MacBook only charging to 99%

Discussion in 'MacBook' started by Peachiihime, Feb 6, 2011.

  1. Peachiihime macrumors newbie

    Peachiihime

    Joined:
    Feb 6, 2011
    #1
    This is really weird! I put my MacBook to charge earlier, and the Magsafe has the green fully charged light, but the menu bar says it's fully charged at 99%?
    I don't get it. Any advice would be appreciated since I'm a total n00b. :rolleyes:
     
  2. karsten macrumors 6502a

    karsten

    Joined:
    Sep 3, 2010
  3. vistadude macrumors 65816

    Joined:
    Jan 3, 2010
    #3
    It's very common with laptop batteries. I've seen this on many computers before and it's normal.
     
  4. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #4
    It's working as designed. Read the section on CHARGING in the link below.

    This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
     
  5. Peachiihime thread starter macrumors newbie

    Peachiihime

    Joined:
    Feb 6, 2011
    #5
    Thank you :)
    It eventually went to 100% about 1-2 hours later. The capacity of the battery was 100% earlier today also but it went to 99% after it finished the cycle. Oh well. :D
     
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    Make sure your battery is properly calibrated, so your battery health readings are accurate.
     

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