iPhone 5 battery goes from 20% to 1% in less than 10 minutes

Discussion in 'iPhone' started by ReallyBigFeet, May 28, 2013.

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  1. ReallyBigFeet, May 28, 2013

    ReallyBigFeet macrumors 68030

    ReallyBigFeet

    Joined:
    Apr 15, 2010
    #1
    Recently been noticing that my battery "bottoms out" quickly once I hit the 20% remaining level. I've done full reset, forced discharge, the works. But it will routinely drop normally down to 20% (I'll get the alert) and then in a matter of 10 minutes or less, drop quickly down to 1%. In some cases, it will go straight from 16% down to 1%. And then it will auto-power-off.

    Doesn't matter what I'm using it for. Will happen while I watch it, phone doing nothing other than screen glowing.

    Other than trip to Genius bar....any other ideas?
     
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  2. SnowLeopard2008, May 28, 2013

    SnowLeopard2008 macrumors 604

    SnowLeopard2008

    Joined:
    Jul 4, 2008
    Location:
    Silicon Valley
    #2
    Looks like a shot battery to me. If you've done all the "software" fixes like reset, reinstall OS, etc.
     
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  3. doboy, May 28, 2013

    doboy macrumors 68020

    Joined:
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    #3
    Maybe the battery calibration is off.
     
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  4. CEmajr, May 28, 2013

    CEmajr macrumors 601

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    Location:
    Charlotte, NC
    #4
    Something is surely wrong with your battery. That last 20% is when my iPhone seems to hang onto battery life the longest.
     
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  5. lfaber, Jul 2, 2013

    lfaber macrumors newbie

    Joined:
    Jul 2, 2013
    #5
    I have the exact same problem with my iPhone. I am thinking that I will go into the Apple Store and see what they say. None of Apple's Forums mention this issue. Just some long-winded explanation on how to get the most out of one's battery.
     
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  6. ReallyBigFeet, Jul 3, 2013

    ReallyBigFeet thread starter macrumors 68030

    ReallyBigFeet

    Joined:
    Apr 15, 2010
    #6
    I went to the Genius bar, confirmed as bad battery. They replaced it.

    Also, kill FaceBook app when not in use.....sucker eats battery like crazy.
     
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