Battery dying at odd percentages

Discussion in 'iPhone' started by kjmff5, Apr 15, 2014.

  1. kjmff5 macrumors regular

    Joined:
    Mar 27, 2011
    #1
    Hi I recently purchased an iPhone 5 in great condition off eBay. Since I bought it it will die at random percentages. Sometimes it'll be 20, sometimes 5, 7, or 15. I have never gone below 5 so far. I did do a reset via iTunes and reinstalled everything and that didn't do anything. Any ideas what's going on? I asked Dr. Google and the two options I saw were either one I have a faulty battery or it's because of iOS 7.1. I get about 9-12 hrs of battery life a day(spend a good portion of the day without signal so it's searching) even when dying at 15 percent. When it dies I get a 'plug in with red battery sign'.

    What's going on?
     
  2. T5BRICK macrumors 604

    T5BRICK

    Joined:
    Aug 3, 2006
    Location:
    Oregon
  3. iKaushal macrumors 6502

    iKaushal

    Joined:
    Jun 7, 2011
    Location:
    Mumbai, India
    #3
    My mom's iphone 3gs had similar issue. It used to die at about 20 or sometimes 30%.

    So I wiped it clean via iTunes and installed only bare minimum apps she needed. It's working fine now.

    So what I presume is some rouge app is working on ur iphone.

    I couldn't pin point the rogue app on her phone as it was my old phone with over 200 apps..now she has about 40 apps only.
     
  4. Frizers macrumors regular

    Joined:
    Jul 18, 2013
    #4
    This has been happening occasionally (like 4 times) with my 4S since 7.1. Could be the battery but I've certainly never noticed it before 7.1
     
  5. mlmwalt macrumors 6502a

    Joined:
    Jun 8, 2010
    Location:
    Philadelphia, Pa, USA
    #5
    I've been having this issue since my 4s got soaked in a Florida downpour last spring.:(

    It's a cr**shoot once the indicator gets below 30%. :mad:

    I'm just hoping I can hold out for the iP6 this fall. :cool:
     
  6. ValerieDurden macrumors 6502a

    Joined:
    Feb 3, 2010
    Location:
    Philadelphia, PA, USA
    #6
    It's most likely the battery, I know my 5 used to do similar things right before it was stolen (October), and I was just about to bring it into Apple and have them look at it but thieves don't wait. As soon as I get it back (it was recovered) I am heading straight to Apple to plead my case as my warranty is no longer valid because it expired in January and I am just now getting it back.
     
  7. eneisch macrumors 6502a

    Joined:
    Jul 11, 2008
    #7
    I had the same issue with my 1-1/2 year old iPhone 5. Took it to Apple and they ran a battery diagnostic and told me the battery was out of spec. Since I have AppleCare+ they replaced it for free.

    There is a big thread about this in Apple discussions. Most say replacing the battery fixes the issue. They also recommend buying a battery replacement kit from Amazon.com if you are out of warranty since it costs less than $10 and is supposedly easy to install.
     
  8. shawndc1 macrumors regular

    Joined:
    Feb 12, 2014
    #8
    i had the same problem with my 5, itll cut off at 27%,15%,20% , all i did was have tmobile switch it for a new 1 since i pay insurance
     
  9. jonnysods macrumors 603

    jonnysods

    Joined:
    Sep 20, 2006
    Location:
    There & Back Again
    #9
    Happened to my wife's phone. Apple ran a diagnostic and it turned out that the phone had a battery needed replacing as it was unhealthy.
     

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