Battery drain!

Discussion in 'OS X Mountain Lion (10.8)' started by doobybiggs, Aug 5, 2012.

  1. macrumors 6502

    Mar 5, 2012
    I know there have been reports of this and Apple I guess is working on it ...

    Ever since I downloaded ML on release my better life on my MBP 2011 has probably dropped to about 60% of the length it use to be before ML.

    Are there any quick fixes for this or are we sitting around waiting on Apple to patch it?:confused:
  2. macrumors member

    Sep 9, 2009
    I don't know but I am experiencing the same thing.
  3. macrumors 65816


    Oct 26, 2011
    At the alternatives section.
  4. thread starter macrumors 6502

    Mar 5, 2012
    well hopefully Apple resolves this soon, cause this is F'in ridiculous. I have lost 10% battery in about 30 minutes of browsing the web. Plus another 15% for sleeping over the night when I normally lost like 5%

    I may just got back to Lion where I did not have this problem ...
  5. macrumors 6502

    Jan 8, 2011
    United Kingdom
    I've definitely seen a drop in battery life on my 2011 13" MBA.

    Went from 100% to 0 with about 3 hours usage today doing no more than occasional safari and iOS development.
  6. macrumors 6502a

    Sep 25, 2008
    Seems as if my MBA 11" is telling me its fully charged at 99%? It doesn't go up to a full charge of 100%!

    The battery also lasts only 2 hours, at most 3. It's supposed to last up to +/- 5 hours...

  7. macrumors 6502a

    Oct 7, 2011
    today i got to work at 10am, its now 1, and I have used my laptop for about 60 min and I have lost 35 percent....and by use I have had excel and safari open and thats spikes in CPU, nothing running in background....just terrible battery
  8. macrumors Westmere


    May 16, 2008
    It's normal that your battery may stop charging between 93-99%. For details, read the CHARGING section of the following link. This should answer most, if not all, of your battery/charging questions:
  9. thread starter macrumors 6502

    Mar 5, 2012
    yep that is about the battery life I am getting ... about 60% of what I was with Lion :mad:
  10. macrumors 6502

    Jan 8, 2011
    United Kingdom
    I am actually contemplating going back to 10.7, I never had any problems with it on my MBA, and the improvements on 10.8 aren't worth the loss in battery life.
  11. macrumors member

    Sep 10, 2010
    this is pathetic!
    I just lost 10% in 30min of safari browsing. no videos or downloading. just reading macrumors.

  12. thread starter macrumors 6502

    Mar 5, 2012
    yep I am with you on that ..
  13. macrumors member

    Jul 27, 2011
    i'm on the same boat as everyone else. I love all the feature that ML provides, but this is the only draw back and makes me wish i can still keep SL battery life i once had.
  14. thread starter macrumors 6502

    Mar 5, 2012
    been working on my laptop typing and surfing the web a little since 10 ... is it now 1230 and my battery life is already on 54%.

    normally it would be down to about 70-80% from what I have just been doing.:rolleyes:
  15. macrumors 6502


    Dec 20, 2011
    I had no problem with Lion, but I am definitely seeing a drop very similar to what you are experiencing.
  16. macrumors member

    Mar 12, 2012
    same model same exact battery life time, although i'm using it very very very heavily for those 3 hours (working from home) with vmware fusion running multiple apps.

    glad i'm not the only one.
  17. macrumors 6502a

    Oct 14, 2008
    I am experiencing battery drain too. MBA 13" 2012. It's draining more doing the same tasks (compared to Lion).
  18. GoGamecocks, Aug 7, 2012
    Last edited: Aug 7, 2012

    macrumors member

    Jul 17, 2011
    Just updated my early 2011 MBP and no battery issues thus far. Will update if I experience any.
  19. macrumors member

    Oct 10, 2006
    My mid 2010 MBP just went from 100% to 53% within 20 minutes. I had Safari, Tweetdeck and Calendar running. This is absolutely ridiculous.
  20. thread starter macrumors 6502

    Mar 5, 2012
    yep there is something seriously wrong with ML and a piece of code somewhere :mad:
  21. macrumors 68040


    Nov 3, 2011
    I cannot provide hard facts on the difference between Lion and ML - but there is a noticeable difference in battery life.
  22. macrumors member

    Mar 15, 2011
    I really hope that Apple releases a fix soon. This is ridiculous.
  23. macrumors 6502a


    Mar 1, 2012
    My battery surprising seems better now then it was in Lion. Did you all do a clean install?
  24. thread starter macrumors 6502

    Mar 5, 2012
    yep, a few times ...
  25. macrumors regular

    Sep 26, 2010
    Mmmm... been paying attention to this myself.

    I did a full charge to 0% on Monday/Tuesday, with brightness at around 2/3 and doing no more that light surfing. Used it from 1300-1615 on Monday and it dropped to 53%, then down to 48% overnight and from 0830-1130 yesterday at which point the automatic sleep kicked in at a reported 0% capacity.

    By my reckoning, that's 6.15 on a full charge. Seems about right, allowing for the overnight sleep. So I don' t think I have a problem here, but I am running Integrated on the MBPR (it is more than smooth enough at 2880x1800 res to not bother with the Discrete card) and I've also disabled suspend ram to disk via terminal.

    This is all on a MBPR 2.3 with 16Gb and 256Gb.

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