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

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

  1. ReallyBigFeet macrumors 68030


    Apr 15, 2010
    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?
  2. SnowLeopard2008 macrumors 604


    Jul 4, 2008
    Silicon Valley
    Looks like a shot battery to me. If you've done all the "software" fixes like reset, reinstall OS, etc.
  3. doboy macrumors 68020

    Jul 6, 2007
  4. CEmajr macrumors 601

    Dec 18, 2012
    Charlotte, NC
    Something is surely wrong with your battery. That last 20% is when my iPhone seems to hang onto battery life the longest.
  5. lfaber macrumors newbie

    Jul 2, 2013
    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.
  6. ReallyBigFeet thread starter macrumors 68030


    Apr 15, 2010
    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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