White iPhone 3G 20% Batter while charging

Discussion in 'iPhone' started by Jeremy08, Nov 1, 2008.

  1. Jeremy08 macrumors regular

    Joined:
    Jul 27, 2008
    #1
    Ok, so my girlfriend plugs her iPhone in to charge it, and randomly, even though the batter is completely full, and it is still on the charger, her phone will display the alert that she only has 20% of her battery left, which is obviously not true. Any ideas? Prior issue? :confused:
     
  2. PowerFullMac macrumors 601

    PowerFullMac

    Joined:
    Oct 16, 2006
    #2
    If the battery actually works fine I would just restore it.
     
  3. daisuke07 macrumors regular

    Joined:
    Oct 25, 2008
    #3
    Was she using it while it was charging?

    Try using the phone until the battery dies and then xhaegebit full

    Otherwise try restoring
     
  4. Jeremy08 thread starter macrumors regular

    Joined:
    Jul 27, 2008
    #4
    Weird, she unplugged it from the computer it was charging on and the battery actually did show that she had low battery, and she got an alert saying there was only 10% left. She plugged it back in, i guess we'll see if it will charge now, if not, i guess we'll try restoring it.
     
  5. PowerFullMac macrumors 601

    PowerFullMac

    Joined:
    Oct 16, 2006
    #5
    How long was it charging for?

    If it continues to do this after you charge it for hours then restore but its most likely you will need to take it back.
     
  6. question fear macrumors 68020

    question fear

    Joined:
    Apr 10, 2003
    Location:
    The "Garden" state
    #6
    It's also possible the full battery indicator was wrong, and the charger recalibrated the indicator to the correct value.
     
  7. PowerFullMac macrumors 601

    PowerFullMac

    Joined:
    Oct 16, 2006
    #7
    Thats true, too, so sometimes you need to just leave it a bit so it can correct itself.
     
  8. daisuke07 macrumors regular

    Joined:
    Oct 25, 2008
    #8
    which usually happens when the iPhone has already when charged 300-400 times
     

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