iPhone 3G shuts off at 20% Battery

Discussion in 'iPhone, iPod & iPad' started by sonknuck23, Jan 16, 2011.

  1. sonknuck23
    OP

    sonknuck23 Mighty Switch Force >

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    Montreal, Quebec
    When it first happened, I thought it was dead. Then, after 20 mins, I decide to turn it on for fun, and it works for like, another whole hour. Then, it turned off. But THIS time, when I tried to turn it on, it would give me the signal that the battery is dead.


    So, again, tonight, it happened. But this time, I turned it back on knowing it still had life, and then it would turn back off again. And on. And off. and on. And I know the battery still isn't dead, it keeps saying 20% left.

    It's a 3G 3.1.2 jailbroken & unlocked.

    UPDATE:

    So I assumed it was because it was dead again, and decided to plug it in. I checked on it 30 seconds later, and the battery was full? I'm so fucking confused.
     
  2. Mantis41

    Mantis41 GBAtemp Advanced Maniac

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    The Battery has probably got a couple of dead cells.
     
  3. TheTwoR's

    TheTwoR's Yay I can finally edit this thingy :D

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    Meh, just get a new battery.
    There are guides on YouTube that show how to open an iPhone 3G/3GS.
    Good luck.
     
  4. sonknuck23
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    sonknuck23 Mighty Switch Force >

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    Apr 25, 2008
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    Ah it's okay I know someone who will do it for me, if I supply the battery, he wont charge me.

    So are new batteries expensive?


    EDIT:

    I checked eBay. Is it normal that iPhone batteries are online like. . . 9$ with 3$ shipping and etc? Or are they probably weak as shit or something.