OSX 10.8.2 made battery life on macbook pro early 2010 even worse

I also have similar problem with my MBP early 2011. Since updated with 10.8.2, I might be a little bit better. Still too early to say if it better or not. To my satisfaction, I still love this Mac. I'm trying to be patient at the moment and enjoy working with the machine. Make sure to carry all those AC adapter everywhere!!! I hope the Apple engineer will sort all the things out.

I also have a mbp 2011 17" model and since I upgraded to 10.8.2 my battery performance has gone down drastically.....I didn;t have any battery issues when I first upgraded to mountain lion....but this new update has totally killed my battery....

So many people sufferring. I've a mid-2009 and used to get 4-5 hours of life - now I'm down to 2:45-3:00!

Please Apple, please sort this out, it's woeful.

It seem like we all have to carry our "nuclear power plant" together with our macbook. My case with Windows based notebook those days I did that all the time when travel. May be my miserable old days are back!!!

Same here with my MBP 2010 13". Had no major impacts according to battery life before 10.8.2.

But with the latest update I lost at least 3 hours.

BTW my Mountain Lion installation was a clean one - no upgrade.

10.8.2, also early 2011 MBP, I installed 10.8.2 thinking it would bring up my poor 10.8.1 performance that was around 4 or 4.5 hours... nope, now I get less than three hours!

I used my laptop for an hour and a half this morning on a full charge. Had 50% left. I'm charging it now and it says 2 hours till full charge.

Yes, I ran down the battery yesterday from full charge to dead, and it lasted three hours. I heard people say, "You just have to recalibrate it." Well, it's been fully charged again, and it's still dying incredibly fast.

What the heck. This is really unbelievable. How can I go back to 10.8.0? Or even Lion?

I have the exact same problem you do! I have an early 2008 MBP

Brand new Macbook Pro mid 2012...same issues. It shipped with Lion, I upgraded to Mountain Lion right away and had around 6-7 hour battery life. When the 10.8.2 update came out, I did a clean install on a SSD and moved my stock HDD to the optical bay. Immediately I noticed battery life was cut to 3-4 hours, sometimes worse. I assumed it was due to the extra hard drive, but now I am not sure...

Same problem here.

Mid 2010 MBP

NVIDIA GeForce GT 330M 512 MB

8 GB 1067 MHz DDR3

2.66 GHz Intel Core i7

MacBookPro6,2

OSX 10.8.2

Only just noticed as I normally leave it plugged in. Battery performance is now woeful! According to the system...

Battery Health: 90%

Battery Charge: 95%

Time Remaining: 1:24 !!!

surely there is something wrong here!

Have you all tried some of the trouble shooting basics? Reset SMC?

http://support.apple.com/kb/HT3964

mcsound wrote:

Have you all tried some of the trouble shooting basics? Reset SMC?

http://support.apple.com/kb/HT3964

I'm ashamed to say "No" I hadn't tried any such basics! I have now, and with some sucess. After a SMC reset I have new figures...

Battery Health: 90%

Battery Charge: 99%

Time Remaining: 4:07

Now that looks much better. I can't say with 100% certanty that it was the SMC reset that resolved the issue as I did discover process that was running and chewing up huge amounts of CPU. The KiesViaWiFiAgent application was responsable. I of course killed this off and the CPU also resumed normal operation. I have also deleted the app as I never want to see it running again.

SMC reset did not help. Same battery life. 😐

But thanks for the advice.

any solution yet.

I have upgraded to Mt lion os x on my macbook pro mid 2010 ; i see reduced life of battery. BTW it is new battery .

The same here. Just upgarded MBP from 10.6.8 to 10.8.3 and the battery is going literally as I look at it (from 89 to 84% in 2 minutes). Very upset as the laptop is not really that old...