Standby battery drain

Discussion in 'iOS 12' started by souko, Nov 3, 2018.

  1. souko macrumors regular

    Joined:
    Jan 31, 2017
    #1
    Hi, I have battery drain about 1% per hour overnight. During day it is usually worse. In battery settings nothing shows. It happened on my iPhone 6S, I have iPhone Xr now set as new and it happens too. On my iPad Pro 10,5” it is not much different.
    Do you have same problem?
     
  2. Rhino1 macrumors member

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    Sep 12, 2012
    #2
  3. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
    #3
    It happens on my X and both my 10.5. All DFU restored and started clean. 1% an hour.

    Are you sure it also happens on 2018 iPhones like XR? I thought they were spared from this.
    --- Post Merged, Nov 3, 2018 ---
    On my mother’s 6th gen it’s more like 0.25-0.5% an hour. On my dad’s SE it’s like 2-3%+ per hour. And 1-2% an hour on my mother’s 7 too.
    --- Post Merged, Nov 3, 2018 ---
    Also done calibration, doesn’t help one bit.

    Even if there are no apps installed it doesn’t help.

    Even putting in airplane mode doesn’t help one bit.

    And this is across multiple iPhones and iPads. All of which drained 0-1% overnight till iOS 11.3.1.
     
  4. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
  5. souko thread starter macrumors regular

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    Jan 31, 2017
    #5
    I have screen time enabled. On Xr it was 5% in 9 hours last night. I would say it happens sometimes.

    On my iPhone 6S it started with iOS 10. On my iPad Pro sometimes during iOS 11.
     
  6. aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #6
    Doesn’t it happen always? Tried turning off screen time?
    --- Post Merged, Nov 4, 2018 ---
    How much do you lose overnight on iOS 12 / 6s?
     
  7. souko, Nov 4, 2018
    Last edited: Nov 4, 2018

    souko thread starter macrumors regular

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    Jan 31, 2017
    #7
    Did not try. I will try, thanks.

    10-20% on 6S.

    iPad Pro - there it happens every time. I will take a look at Xr more...

    I use Apple Watch 3 - can it be factor for discharging iPhone?

    Edit: last night - 10,5h iPhone not touched - -7% of battery.
     
  8. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
  9. souko thread starter macrumors regular

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    Jan 31, 2017
    #9
    Xr
     
  10. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
    #10
    Can you test drop on 4G too? On Wifi I’ve been getting a drop of 1% per hour but on 4G 4-5% an hour on my X.
     
  11. aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #11
    Yesterday night: over some 7 hrs approx

    X 92-89% on WiFi
    10.5 1 96-94% on WiFi
    10.5 2 80-77% on 4G
     
  12. souko thread starter macrumors regular

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    Jan 31, 2017
    #12
    Yes, I will test it next night. During last 8,5 hours night there was 5% drop on Xr on Wi-Fi
     
  13. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
    #13
    Try turning off screen time once and then let us see if that makes a difference.
     
  14. souko, Nov 6, 2018
    Last edited: Nov 6, 2018

    souko thread starter macrumors regular

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    Jan 31, 2017
    #14
    So with turned off screen time. 9 hours long night.
    iPad Pro 10,5” 4% battery drop
    iPhone Xr 13%! battery drop
    3CFC03CA-51DD-4F8A-94C0-8A4E26D5BA2E.jpeg
    52292830-029B-43E2-8EB4-7F584FE496ED.jpeg
    Only between 4-5 AM it shows Siri using battery. Any other hour it does not show any app.
     
  15. aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #15
    Yesterday night

    iPad Pro 10.5 63 to 60

    iPhone X 72 to 66.

    Approx 8 hrs.
    --- Post Merged, Nov 6, 2018 ---
    Please check with 4G tonight? Or was yesterday with 4G on and WiFi off?
     
  16. souko thread starter macrumors regular

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    Jan 31, 2017
    #16
    I tried 3,5 hours on 4G on Xr and battery drop was 4%
     
  17. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
    #17
    Can you test overnight on 4G once? On XR.

    Also, what have the drops been like on 6S?
    --- Post Merged, Nov 6, 2018 ---
    Also,I hope your starting points are not 100% on all devices. Right? Ideally starting point should be under 90%. Right?
     
  18. souko thread starter macrumors regular

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    Jan 31, 2017
    #18
    Yes, next night I will test it.
    6S I have sold so do not have stats from 6S.

    Yes, it was allways under 100%. (Usually about 90%)
     
  19. aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #19
    Ok. Thank You.

    I even checked at the Apple store.

    7 Plus dropped like 8-10% overnight.

    8+ about half of that.

    X series dropped 5%ish too overnight.
     
  20. C DM macrumors Sandy Bridge

    Joined:
    Oct 17, 2011
    #20
    Seems like a lot of activity at night time. If you aren't using the phone it's not normal.
     
  21. aakshey macrumors 6502a

    aakshey

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    Jun 13, 2016
    #21
    If it shows off screen time that’s not normal.

    Your drain would have been 0% without usage.
     
  22. supermars macrumors newbie

    supermars

    Joined:
    Dec 1, 2015
    #22
    My drain is about about 1% per hour at night, without doing nothing.
    Xs 12.1
     
  23. aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #23
    But is that on Wifi or 4G?

    It’s good to hear Apple isn’t doing planned obsolescence. My X drains more or less the same. I thought the newer phones drained 0-2% over 8 hrs.
    --- Post Merged, Nov 7, 2018 ---
    Last night over some 9-10 hrs, Pro 10.5 dropped 3-4% on Wifi. Over 7-8 hrs X dropped 4-5% over Wifi. Both with sceeen time on.
     
  24. souko thread starter macrumors regular

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    Jan 31, 2017
    #24
    Last night (7 hours)
    iPad Pro 10,5” 2% drop with Wi-Fi turned off
    iPhone Xr 4% battery drop on 4G.
    97E3F47E-D9E4-4CE6-BBDB-618E49570049.jpeg


    Yes, it was the first time with 13% battery drop on Xr and with these stats. Last night it is OK and without acticity at night. Hopefully that night was unique.
     
  25. aakshey, Nov 7, 2018
    Last edited: Nov 7, 2018

    aakshey macrumors 6502a

    aakshey

    Joined:
    Jun 13, 2016
    #25
    Was 4G on on the iPad?

    On your XR that seems to be more than 4%. Do you remember the percentage before/after going to sleep?
    --- Post Merged, Nov 7, 2018 ---
    Under these conditions on my X:

    Full brightness out in the sun

    Wifi off

    4G on

    AirPods full volume music through a music app in the background

    Parallel surfing the web on 4G

    I lose 1% every 2-2.5 mins.

    Assuming I’m under 99%, I lose 1% every 2-2.5 mins.

    So like from 99% to 90% in under 30 mins.
    --- Post Merged, Nov 7, 2018 ---
    Can you do one thing? Is there more drain if you have iMazing wifi sync on all the time?
     

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