Battery Capacity dropping rapidly.

Discussion in 'MacBook Pro' started by ' r i S e n, May 22, 2011.

  1. ' r i S e n macrumors regular

    Joined:
    May 15, 2011
    #1
    I recently downloaded coconutBattery 2.7 and my capacity yesterday was 94%, and now it is 91% today.


    ... has anyone experienced something like this? 91% after 117 load cycles seems really bad.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Your battery health will fluctuate up and down over time. It's perfectly normal. This should answer most, if not all, of your battery questions:
     
  3. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #3
    Try calibrating. The capacity does fluctuate anyhow, so it will likely go back up at some point. If it ever drops below 80% before 1000 cycles, apple will replace it free.
     
  4. ' r i S e n thread starter macrumors regular

    Joined:
    May 15, 2011
    #4
    I calibrated yesterday actually and after calibration it displayed 94%, and now it displays 91%.

    I was unaware that the capacity itself fluctuates, that's really good to know. In order to be replaced for free, does it have to be under Apple Care if it's after 1 year?
     
  5. AlphaDogg macrumors 68040

    AlphaDogg

    Joined:
    May 20, 2010
    Location:
    Boulder, CO
    #5
    Yes.
     
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    Generally, yes. The Battery FAQ has been posted in at least 3 threads you've started. If you take the time to actually read it, your questions will be answered, as they're all addressed in the FAQ. I encourage you to read all of the Battery FAQ.
     
  7. ' r i S e n thread starter macrumors regular

    Joined:
    May 15, 2011
    #7
    You're probably right, but I guess it's just instinctive of me to make a post to have it addressed by users rather than referring to an FAQ. Just never really occurs to me ... although I have browsed it before when you have linked it - I'll admit that I haven't read it head to toe.

    Thanks to everyone's replies.
     

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