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Battery life effected after installing mountain lion

1833 Views 13 Replies Latest reply: Jan 3, 2013 8:38 PM by johnnyfromwalker RSS Branched to a new discussion.
Peej18 Calculating status...
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Jul 28, 2012 11:48 AM

I installed Mountain Lion on my mac which is a 2009 model, Its 1 1/2 year old macbook. Battery as checked by apple officals is perfect just draining rally quick after mountain lion. Now my battery life is 2 and a half hours, down from 6-7 hours

MacBook Pro, OS X Mountain Lion
  • larryvavrek Level 1 Level 1 (10 points)
    Currently Being Moderated
    Jul 30, 2012 4:06 PM (in response to Peej18)

    Peej18 You are not alone on this one from what I have been reading. Hopefully Apple will come out with a patch soon. Must be a leak or something. I not buying the slow your mail pulling ect. We should be able to run everything as before the upgrade with nearly the same usage.



  • Franc_Iphone Calculating status...

    Please post on this common thread.



    Forbes has picked this up and the more people we see posting, I think the more attention we might get from Apple..


  • ellbow Calculating status...

    Battery life considerably reduced after upgrading to MLion(OSX 10.8).


    Details: Macbook pro 13 -  i7 Ivy bridge 2.9Ghz. Just 2 months old.


    Using only 3 tabbed web browsing. Tabs like gmail, facebook etc only. No other applications running other than finder.


    Before updgrage:

    showed more than 7 hours of battery life after full recharge with 50% brightness. Scrolling was smooth. Smooth animations while using mission control, app expose etc....

    ******************************************************************************** ************************************************

    After upgrade:

    consistently showing 4 hours 50 minutes of battery life only. And drains much faster and needs recharge in 3-4 hours with 50% brightness and switched off keyboard light completely. Also noted the laptop is heating up more after the upgrade.

    ******************************************************************************** ************************************************


    - Monitored everything like Disk activity, CPU, memory etc. Nothing unusual.

    - Tried to Switched off every ML features which would hav done this like "Notification Center". There is no way to do that. So took every applications off notification center. Scrolling is not smooth.. and animations while swiping fingers for mission control etc. are very rough.. The graphics of ML is not displaying it smoothly at all.

    ******************************************************************************** ************************************************


    All i want is to downgrade to Lion(10.7). Nothing more. It was working perfectly fine. smooth scrolling, smooth animations. better battery life.

    Apple please let me downgrade to Lion. How can i do that.

  • Thinman Level 1 Level 1 (5 points)
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    Aug 11, 2012 5:07 AM (in response to ellbow)


    Have similar time on battery after upgrade.  Turned everything I could, with no improvement in the battery life.  One can visibly see the % decreasing.

    Only good part is we are lucker than some whose battery is much shorter.



  • Xian Rinpoche Level 1 Level 1 (140 points)
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    Aug 11, 2012 8:53 PM (in response to Peej18)

    Just adding my name to the list. Late-2011 MBP with fewer than 20 cycles and battery life is at best 5 hours with brightness turned down to half. No processes of note consuming CPU cycles.

  • simos23 Calculating status...
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    Aug 14, 2012 12:18 PM (in response to Peej18)

    Totaly agree with the slowness of the animation, I guess this problem as well as many other problems need to be fixed in the coming update of mountain lion, I think also apple should make notification more open to other application like in the iphone. still many things to be done. I beleive that mountain lion has been released too early.

  • MannyVilla Calculating status...
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    Aug 21, 2012 6:02 AM (in response to Peej18)

    i'm having much worse experience with my 6month old MBP13, after upgrading to ML, the battery wouldnt charge properly now, and i cant use it for really mobility, have to carrry the charger everywhere.  Didnt experience any problem with the pre-installed Lion.

    now i'm having doubts of upgrading the rest of my macs.

  • MannyVilla Level 1 Level 1 (0 points)
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    Aug 21, 2012 6:03 AM (in response to Peej18)

    so, how do we get apple to respond to this kind of problem.  im a little frustrated here.

  • jeff168 Calculating status...
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    Sep 11, 2012 6:03 PM (in response to Peej18)

    I have a MacBook Air... same problem as everyone else in this and other posts. If I could downgrade I would.

  • MannyVilla Level 1 Level 1 (0 points)
    Currently Being Moderated
    Sep 11, 2012 6:14 PM (in response to jeff168)

    i already brought my mbp to the apple service center, and the rep admitted a lot of battery problems cropped up after the ML release.

  • appleinmyi Calculating status...

    I also have a Macbook Pro from 2009 (17", first unibody). Its been purring like a kitten, a perfect little beast, until I installed Lion. Now, my battery life is half of what it should be, or even more. Drains even faster. I am a light user, and I don't have a lot of large files on my hard drive, average #/size of programs.


    Even set Energy Saver to Better Battery Life. I am very disappointed, and regret upgrading. We need a fix. Was going to upgrade to Mountain Lion. Now, there is no way I'm doing that, especially after all the complaints you got for low battery life, after upgrade, until you have a fix.


    I absolutely adore my 2009 Macbook and am a loyal Apple customer. Lion and Mt Lion are a big disappointment.

  • johnnyfromwalker Calculating status...

    For all:


    the fix for me was the following commands.  I was able trace it to the citrix receiver process (AGAdminService) tagging the cpu and subsequently draining the battery in record times...I couldn't kill the process in activity monitor, had to run this:

    sudo launchctl unload -w /Library/LaunchDaemons/com.citrix.agadminservice.plist


    After i did this, the fan went silent, temp went down and batter life is back to 6+ hours like it is supposed to be! 


    Hope this helps.


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