IPhone 4 iOS 4.2 Poor Battery life

Discussion in 'iPhone Tips, Help and Troubleshooting' started by sasquachnw, Dec 24, 2010.

  1. sasquachnw macrumors newbie

    Joined:
    Dec 23, 2010
    Location:
    Seattle WA.
    #1
    I recently updated my IPhone 4 to 4.2 and since then the battery life has been horrible.
    The device will drain the battery through the night when not plugged in,without any use, except being set to be an alarm clock.
    Email push is on manual.
    Data roaming is off... I mention this because I first noticed the problem while in Shanghai.
    I also notice that when on a call the display flashes
    I have read other threads about poor battery and nothing except having the app Motion GPS appears similar to my issue.
    There is talk about an app called "case app" and I do not know about this app.
    My device is about 30 days old.

    Thanks for anything that can help me.
     
  2. wayneholbrook macrumors regular

    wayneholbrook

    Joined:
    Mar 30, 2010
    Location:
    Miami Florida
    #2
    Wow, thats amazing. I have the exact issue. I tried rebooting, I tried killing all task, and last I did a restore. My Iphone 4 wont make it past 5 hours without having to plug it back in. When I say 5 hours, I'm talking very little use.
     
  3. Vancelot macrumors newbie

    Joined:
    Dec 25, 2010
    #3
    I bought my iP4 with preinstalled iOS 4.2.1 version.
    I noticed also that the battery drains very fast.

    Do I have to restore? By the way, this is my first iPhone.

    My iP4 is a factory unlocked phone. I'm using it only for Internet.
    My Ip4 is not jailbroken.
    Email push in manual mode.

    TIME SINCE LAST FULL CHARGE:
    Battery: 12%
    Usage: 5hours, 35mins.
    Standby: 11hrs, 24mins.

    I think that's all.
     
  4. wayneholbrook macrumors regular

    wayneholbrook

    Joined:
    Mar 30, 2010
    Location:
    Miami Florida
    #4
    I have already tried to restore the software but still losing charge fast. I'm just going to wait for the next update since it seems like this only happens to a few people. If it gets any worse than I'll pay the store a visit and try and do an exchange.
     
  5. sasquachnw thread starter macrumors newbie

    Joined:
    Dec 23, 2010
    Location:
    Seattle WA.
    #5
    IPhone 4 iOS 4.2 poor battery life

    I believe I have solved my problem
    I did a DFU restore and turned off the receiver in Motion GPS.
    Menu-settings-multitasking-always off.
    I charged my IPhone last night and still at 9:35 pm on Christmas Day still have 52% battery. after using the device for sms today and some time on a face call with the UK.

    Thanks for everybody's suggestions
    Happy New Year
    Sasquachnw
     

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