Skip navigation

Battery Life - Mountain Lion may be a power hog

1098 Views 3 Replies Latest reply: Jul 30, 2012 10:20 AM by JavaLink RSS
JavaLink Calculating status...
Currently Being Moderated
Jul 29, 2012 4:38 PM

Installed Mountain Line on my MacBook Air (mid-2012) two days ago.  The machine never got hot, nor used the fan on with the prior OS.  Mountain Lion has the fans screaming for mercy.  Just this evening, I left the machine idle with no tasks unplugged.  The OS managed to deplete a new battery to 1% in less than two hours.

 

Any solutions to this?  I was happy without the "mountain" in my lion.

MacBook Air, OS X Mountain Lion, Battery Hog
  • Griswaldo4g Level 1 Level 1 (10 points)
    Currently Being Moderated
    Jul 29, 2012 7:02 PM (in response to JavaLink)

    I would check for a Software update in the upper left under the Apple menu.  If there is nothing or it does not fix your problem, then I would try installing Mountain Lion fresh.

     

    You could backup your Air with Time Capsule or Carbon Copy Cloner (just a couple of ways to do it).  To reinstall you would hold option as you power your Mac up.  From here you would want to select a fresh install (I can't remember the exact wording).

     

    I have a 2011 MacBook Air and, even with several fresh installs of Lion, Mountain Lion blows Lion away with battery life.  Theoretically, with a newer Air and Intel's advancements in battery, you should get very good battery life on your new Air.  I have noticed that Mountain Lion has substantially better battery life while sleeping in particular.

  • ezollars Level 2 Level 2 (255 points)
    Currently Being Moderated
    Jul 29, 2012 7:32 PM (in response to JavaLink)

    It sounds like a runaway process of some sort. 

     

    If you run Activity Monitor, does it show anything chewing up CPU cycles?  That can give a clue as to what the issue is and, perhaps, how to solve it.

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.