After my PowerBook battery died, iBatt always reported it as 100% capacity... and it had had like 500-600 some cycles.
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Battery health down to 99% after 31 cycles - Why God, why?!
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After my PowerBook battery died, iBatt always reported it as 100% capacity... and it had had like 500-600 some cycles.
Oh dear - I do calibrate the battery reguarly and have done since I brought my mbp but my battery capacity has gone down to 45%, (from 5500 to 2490mAh) it's only 14 months old but I've clocked up 427 battery loadcycles in that time according to coconut battery. Think it might be time to buy a new battery and try and keep the charger plugged in more often.
I suppose it's best not to use the battery it unless you have to and keep it fully charged. is that right?
I suppose it's best not to use the battery it unless you have to and keep it fully charged. is that right?
How to post screen shot here ???
i'll post it just to confirm
what i did is i plug my adapter to a switch before plugged it in electrical socket, so basically everyday i run my mcabook on battery, and if the battery goes below 5% i will switch on the charger, and i'll leaeve it on till about 1~2 HOURS after it stated 100%.
I use coconut battery and iStat pro and both of them stated the same number
now it's :
Cycle : 450
Health : 100%
occasionally it will drop to 85%~98% but it'll raise again, when i leave it charged over night.
that's why i love my macbook so much, everything seems so perfect
Your battery is messed up. Go to apple store and they will you a new one free of charge
You probably have a faulty battery. Go to apple store and you might get it replaced free of charge.
Well mine fluctuates from 4800-5000...after I calibrated it got better, but then it goes right back down. It doesn't matter though, I am getting rid of this in Jan. for a MBP
Wow, I just opened coconutBattery for the second time since getting this Macbook, and realized how I treat this battery.
7 months.
4 battery-loadcycles.
I think I need to calibrate this thing.
Then again, it's still at 94% capacity, so it can't be hurting it much, if any.
jW
7 months.
4 battery-loadcycles.
I think I need to calibrate this thing.
Then again, it's still at 94% capacity, so it can't be hurting it much, if any.
jW
Ok, there's been a lot of posts in this thread now and I have one final question so that I can continue to keep my battery in tip top condition:
When should I charge it? Should I wait until it goes down to 0% or some other percentage, wait until the "Reserve Battery power" message come, or should I simply charge it whenever I get the chance?
Finally, is charging it while the laptop's on any worse than charging it when it's off or are they essentially the same in terms of keeping the battery healthy?
P.S. Ever since I started this thread, I've calibrated my battery twice, downloaded coconutBattery and saved it's readings over various days:
Is this too good to be true? Or is my battery REALLY getting better and better?!
When should I charge it? Should I wait until it goes down to 0% or some other percentage, wait until the "Reserve Battery power" message come, or should I simply charge it whenever I get the chance?
Finally, is charging it while the laptop's on any worse than charging it when it's off or are they essentially the same in terms of keeping the battery healthy?
P.S. Ever since I started this thread, I've calibrated my battery twice, downloaded coconutBattery and saved it's readings over various days:
Is this too good to be true? Or is my battery REALLY getting better and better?!
I use "Battery Health Monitor".
Its been at 99% since I got my MBP 2 months ago.
Current (and correct) stats are:
Original Capacity: 5,600 mAh (100%)
Current Capacity: 5,566 mAh (99%)
Current charge: 4,730 mAh. (84%)
Charge Cycles: 5% (18)
Voltage: 11.988V
Time left: 3:17
Dropped to 93% once
Edit: Somehow I doubt your battery is getting better. Best bet would to timer run it down. Only accurate way TBQFH.
Its been at 99% since I got my MBP 2 months ago.
Current (and correct) stats are:
Original Capacity: 5,600 mAh (100%)
Current Capacity: 5,566 mAh (99%)
Current charge: 4,730 mAh. (84%)
Charge Cycles: 5% (18)
Voltage: 11.988V
Time left: 3:17
Dropped to 93% once
Edit: Somehow I doubt your battery is getting better. Best bet would to timer run it down. Only accurate way TBQFH.
I use "Battery Health Monitor".
Its been at 99% since I got my MBP 2 months ago.
Current (and correct) stats are:
Original Capacity: 5,600 mAh (100%)
Current Capacity: 5,566 mAh (99%)
Current charge: 4,730 mAh. (84%)
Charge Cycles: 5% (18)
Voltage: 11.988V
Time left: 3:17
Dropped to 93% once
Edit: Somehow I doubt your battery is getting better. Best bet would to timer run it down. Only accurate way TBQFH.
I just downloaded and ran "Battery Health Monitor" it also says (like coconutBattery) that my current capacity is 6556 but it says that my original capacity was 6300 which makes more sense. Still HIGHER than I started with though!
So which program am I supposed to trust for Original Capacity; iStat, coconutBattery or Battery Health Monitor? Argh!
Also what does the "Battery Life Remaining" property represent in Battery Health Monitor? It says 8% for 33 cycles. What is the percentage supposed to represent?
You're right about battery time being the most accurate measure. With Airport on and my brightness at FULL (that's how I like it!) using various programs at once I get just under 3:50. When I first got my MBP I'm sure I only used to get around 3:20 so I'm pretty happy!
How to post screen shot here ???
i'll post it just to confirm
what i did is i plug my adapter to a switch before plugged it in electrical socket, so basically everyday i run my mcabook on battery, and if the battery goes below 5% i will switch on the charger, and i'll leaeve it on till about 1~2 HOURS after it stated 100%.
I use coconut battery and iStat pro and both of them stated the same number
now it's :
Cycle : 450
Health : 100%
occasionally it will drop to 85%~98% but it'll raise again, when i leave it charged over night.
that's why i love my macbook so much, everything seems so perfect
I try to discharge fully before recharging too. Run it down to a minute or when it auto-sleeps. My MBP and previously PowerBook and iBook always have great battery life/power.
For people with battery problems,
If the battery is charged all the time, chemical cannot flow around the battery, possibly shorter life when you have a higher cycle load.
Also, do not use it for 5 minutes and charge it! Once in awhile is ok, but if you frequently do this, then you will decrease the life.
I just downloaded and ran "Battery Health Monitor" it also says (like coconutBattery) that my current capacity is 6556 but it says that my original capacity was 6300 which makes more sense. Still HIGHER than I started with though!
So which program am I supposed to trust for Original Capacity; iStat, coconutBattery or Battery Health Monitor? Argh!
Also what does the "Battery Life Remaining" property represent in Battery Health Monitor? It says 8% for 33 cycles. What is the percentage supposed to represent?
You're right about battery time being the most accurate measure. With Airport on and my brightness at FULL (that's how I like it!) using various programs at once I get just under 3:50. When I first got my MBP I'm sure I only used to get around 3:20 so I'm pretty happy!
What operating system are you running? CoconutBattery does not work in Leopard and will report random, incorrect numbers under Leopard.
Nice, that's what I do at the moment and if it's working so well for yourself I'll gladly carry on doing so as well.
Ah, now it makes sense. Yep, I'm using Leopard; that must explain the Original Capacity differences but at least the Current Capacity values are the same.
I just downloaded and ran "Battery Health Monitor" it also says (like coconutBattery) that my current capacity is 6556 but it says that my original capacity was 6300 which makes more sense. Still HIGHER than I started with though!
So which program am I supposed to trust for Original Capacity; iStat, coconutBattery or Battery Health Monitor? Argh!
Also what does the "Battery Life Remaining" property represent in Battery Health Monitor? It says 8% for 33 cycles. What is the percentage supposed to represent?
You're right about battery time being the most accurate measure. With Airport on and my brightness at FULL (that's how I like it!) using various programs at once I get just under 3:50. When I first got my MBP I'm sure I only used to get around 3:20 so I'm pretty happy!
% towards 300.
Because if its <80% at < 300 cycles then apple will replace it for free
6300? The only thing I can think of is you have a higher wattage battery
But then you have the 17inch so that is a possibility.On the top of the battery of my 15" 2.4 October MBP: 60 w/h (Watt Hour)
I'd imagine yours is a 70 to 80 w/h so the 6300 could be true.
Coconut Battery is currently broken under Leopard...
Saw it crash under Leopard 10.5.1, PPC, PowerBook.
My measurements above are taken from 10.4.10, MBP 17". How I charge:
- Run on battery until 1 minute or auto-sleep
- Charge until full, stay charged until necessary to move
- Always sleep, never shut down while transporting
Saw it crash under Leopard 10.5.1, PPC, PowerBook.
My measurements above are taken from 10.4.10, MBP 17". How I charge:
- Run on battery until 1 minute or auto-sleep
- Charge until full, stay charged until necessary to move
- Always sleep, never shut down while transporting
Pssh, my iBook is at 13% after 1331 cycles.
(The guy I bought it from must've used it....a lot)
mine's going in for replacement. 23 claibrated cycles and at 71%. Not a good sign. But should I wait until the last minute to extend my chances of a proper resolution as far as possible? Still 5 months on original purchase warranty, no sign the battery will give out tomorrow. Just a law of diminishing returns and I use the little bugger on adapter 99% of the time. So should i wait it out a while longer?
