Users complain of shorter battery life after Mountain Lion install, Apple reportedly launching investigation of issue

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Date: Friday, August 3rd, 2012, 12:15
Category: battery, MacBook, MacBook Air, MacBook Pro, News, Software

This is either the end of the world or a firmware update that may need to happen.

Per AppleInsider, a number of MacBook Pro and MacBook Air owners who updated to the recently-released OS X Mountain Lion are complaining of battery performance issues, with some reporting their batteries only last half as long as when OS X 10.7 Lion was installed.

Since the first complaints surfaced in an Apple Support Communities thread started on July 25, the day Mountain Lion launched, the number of reportedly affected MacBook Pro and MacBook Air owners has grown to the point where Apple has supposedly initiated an investigation. As of this writing the thread, titled “Battery life dropped considerably on Mountain Lion” now stands at 15 pages.

While most users are seeing battery life drops of about one to two hours, some cases claim performance has fallen to less than 50 percent as their machines are only capable of staying on for a little over two hours.

Community members have been trying a variety of methods to remedy the issue, from re-installing the software to turning off some of Mountain Lion’s new features like Power Nap, but the attempts have yet to produce a fool-proof solution. Some members have seen limited success in resetting the machine’s system management controller (SMC), though the battery issue crops up again after continued use.

Many users are reporting heightened CPU temperatures even when the machine is at idle, possibly pointing to a backend program management problem, while others are seeing battery drain when the system is sleeping.

Apple has taken notice of the complaints and, according to one community member, sent out a questionnaire on Friday in an attempt to pinpoint the problem.

OS X Mountain Lion launched last week, bringing with it over 200 new features including tighter iCloud integration, the Messages app, Notification Center, Facebook integration, Dictation, AirPlay Mirroring and Game Center.

Stay tuned for additional details as they become available.

And, as always, if you’ve seen this issue on your end, please let us know in the comments.

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