iPhone XR Battery percentage going down overnight?

Discussion in 'iPhone' started by Ridan, Jul 22, 2019.

  1. Ridan macrumors newbie

    Joined:
    Dec 3, 2018
    #1
    Hi, I recently bought an iPhone XR and my battery goes down about 5% overnight and I do not know why. The Screen On and Off usage time is at 0 minutes, I turn off background app refresh, I put on Do Not Disturb overnight yet it still goes down quite a bit. My battery health is at 100%. What could it possibly be?

    I already tried contacting Apple Support but they couldn't really help. They just directed me to the battery health page which I already read before...

    I attached a picture of my battery usage. As you can see nothing in use.
     

    Attached Files:

  2. now i see it macrumors 68040

    Joined:
    Jan 2, 2002
    #2
    Avoid checking battery drain when the charge indicator started at 100%.
    On an iPhone, 100% charge (not battery health) is anywhere between 94% to 100% charged depending on how long the charger what left connected and how much time has passed since then.

    The battery charge indicator could say 100% when it's really at 95% and if it drops a percent or two overnight, which is normal, it could then say 93% charge.

    As an experiment, charge the phone to 80% then turn on Battery/Low Power Mode, then turn on Airplane Mode- then lock the phone overnight. It shouldn't drop more than 1-2% if at all
     
  3. Ridan thread starter macrumors newbie

    Joined:
    Dec 3, 2018
    #3
    Please check my attached picture. I left my phone at 75% overnight not 100%.
     
  4. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #4
    Not much you can do as 5% is not a whole lot and may be normal.
     
  5. Ridan thread starter macrumors newbie

    Joined:
    Dec 3, 2018
    #5
    Losing 5% is not normal especially when you just bought it. I checked online and most other people lose 1-2% at most and my screen time is at 0 minutes which means nothing was being used so something is reducing my battery and I can't find the answer.
     
  6. EM2013 macrumors 68000

    EM2013

    Joined:
    Sep 2, 2013
    #6
    I’ll never understand why people don’t leave their devices charging over night.

    Not harmful to the battery and you don’t have to obsess over battery drain.
     
  7. The Game 161 macrumors P6

    The Game 161

    Joined:
    Dec 15, 2010
    Location:
    UK
    #7
    5% is nothing really...i could lose 10-14% overnight if i left it off the charge during NBA season. It’s why i always charge at night no matter what % the phone is at.
     
  8. Ridan thread starter macrumors newbie

    Joined:
    Dec 3, 2018
    #8
    Because that is not the solution to my problem. The problem is that I have a significant amount of battery drain on a new phone which can possibly become worse in the future so I want to troubleshoot it asap.
     
  9. Ridan thread starter macrumors newbie

    Joined:
    Dec 3, 2018
    #9
    23rd July battery drain:

    [​IMG]




    24th July battery drain:

    [​IMG]
     
  10. JBGoode macrumors 6502

    JBGoode

    Joined:
    Jun 16, 2018
    #10
    If you have the Facebook app on your phone (and probably other apps)it will cause drain on your phone overnight if left open in the background. This happens even if you have refresh disabled and it won't show that the app used battery. I just read an article about this and that app is certainly busy.

    I have it installed on my phone but never use it in favor of the browser version. One day I used it and my phone went from 100% to about 95% overnight which was unusual as it normally stays at 100% (or sometimes 99%). This happened a couple of nights in a row and I didn't think it was an app problem until I read this article about Facebook/battery drain. I killed the app and the drain issue stopped.

    Kill all of your apps at night and see if the drain issue is resolved. If it is, kill a different one each night (starting with Facebook) to see you can pinpoint the one causing issues.
     
  11. Ridan thread starter macrumors newbie

    Joined:
    Dec 3, 2018
    #11
    I don't leave any apps open nor do I use facebook.
     
  12. BlankStar macrumors 6502a

    BlankStar

    Joined:
    Aug 13, 2004
    Location:
    Belgium
    #12
    iOS is always doing stuff. For example, like MacOS there are several maintenance processes that rearrange files and optimise caches, etc. These run when you haven't used your phone for a while and stop when you unlock (so they don't use CPU/RAM, etc when you're using your phone).

    All these things cost battery. The only way to make sure the battery doesn't drop, is turn the phone off ;-)
     

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11 July 22, 2019