Battery Life on Mountain Lion?

Discussion in 'MacBook Pro' started by Afbar1114, Jul 29, 2012.

  1. Afbar1114 macrumors 6502a

    Joined:
    Jun 18, 2012
    #1
    my battery life on my MBP late 2011 went down after installing mountain lion. anyone else having this issue? i charged it to 100% it said 5 hours or so used to say 8-9 hours. it was at 88% and said 4 hours.
     
  2. Gregintosh macrumors 68000

    Joined:
    Jan 29, 2008
    Location:
    Chicago
    #2
    The "estimate" changes frequently. For example, you stop doing anything and you close your programs and it may say 9 hours. You run a quick video and it will say 2 hours. It just changes all the time.

    The best way to measure how much battery you really got is to actually measure with a clock and see how much percent you lose after X amount of hours of usage. That's the most accurate way.
     
  3. wiznet macrumors regular

    Joined:
    May 30, 2012
    Location:
    Canada
    #3
    Mine's still close to nine hours. Mind you, my brightness is about 3/4..

    What are your settings like?

    And as said above, the estimate changes quite frequently.
     
  4. Afbar1114 thread starter macrumors 6502a

    Joined:
    Jun 18, 2012
  5. fins831 macrumors 6502a

    Joined:
    Oct 7, 2011
    #5
    2009 MBP averaged 6-7 hours and now getting 3-5 depending on video watching.

    I def think there is a drain with this version, i've seen a battery drop of like 30 percent. Was just 28 percent, and did some browsing at half brightness, and 10 min later I am at 17 percent. I think I tweeted 3 times, wrote 1 email, and read 2 articles...it just seems to have iPhone like battery drain...
     
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life. From that section:
    This should answer most, if not all, of your battery/charging questions:
     
  7. Afbar1114 thread starter macrumors 6502a

    Joined:
    Jun 18, 2012
    #7
    Called apple. The rep said it's a known issue
     
  8. dr.george macrumors newbie

    Joined:
    Jun 23, 2010
    #8

    hope they fix this soon, its driving me nuts
     
  9. Newbie MacUser macrumors member

    Joined:
    Jun 22, 2012
    #9
    I ain't upgrading to ML until they get that battery life issue fixed...
     
  10. jbzcar macrumors regular

    Joined:
    May 11, 2012
    #10
    Mine went up on my late 2008 after upgrading to ML.
     
  11. Afbar1114 thread starter macrumors 6502a

    Joined:
    Jun 18, 2012
    #11
    so right now i have 37% battery life losing about 1% every 3minutes. and it says i i have an hour left. this is not good. i might go back to lion if this doesnt get fixed
     

Share This Page