Wonky battery meter

Discussion in 'iPhone Tips, Help and Troubleshooting' started by lorkp, Sep 13, 2009.

  1. lorkp macrumors member

    Joined:
    Apr 27, 2005
    #1
    My iPhone shut itself down last night because of a "low battery". I plug it in this morning and as soon as it boots up, it has 39% in the battery meter. How do I fix this?
     
  2. fireshot91 macrumors 601

    fireshot91

    Joined:
    Jul 31, 2008
    Location:
    Northern VA
    #2
    Charge it all the way up (100%), then let it run down (0%), and turn itself off, then charge it back to 100% again. That should re-calibrate your battery.
     

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