Insane Battery Issues (4S and 5)

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Nick16, Nov 25, 2012.

  1. Nick16 macrumors regular

    Joined:
    Dec 27, 2011
    Location:
    FL
    #1
    So I've had the worst trouble with battery life with my iPhone 4S (both my brand new version and the refurbished version I had to get after an experience with my phone taking a swim)... it would drain faster than you can imagine, even when doing nothing. I'd wake up with it fully charged, take it off the charger, and by the time I get to class (a 10 minute walk across campus) it'd be around 80% with just generic use: music playing, checking Facebook, Twitter, and Instagram, and some texting and checking email. That all isn't really that intense I don't think and it's literally only ten minutes of usage, and 20% of battery is gone. I was always having to charge my phone at least twice a day, and if I went away for long periods of time, e.g. to a football game, I could count on it dying before getting in or shortly after, and being without a phone until getting home to charge it.

    All of this was one of the biggest factors in me deciding to get an iPhone 5 - so I did. I'm having the same problems. Battery is going quick, even when I:
    • Turn off location services
    • Turn off wifi
    • Close all apps
    • Have brightness very low and on auto-brightness
    • Use the device lightly (e.g. just texting for a while)

    I'm not sure if there's something corrupt with my saved backup or a bad app somewhere on my phone (don't know what it could be since the problem persists with all apps closed). I know the problem isn't a bad battery because it's been an issue on three phones now (two 4S' and a 5), or bad charging habits because my iPhone 5 is brand new.

    I've tried all the generic suggestions and tips as explained above, and don't know what to do at this point.
     
  2. DanielCoffey macrumors 65816

    DanielCoffey

    Joined:
    Nov 15, 2010
    Location:
    Edinburgh, UK
    #2
    If you look at the other battery issues threads, there are usually a few possible culprits.

    One is obviously a faulty battery.

    Next would be a poorly calibrated battery. This can be resolved by using the phone until it actually switches itself off due to low battery level. Go past the 20% and 10% auto-warnings all the way till it switches off the phone. This will not harm the battery because the iPhone will be monitoring the power of the battery and will self-switch off to protect the cell. Then charge the phone to full in one go uninterrupted without running any apps or anything. That will reset the top and bottom levels for the indicator.

    Next culprit would be a dodgy app which is doing some push/fetch servicing much more often that needed or some games that are hammering the processor/gpu. Turn the phone off then on to close all open apps and see if the power drains without using a single app.

    Finally, doing a DFU Restore on the phone will make sure the current firmware is completely up to date and correctly applied. This can help with some battery issues.
     
  3. Nick16 thread starter macrumors regular

    Joined:
    Dec 27, 2011
    Location:
    FL
    #3
    I don't see how it could possibly be a faulty or poorly corrupted battery on three separate devices, with issues right from the beginning every time. As for bad apps, I've tried what you suggested and it doesn't seem to be as big of an issue. I've done a major cleaning by deleting dozens of apps I don't use and then updating all apps that have updates available. Still at a loss as to what I can possibly do at this point.

    The phone drains battery fast even when it's in airplane mode and just playing music... this is highly abnormal.
     
  4. batting1000 macrumors 604

    Joined:
    Sep 4, 2011
    Location:
    Florida
    #4
    Try restoring it as new rather than from a backup.
     
  5. Nick16 thread starter macrumors regular

    Joined:
    Dec 27, 2011
    Location:
    FL
    #5
    That's what I'm thinking I may have to do. I'm just pushing it as a last-resort option because of the hassle of re-configuring all of my settings, setting up all my accounts, etc. Also I don't really want to lose my text messages and everything by doing this.
     

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