Macbook battery life = terrible

haleyvan

macrumors regular
Original poster
Feb 26, 2006
143
0
i calibrate my battery every month, and i did so when i got the computer in may, but i lose about 40% in an hour. coconutbattery told me a few weeks ago my curent battery capacity is 94. it is down to 84 today. anyone else experiencing this?
 

tobefirst

macrumors 601
Jan 24, 2005
4,066
1,169
St. Louis, MO
I've only had mine for about a month, but it's down to 92% capacity already. I called Applecare and asked them what their official rule on battery capacity was (i.e. How low does it have to get and how fast before it's deemed defective?) and, according to the guy I talked to, they don't have a rule. I'm hoping it will "level off" and not dip any further, but I'm not holding my breath.

So...I'm kinda in the same boat you are. Maybe.
 

dpaanlka

macrumors 601
Nov 16, 2004
4,868
6
Illinois
My PowerBook G4 battery quickly dropped to about 93% capacity at max charge... and has stayed that way since 2003. My PowerBook has only had 52 load cycles, though, in it's 42 month life. What are your cycles?

Maybe you have a faulty battery?
 

Maxiseller

macrumors 6502a
Jan 11, 2005
846
0
Little grey, chilly island.
Mine has dipped 2% in just 4 charges since I've had it! Again, I'm hoping that it levels off pretty soon.

It's possible to have more than the default battery capacity when it comes from the factory. Coconut battery will read the "standard" capacity, and thus read higher when it notices that you have a particuarly good battery. Don't worry though; it will ebb down!
 

Killyp

macrumors 68040
Jun 14, 2006
3,860
5
haleyvan said:
i calibrate my battery every month...

That's going to really reduce the battery life by causing unnecessary load cycles. You only need to calibrate it once.
 

tobefirst

macrumors 601
Jan 24, 2005
4,066
1,169
St. Louis, MO
Killyp said:
That's going to really reduce the battery life by causing unnecessary load cycles. You only need to calibrate it once.
I'm sure those cycles are going to use. You don't need to let the thing just sit there in order to calibrate it. The unnecessary load cycles would be very minimal indeed.
 

Mac-Addict

macrumors 65816
Aug 30, 2006
1,421
2
London
My sisters acer travelmate has 1 hour left on battery when fully charged, and the screen brightness drops soo much u can barely see it. So just be thankful you have a macbook
 

Josias

macrumors 68000
Mar 10, 2006
1,908
1
Mac-Addict said:
My sisters acer travelmate has 1 hour left on battery when fully charged, and the screen brightness drops soo much u can barely see it. So just be thankful you have a macbook
why do you think acer long ago was kicked off the american market? BTW, the Acer Travelmate 3020 is a complete ripoff the MacBooks. Have a look.;)
 

dpaanlka

macrumors 601
Nov 16, 2004
4,868
6
Illinois
Josias said:
why do you think acer long ago was kicked off the american market? BTW, the Acer Travelmate 3020 is a complete ripoff the MacBooks. Have a look.;)
Ugly of course. What is with PC companies and their "lets put everything in a bulge, behind a door, or sticking out" design mentality.
 

ITASOR

macrumors 601
Mar 20, 2005
4,398
3
In 3 load cycles, mine has gone from 100% to 98% capacity. Hoping it stops right there...it's only lost 47mah.
 

xappeal

macrumors regular
Dec 9, 2005
106
0
Brisbane - Australia
98% after four months and 85 load cycles. My old iBook G4 had over 400 load cycles on it when sold, it was still at 92%.

Adding as much ram as possible really reduces the strain on the battery. That and giving it a constant workout.
 

haleyvan

macrumors regular
Original poster
Feb 26, 2006
143
0
does coconutbattery give faulty readings? my current battery capacity is now at 94%. am i not reading this right?
 

MBHockey

macrumors 68040
Oct 4, 2003
3,929
168
New York
My 3+ year old Titanium PowerBook is at 93% of its original capacity (3944 mAh from 4200 mAh) after 182 load cycles in 38 months.

I'm pretty happy about that.
 

elppa

macrumors 68040
Nov 26, 2003
3,230
108
4 Months 72 loadcycles. Current Capacity 5257 mAh, original 5200mAh.

Am I reading that right? Does this mean to capacity has increased?
 

Attachments

Sutekidane

macrumors 6502a
Jan 26, 2005
936
1
Josias said:
why do you think acer long ago was kicked off the american market? BTW, the Acer Travelmate 3020 is a complete ripoff the MacBooks. Have a look.;)
Acer is the 3rd top laptop manufacturer in the world.
 

Wolf103FM

macrumors regular
Apr 29, 2006
154
0
Huntsville AL
My original MBP battery is still at 99% capacity (bought may 7th). It was one of the recalled batteries, so I got another through the exchange... the new one is down to 97% after a week. I'm undecided now whether to just send the old one back, or send the new one back
 

GCY

macrumors regular
Sep 5, 2006
162
0
NYC
my macbook is only 3 days old and its already 98%! Only charges it 3 times
OBC at 5200 and CBC at 5103!

btw....how do u post a screenshot?
 

terriyaki

macrumors 6502a
Aug 4, 2005
640
8
Vancouver
mdickson said:
My Macbook battery is at 103% of it's original capacity
4400 mAh is just coconutbattery's default setting when it doesn't know the exact capacity of your battery. The real number is around 4630 mAh