iPhone 4S shutting down when battery is around 10%??

Discussion in 'iPhone' started by jigzaw, May 10, 2013.

  1. jigzaw macrumors 6502

    Joined:
    Oct 12, 2012
    #1
    My phone has always shut off when the battery level reached about 1% but nowadays I'm noticing it shutting off later and later. Last week when my meter hit 7% the phone shut off, and just now it shut off at 11%. Anyone else notice this or know what's going on?
     
  2. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
  3. jigzaw thread starter macrumors 6502

    Joined:
    Oct 12, 2012
    #3
    It's not jailbroken. iOS 6.1.3
     
  4. c0dy macrumors newbie

    Joined:
    Oct 10, 2011
    Location:
    Spokane, WA
    #4
    Mine does the same - iP4S Verizon, 6.1.3 as well. This happened to me on my cab ride from the airport to my hotel in the Philippines and I was none too pleased. I'm assuming it's incorrect calibration on the battery life.
     
  5. kmpoboy2 macrumors 6502

    kmpoboy2

    Joined:
    Jul 10, 2010
    Location:
    Alabama
    #5
    My 5 does this from time to time. Sometimes it goes down to 1% and last a lot before shutting down. And sometimes it shutdowns at 5, 7 or 9%.
    Non jailbroken, iOS 6.1.4 but it does it since 6.1 I believe.
     
  6. testcard macrumors 68030

    testcard

    Joined:
    Apr 13, 2009
    Location:
    Middle England
    #6
    Might be worth calibrating the battery. Run the battery down until the phone shuts off completely, and then charge the battery fully to complete a full cycle. Worth doing this once a month.
     
  7. BittenApple macrumors 6502a

    BittenApple

    Joined:
    Nov 29, 2008
    #7
    Defective battery. Time to get it warrantied.
     
  8. vastoholic macrumors 68000

    vastoholic

    Joined:
    Jan 28, 2009
    Location:
    Tulsa, OK
    #8
    My 5 has been doing this but only after jail breaking. I just chalked it up to that. Installed battery doctor pro recently and will try calibrating it again soon to see if I see a change.
     

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