2012 Air Battery Health

Discussion in 'MacBook Air' started by MrGimper, Oct 19, 2013.

  1. MrGimper macrumors 603


    Sep 22, 2012
    Andover, UK
    Just noticed that the battery health on my Air doesn't look too great.

    Original max capacity 6700
    Current max capacity ~6100

    Percentage of max capacity ~91%

    Cycle count 41.

    Surely I shouldn't lose almost 10% after 41 cycles?
  2. GGJstudios macrumors Westmere


    May 16, 2008
    It is perfectly normal if your battery health (maximum capacity) is more or less than 100%, even when brand new, or if it fluctuates up or down over time. The gradual decline is not in a straight line downward, and it may decline more rapidly at some times and slower at others. For further details, read the CHECKING STATUS AND HEALTH section of the following link.
    The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
  3. DuganRun macrumors newbie

    Jun 28, 2012
    Nottingham, England.
    I've got 81% after 419 cycles, still gives me about 2.5 hours of use just as it did when new, I've always cycled the battery every 2 weeks.

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