iPhone iOS 12.1 baterry drain very fast iPhone X

Discussion in 'iOS 12' started by robert1998, Nov 10, 2018.

  1. robert1998 macrumors 6502

    robert1998

    Joined:
    May 10, 2017
    #1
    Hello! My iPhone X's baterry is draining very fast and I don't know why. I disabled all the background apps and all the settings that may have an impact on battery life but nothing works. My battery even drains 20-25% during night, when I don't touch the phone. Battery Health is at 98%.
    1)What should I do?
    2)Is this website safe for downloading iOS 12.0.1? ipsw.me
    3)Do you have this problem also?
     
  2. aakshey macrumors 68000

    aakshey

    Joined:
    Jun 13, 2016
    #2
    Share some graphs.

    1. DFU restore might or might not be needed.

    2. Safe.

    3. Sorta. But it is an iOS 12 issue.
     
  3. robert1998 thread starter macrumors 6502

    robert1998

    Joined:
    May 10, 2017
    #3
    I tried to DFU restore and it's acting the same.
     
  4. friednoodles Suspended

    Joined:
    Feb 4, 2014
    #4
    My friend has had this problem starting with 12.1 on an iPhone SE, caused by a Siri-related background task (sometimes it wouldn’t show up in battery stats as from anything in particular, but other times it would show Siri being responsible for 80% of battery usage).

    Apple amazingly replaced his entire SE with a new one a few days ago, but restoring the iCloud backup brought the issue back. It also wasn’t resolved by installing the beta, so he’s now had to start completely fresh and it’s fixed. Some obscure/rarely trigger bug.
     
  5. aakshey macrumors 68000

    aakshey

    Joined:
    Jun 13, 2016
    #5
    Try a clean install. Don’t restore from backup.

    And share some graphs.
     
  6. badatusernames macrumors regular

    badatusernames

    Joined:
    Jul 1, 2018
    #6
    Just some observations I had during the last couple of weeks. Anytime I restored my phone and did not sign into iCloud I didn't have excessive overnight drain. Once I signed into iCloud the problem started again.
     
  7. aakshey macrumors 68000

    aakshey

    Joined:
    Jun 13, 2016
    #7
    What’s the way to fix that?
     
  8. badatusernames macrumors regular

    badatusernames

    Joined:
    Jul 1, 2018
    #8
    Just an observation. Not using iCloud isn't a viable option but those were my results.
     
  9. Minorite macrumors 6502

    Minorite

    Joined:
    May 8, 2018
    Location:
    Poland
    #9
    There were several threads mentioning that disabling True Tone and Screen Time helps, so worth checking. Also will you get a similar behavior in Low Power mode?
     

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8 November 10, 2018