MBA13 battery indicator

Discussion in 'MacBook Air' started by rayjay86, Aug 30, 2011.

  1. rayjay86 macrumors 6502

    Joined:
    May 15, 2011
    #1
    I bought my MBA about a month ago. i5 256GB.

    iStat Pro and Coconut show battery health at 98% and now when I charge it, it doesn't go over 96-97% charge even though it says "battery fully charged" and the green LED on the charging cable is on.

    Is there a way to reset this?

    I only ever go through full charge cycles (once in a while I'll plug it back in when it's between 40-70% charged. I did the whole calibration from 100-0% when I first bought it.

    I hardly ever leave it plugged in for long periods of time. Basically once it reaches 100% I unplug although on occasion it does stay plugged in for a few hours.

    Anyone know why it doesn't show 100% charge or why the battery health has dropped 2% in a month?
     
  2. reputationZed macrumors 65816

    Joined:
    Mar 9, 2011
    Location:
    34°55′42″N 80°44′41″W (34.
    #2
    It's normal. There are a few threads on this issue already if you want the details.
     
  3. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
    It's normal that your battery health fluctuates up and down over time.
    It's normal that your battery may not charge to 100% every time.
    It's not necessary to unplug once a battery is charged, as it stops charging and cannot overcharge.

    This should answer most, if not all, of your battery questions:
     

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