Battery life dropped considerably on Mountain Lion.

lol, don't feed the troll

Late 2008 Macbook aluminum - 250GB HDD, 4GB RAM, NVIDIA 9400M

Upgraded from SL --> ML. Previously got 4-5 hours of battery life on full charge. Laptop also ran cool.

Since upgrading to 10.8.2 (clean install)... continue to get fluctuation of battery percentage. Laptop last 2-3 hrs tops. Also runs noticeably hotter. This computer does NOT have any apps installed.

WHen looking at activities monitor, I notice that "repair_packages" is constantly running (while idling). Disk acitivity also high.

I forced quit the process and activity/processes have slowed down considerably. Still wondering if this will battery life. Will continue to monitor.

Any thoughts on this "repair_packages" process???

Thanks!

I've just replaced the battery in my 2010 Macbook Pro on Mountain Lion. After six charges, battery health is only showing 91%. I've had it less than a week and it's dropping around one percent each day. Is this normal? Will the battery health stablize or do I have a problem?

Thanks

PS The old battery lasted 2 1/2 years and 1100 charge cycles. In sept, when I installed ML, the battery was still showing 87% battery health after a 1000 cycles. After two months on ML the health dropped to 80% and then the battery failed.

scartacus wrote:

I've just replaced the battery in my 2010 Macbook Pro on Mountain Lion. After six charges, battery health is only showing 91%. I've had it less than a week and it's dropping around one percent each day. Is this normal? Will the battery health stablize or do I have a problem?

Thanks

PS The old battery lasted 2 1/2 years and 1100 charge cycles. In sept, when I installed ML, the battery was still showing 87% battery health after a 1000 cycles. After two months on ML the health dropped to 80% and then the battery failed.

Are you discharging your battery to 0% (or nearly) before recharging?

thanks for the update Franc_iphone , I'm following your posts as I think we have similar machines.

mid 2011 MBP 2 core i7 8gb still running lion for now

Dr Ed, there are options for those who feel the need to enter forums with comments such as yours. It is called therapy. Am sure some must have suggested it already in your past (gf, relation). If you feel the need to come here and make amusing bellitling comments, the normal venue is therapy. Maybe that will fix your battery problem.

Scartacus,

If you just replaced the battery, and after 6 charges you are exhibiting the characteristics you mention, then you have one or several issues. Assuming the battery is genuine (all bets are off if not an Apple), then normally, higher Technical Service deems the logicboard as defective. One of the 4 MBAs that I replaced had a defective logic board, the trackpad did not work properly. Unit should not overheat as it does. Even if you discharged to 0%, no way you would drop 9%. i have seen it loose 0.2 to 0.3 percent if going to zero, but then, on full calibration, it bumps back a bit.

The overheating you are describing sounds to me like GPU. Do you ever use youtube, flash videos and leave the browser open ? That could indeed fire up your GPU.

Oh, another thing. Tech Support told me that any fast drain on a MB, and a battery replacement does not repair it, at the very least they assume a defective SMC controller, which, again, comes down to logicboard replacement. Your one week test should also include a clean install without any other software, which would help reduce unknown variables caused by other software.

Doing Word work, at full charge, an MBA battery should indicate 9-10 hrs:

Hello !

I see there are more than 200 pages of discussion. I am having serious problems after 10.8.2 upgrade from 10.7.5. The battery life is horrible and it has reduced to half ~ 3.5 hours. I contacted Apple and as a first step the resent the SMC but still the problem remains.

Would like to know if any of you were able get the problem fixed ?

NKD007 wrote:

Hello !

I see there are more than 200 pages of discussion. I am having serious problems after 10.8.2 upgrade from 10.7.5. The battery life is horrible and it has reduced to half ~ 3.5 hours. I contacted Apple and as a first step the resent the SMC but still the problem remains.

Would like to know if any of you were able get the problem fixed ?

I, along with some others, have reverted back to Lion or SL until Apple sorts this out. I've outlined the process I followed earlier in this thread, which I believe you can get to here: https://discussions.apple.com/thread/4135250?answerId=20329937022#20329937022

After trying to help troubleshoot to determine root causes, I'm now waiting to hear what people experience with 10.8.3, once it is publicly available, before I venture into ML territory again.

Good Luck

I am one of the sufferers. My agony is also detailed in some of the odd 204-pages here.

nicely paid ... for being Apple supporter ....

<Edited By Host>

Apple - Batteries - Notebooks

Ah I am marked now ...

my posts have been *edited* ...

Apple Support Communities - Terms of Use

Out of the 6 charges, I allowed the battery to cut out at 0% twice.

Thanks for your replies, the battery is brand new from Apple (£100) Doubt the logicboard is defective because it's worked perfectly for two and half years. (1000+ charges on the old battery) To my knowledge the machine is not overheating, it''s just losing battery health. That said, it fluctuates between 93% health and 91% health.

------------

scartacus,

If you just replaced the battery, and after 6 charges you are exhibiting the characteristics you mention, then you have one or several issues. Assuming the battery is genuine (all bets are off if not an Apple), then normally, higher Technical Service deems the logicboard as defective. One of the 4 MBAs that I replaced had a defective logic board, the trackpad did not work properly. Unit should not overheat as it does. Even if you discharged to 0%, no way you would drop 9%. i have seen it loose 0.2 to 0.3 percent if going to zero, but then, on full calibration, it bumps back a bit.

The overheating you are describing sounds to me like GPU. Do you ever use youtube, flash videos and leave the browser open ? That could indeed fire up your GPU.

Oh, another thing. Tech Support told me that any fast drain on a MB, and a battery replacement does not repair it, at the very least they assume a defective SMC controller, which, again, comes down to logicboard replacement. Your one week test should also include a clean install without any other software, which would help reduce unknown variables caused by other software.

Doing Word work, at full charge, an MBA battery should indicate 9-10 hrs: