery Capacity

ftaok
Oct 22, 2009, 12:58 PM
That's the bad part. I don't have a local Apple store. It's over 3 hours away.

You can call them up and see if they agree that there is something wrong with the battery. If so, they'll send you a new battery, and you would send them the faulty one back. They'll give you a return label to use. You also need to secure the transaction with a credit card ... just in case you don't send the bad battery back.

cameronfield
Oct 22, 2009, 06:00 PM
After reading through this thread 3 times I've come to the following conclusion:

The absolute best way to keep your macbook battery healthy is to charge it up, let it die, charge it up, let it die.

This goes against what battery university and apple both say, but there are multiple people in this thread with lots (100+, 500+, etc.) of cycles who specifically state that they would use the battery until it died and then charge it fully.

I'm down to 86% right now on my 13" MBP - I'm gonna try this new method and see how it works.

3 days ago I was at 90%, and then my MBP died in my backpack while it was asleep and it sat for 12hrs and then I charged it and it was down to 86% :/.

After a few weeks of trying this method I'll post back with my results.

Oh yeah...

Cycles: 64
Health: 86% (4724mAh)

Adidas Addict
Oct 22, 2009, 06:17 PM
2.26 13" MBP

Info from Battery Health Monitor:

Original Capacity 100% (5,450 mAh)

Current Capacity 101% (5,490 mAh)

Charge Cycles 107

MBP is 5 months old, gets charged from flat (<5%) most days then unplugged until its around 5% again. Very rarely turned off, sleep whenever not used.

Really is a brilliant battery.

rodo
Oct 24, 2009, 07:47 PM
595 cycles, 69%

I don't follow any ceremony.... plug the charger whenever I need it...

I wanna replace it soon though...

BTW- are there 3 party batteries? any chance of getting these cool Polymer batteries for the old MBP?

Mackaper
Nov 3, 2009, 03:22 AM
1260 cycles on an 36 month old white macbook.
Battery 89 %.
In practice I get about 2 hours from it. Never intentionally "calibrated" the battery.
The battery in my Macbook pro early 2008 was dead after 42 cycles. I got a new battery from Apple, but I'm sceptical about it's performance.

RqThrottle
Nov 3, 2009, 08:40 AM
My MBP's battery has 2.5 years / 173 cycles and it has just started buldging. I still get 3.5 hours out of it, but a new one arrives tomorrow.

sircharlo
Nov 19, 2009, 02:02 PM
Age of my MacBook: 32 months
Battery load-cycles: 240

Health: 102.1 %

Original Battery Capacity: 5020 mAh
Current Battery Capacity: 5126 mAh

leftroom
Nov 19, 2009, 02:24 PM
MacBook Pro 17" 4,1

Battery-Loadcycles: 67
Age of your Mac: 21 months
Charger connected: Yes
Battery is charging: No

I can get out 2h-3h from the battery.

WindowsTraitor
Nov 19, 2009, 04:12 PM
Health: 73%

Cycles: 371

Age: 11 months

Battery reset: every 2 months.

Would they replace it or is this normal for 371 cycles?

MacBandit
Nov 19, 2009, 04:48 PM
Age of my MacBook: 32 months
Battery load-cycles: 240

Health: 102.1 %

Original Battery Capacity: 5020 mAh
Current Battery Capacity: 5126 mAh

32 months and only 240 cycles? Either you use it plugged in most of the time or it's sitting collecting dust. I got a new battery at the very end of June (old battery was swelling) and already have 183 cycles on it.

AppleNewton
Nov 19, 2009, 08:17 PM
32 months and only 240 cycles? Either you use it plugged in most of the time or it's sitting collecting dust. I got a new battery at the very end of June (old battery was swelling) and already have 183 cycles on it.

Well i think that is the age of his mac, earlier in the thread he mentioned something about a replaced battery; and that he doesnt leave it plugged in always.



I however have a tendency to keep it plugged in at home & work...which has always stayed at the same state since purchasing it back in May.

i usually get a good 6-8hours out of it on the 9400 and 5~7hours on the 9600 without bluetooth & wireless as i use ethernet at work.
i generally keep it attached to an external display at home so it varies but not too much oddly enough.

I thought I'd check my battery stats since i havent in a few weeks; lol I wish it lasted this long (its back to normal now, i think it was since i turned everything off and just let it sit..)
http://i50.tinypic.com/mhrs5v.png

:p

spartas
Nov 21, 2009, 03:16 PM
I've got an early 2008 MBP. I just calibrated my battery a few days ago, everything worked fine afterward. CoconutBattery reports that my battery capacity is 74% and 298 cycles, and this seems acceptable to me.

However, this morning I power on the machine and I have the dreaded "Service Battery" status in the battery menu. The battery works as expected, but I'm a bit unnerved by this. I've got an Apple Genius appointment for later today, but I'd like to get any ideas for best battery practices.

My typical battery usage pattern is as follows:

1. For the first week of owning a new battery, I charge it completely, and then discharge it completely to "break-in" the battery.
2. Afterwards, I charge the battery to ~80% and unplug the power adapter. Then I let the battery drain, usually only to around 20%, but sometimes I'll let it completely drain. Occasionally, I'll completely charge the battery, but not very often. (NOTE: This is probably not a good practice! A better practice might be to charge the battery completely, but I don't know.)
3. Once a month or so, I'll calibrate the battery according to Apple's recommended battery calibration instructions.

theGTIguy
Nov 21, 2009, 03:31 PM
I have a mid-2007 macbook, and my stats are looking pretty good for its age. 342 cycles and its the original battery, too.
http://i45.tinypic.com/2digemg.png

swins
Nov 23, 2009, 05:34 PM
Does anyone believe this or is there a problem???

Age of you mac: 27 months (810 days)
Battery loadcycles: 628

Current Battery Capacity: 5136 mAh
Original Batter Capacity: 5020 mAh

I do still seem to get very good battery life, 5 hours plus with light use, 2-3 heavy use, I do run it down to 0, then full charge every month or so, but as you can see it nearly gets the equivalent to a full charge every day.

Maybe I'm just lucky!

PS. Hi, this is my first post, after reading and learning a lot about all things mac maybe I will be of some help to someone on here one day!