iPhone XS Battery health dropped 2% overnight?

Discussion in 'iPhone' started by RickCMC, Jul 15, 2019.

  1. RickCMC macrumors member

    Joined:
    Sep 13, 2018
    #1
    So I’ve had the XS since launch date and as of yesterday the battery health was 94%. First off, is that normal to be at 94% after 10 months? I’m a pretty heavy user I’d say. But when I checked today it went from 94% to 92%. What the heck? Is this normal to be at this level after less than a year?
     
  2. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #2
    You battery health will vary.

    94% after 10 months is not outstanding but also not catastrophic.
     
  3. RickCMC thread starter macrumors member

    Joined:
    Sep 13, 2018
    #3
    Well it’s at 92% now and yesterday it was 94 so I have no clue how it could drop 2 percent overnight
     
  4. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #4
    The battery app is not absolutely accurate.
    Wait until tomorrow and when you take it off the charger see what it say then.
    If it drops a few more tomorrow, that would be something to get excited about.

    The battery on my last two iPhones were still at 100% after a year of use. How do you charge your iPhone.
     
  5. Crowbot macrumors 6502

    Crowbot

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    May 29, 2018
    Location:
    NYC
    #5
    You might want to start a chat with Apple. Since it's under warranty, now is the time to take care of a battery issue.
     
  6. RickCMC thread starter macrumors member

    Joined:
    Sep 13, 2018
    #6
    I never let it go below 20%. Sometimes I even use it while it’s plugged in. I’m just a heavy user though. Probably about 8 hours of “Screen On” battery time each day.
     
  7. now i see it macrumors 68040

    Joined:
    Jan 2, 2002
    #7
    there really isn't a conversation (according to Apple) about your battery health until it drops below 80%. So ignore it and check it again next year.
     
  8. JPack macrumors 601

    JPack

    Joined:
    Mar 27, 2017
    #8
    The capacity isn't measured every night - it's an average of a number of charge/discharge cycles.
     
  9. scottcampbell macrumors regular

    Joined:
    Aug 7, 2017
    #9
    I would try not to get overly concerned by battery health to the point where you're checking it daily.
    Think about all the batteries in your house. Think about the battery in your cars. You don't know their battery health, and it probably doesn't bother you. Ignorance is bliss!
     
  10. Newtons Apple macrumors Core

    Newtons Apple

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    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #10
    If you are as heavy user as you say, you will have more wear on the battery. Not much you can do unless goes below 80%.
     
  11. RickCMC thread starter macrumors member

    Joined:
    Sep 13, 2018
    #11
    Haha you are totally right. Before they offered the battery health statistics I never thought twice about my battery health!
    --- Post Merged, Jul 15, 2019 ---
    So I don’t feel as bad because my girlfriend has had her XS for a month less than me and she is already at 90% battery health!
     
  12. joeblow7777 macrumors 603

    Joined:
    Sep 7, 2010
    #12
    It’s an estimate. It didn’t actually drop 2% overnight, it was just recalculated. Nothing is wrong.
     
  13. Kram Sacul macrumors 6502

    Kram Sacul

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    Jan 10, 2018
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    Southern California
  14. Nacho98 macrumors member

    Joined:
    Jul 11, 2019
    #14
    Unless it's below 80% at a certain cycle count, Apple will tell him to pound sand, so no point talking to Apple.
     
  15. Crowbot macrumors 6502

    Crowbot

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    May 29, 2018
    Location:
    NYC
    #15
    Understood. But it would establish that they complained. Never hurts to ask.
     
  16. mikehalloran macrumors 65816

    Joined:
    Oct 14, 2018
    Location:
    The Sillie Con Valley
    #16
    True. That's the warranty point.

    Battery health, when it does decline — and they all do — does so in a non-linear fashion.

    Checked mine for the first time since new (October 2018). Now down to 95%. I'll be fine.
    That, too.
     
  17. littlemidge macrumors member

    littlemidge

    Joined:
    Oct 1, 2018
    #17
    My battery health was reporting to be 93% and I’ve had the Xs since launch.


    Just erased all content and settings, booted back up. Now it’s sitting at 95%. So I’d take these readings with a pinch of salt.
     

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16 July 15, 2019