OS X Mountain Lion 10.8.2 Found to Restore Battery Life to Previous Levels

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Posted September 10, 2012 at 7:27pm by iClarified

Apple is continuing work to improve the battery life of OS X Mountain Lion and with the latest build it appears to have restored battery life to OS X Lion levels, reports The Mac Observer.

With the release of Mountain Lion, users were upset to find that battery life had been reduced by over 30%. OS X 10.8.1 improved things somewhat but not to pre-Mountain Lion levels. Now tests completed by The Mac Observer show battery life returning to approximately 380 minutes with a 2011 MacBook Pro.

The big change came with 10.8.2, which is still undergoing developer testing. Using the latest build, 12C35, we saw a tremendous increase in battery life, to the point where running time was a few minutes longer than even that of 10.6.8.

We must reiterate that 10.8.2 is still a work-in-progress and is subject to change before it is released to the public. We do not know what changes Apple has made to Mountain Lion's code to account for the battery life increase, or if those changes must necessarily be reversed before release, but we hope that Apple will find a way to preserve the battery life improvements in future Mountain Lion updates.

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OS X Mountain Lion 10.8.2 Found to Restore Battery Life to Previous Levels

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miha - September 11, 2012 at 9:30am

my mbp 13" 2010 is running now much cooler (5-10C ) on 10.8.2. system processes are lower, whole system is much snapier, but i didnt check battery life yet. but i assume its better

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Ammar - September 11, 2012 at 9:33am

whr did u got the 10.8.2? can i get it too :)

miha - September 11, 2012 at 9:58am

on piratebay.. well its for devs, so if you dont mind having problems with your computer go for it. i didnt have any, but i must notice you. its really much better then 10.8.1

Ammar - September 11, 2012 at 5:54am

First off. great site! love the design redo. i have mountain lion but its not showing update i.e 10.8.2

mateen - September 11, 2012 at 5:56am

Hi, 10.8.2 has not been released to the public yet. It is still in beta testing for devs. Thanks for the feedback

Ammar - September 11, 2012 at 6:01am

Oh ok. till when its expected? I have a question about cycles. its been 1.5 months since i got macbook and my cycle r 57. what r cycles and will be my macbook be useless after 1000 cycle. how do i make cycle count less/increase less? p.s - am really looking for new update for this battery issue.ETA would be great! :)

mateen - September 11, 2012 at 6:03am

My guess would be a 10.8.2 release with iOS 6 - probably some where around september 19th. Your battery won't be useless, just performance will be slightly less.

cciev - September 10, 2012 at 9:39pm

we will see for ourselves. Same was said about the last update and it did jack shit

mateen - September 11, 2012 at 5:02am

Well the last update did provide some battery improvements, but hopefully it improves

miha - September 11, 2012 at 10:11am

it did lower temperatures on my mbp2010 13" quite a lot. i never noticed beyond 60C on 10.8.1 but now its running even lower then 50C, a system and user processes on idle (only about 5%) are much lower then 10.8.1. so i assume that battery must be better.

miha - September 11, 2012 at 11:21am

ups. below 60C.