Apple Studying Issue With iPhone 6s & 6s Plus Not Updating Battery Percentage

Discussion in 'MacRumors.com News Discussion' started by MacRumors, Jan 16, 2016.

  1. MacRumors macrumors bot

    MacRumors

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    Apple this week posted a new support document addressing an issue some iPhone 6s and 6s Plus users have been experiencing with the battery percentage displayed in the status bar on their displays not updating as the battery drains.

    [​IMG]

    The company notes it is investigating the issue and working on a solution, although it appears to be related to time zone or clock settings. In the meantime, users experiencing the problem are advised to restart their devices and make sure the time is being automatically set in Settings.
    A fairly lengthy discussion thread in Apple's discussion forums reveals a number of users running into the problem, dating back nearly to the new models' launch last September. Many of the users experiencing the issue had been manually adjusting their phones' clock settings in order to bypass timer-based barriers in certain games, and Apple's suggestion about ensuring the time is being set automatically indicates the battery issue is indeed likely related to clock settings.

    Article Link: Apple Studying Issue With iPhone 6s & 6s Plus Not Updating Battery Percentage
     
  2. 555gallardo macrumors member

    555gallardo

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    #2
    That could mean we may get infinite battery life just by manually changing time!
     
  3. lolkthxbai macrumors 65816

    lolkthxbai

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    #3
    How weird. I wonder why the battery percentage would be tied to the time... Could it be that the battery percentage is recorded and gets stuck if the time gets set back?
     
  4. Alexrat1996 macrumors 68000

    Alexrat1996

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    #4
    I have this issue but i have not changed the time at all i did a restore same issue i'm taking it to apple for replacement
     
  5. fzfpff macrumors member

    fzfpff

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    #5
    Maybe updating battery status too often would use too much energy and drain the battery. Yay for thinner iPhones!
     
  6. bushido Suspended

    bushido

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    #6
    why would u take it back for a replacement if you just read on this very page that its a software issue Apple is aware of ... ?
     
  7. soupcan macrumors 6502a

    soupcan

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    #7
    If only...


    I have a 6S. It's fine.
     
  8. 555gallardo macrumors member

    555gallardo

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    I'm about to get either 6s Plus or the new 4-incher. Depends on what it'd be like
     
  9. djeeyore25 macrumors regular

    djeeyore25

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    #9
    My Apple Watch has been having battery display issues recently as well. After I finish a run it'll show a much lower percentage than is actually left, and stay on that percentage until I place it on the charger. Once it's on the charger it jumps up a bunch to where the batter level actually is. Then the battery level drops accurately with use. I suppose battery levels are just complicated.
     
  10. furi0usbee macrumors 68000

    furi0usbee

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    i wonder if Apple is playing with the percentage like they did with the signal bars...

    EDIT: I still have the iPhone 5. And I literally can be on 1% for 45 minutes, or be on 39% and then restart the phone only to find out I'm at 8%.
     
  11. Glassed Silver macrumors 68000

    Glassed Silver

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    #11
    Article →
    Maybe it's a combination of time settings and specific batches of phones.

    Yes they do and afaik they admit to it.
    What you described however seems to be a battery calibration issue. At least the latter example.
    The former is by design.
    Ever noticed you see 100% a whole lot longer than 98% for example?
    Psychological reasons. You don't want the customer to see the drain right after unplugging the device.
    Apple's not the only one to do that.

    And as for 1%, that's not actually 1% either, the battery is always left with a remaining charge of 2-5% iirc in most cases, because actually emptying the battery can harm it. Running below 20% and above 80% wears out a battery too, but it's really a complete discharge (not what the phone force shut downs you at, but say leaving the phone uncharged after that for a prolonged time) that can ruin the battery.

    Glassed Silver:mac
     
  12. EM2013 macrumors 6502a

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    #12
    I've had this issue on my 6S for a while now but my time is set to automatic.
     
  13. CGJay macrumors member

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    #13
    My understanding was that '100%' was not necessarily just 1% worth of battery on top of another 99, but rather about 3-5% worth of battery that is drained and recharged when someone leaves the phone on charge at 100%.
     
  14. Jerry Raia Contributor

    Jerry Raia

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    #14
    I have seen this issue from time to time on almost every iPhone model I have owned.
     
  15. topmounter macrumors 68020

    topmounter

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    #15
    The support doc says "investigating" not "studying".
     
  16. KJL3000 macrumors regular

    KJL3000

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    #16
    Same here with iPhone 5! Did a battery calibration, helped for some days then ended up with the iPhone shutting down at around 26% displayed battery life again.
     
  17. mimeArtist macrumors member

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    #17
    I've not changed the time on mine and have noticed twice recently that the battery percentage says about 12% and then just dies... when I charge and manage to start up again it's down to 4%
     
  18. GhostRaider macrumors regular

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  19. Alexrat1996 macrumors 68000

    Alexrat1996

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    #19
    Take it to apple
     
  20. epicrayban macrumors 68040

    epicrayban

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    #20
    So that's how the iPhone has "good" battery life. ;)
     
  21. PS4DailyLove macrumors newbie

    PS4DailyLove

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    #21
    Hmm, my 6s is on manual since I'd like to control the time zone info but it doesn't have this problem.
     
  22. Alexrat1996 macrumors 68000

    Alexrat1996

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    #22
    apple support advisor told me to take in for replacement the higher support one
    --- Post Merged, Jan 16, 2016 ---
    the issue happen when my defective battery case stopped working
     
  23. Glassed Silver macrumors 68000

    Glassed Silver

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    #23
    Bingo.

    Same issue here.
    I stop expecting premium quality of an iPhone after the 2 year mark after launch, so I'm not even surprised to see this happening on my device.
    Yearly iOS upgrades come at a price it seems. (the battery is NEW, mind you.)

    Glassed Silver:mac
     
  24. Matthew.H macrumors regular

    Matthew.H

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    #24
    I'm not having this issue fortunately. Seems odd though how the time and battery would be linked.
     
  25. Markoth macrumors regular

    Markoth

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    #25
    Part of the problem, as I understand it, is that the way battery life is measured is by measuring the gradual voltage drop, which occurs as the battery loses power. The issue with this method, is it can be affected by temperature. I've found that this issue occurs quite frequently after using my iPhone for prolonged periods in the cold. Once I get into a warmer environment, the battery percentage suddenly drops by massive amounts. This may or may not be related. I'm guessing time actually has nothing to do with it.
     

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