Wonky battery meter

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

  1. lorkp macrumors member

    Apr 27, 2005
    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


    Jul 31, 2008
    Northern VA
    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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