What? 10% in 10h of airplane mode?

Discussion in 'iPhone' started by Ultra AleM, May 16, 2015.

  1. Ultra AleM macrumors 6502a

    Ultra AleM

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    Jun 22, 2012
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    Italy
    #1
    Hello, guys! 10 hours ago I left my iPhone 5 (iOS 8.3) on airplane mode. I just picked it up and it went from 26% to 16%. Is... this normal?!
     
  2. Jtludwig macrumors 6502

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    Mar 24, 2012
    #2

    Yes. It was still powered on right? Why would you not expect it to use power? It just consumes it at a lower rate than it would otherwise.
     
  3. duaneu macrumors 6502a

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    #3
    That's only 1% per hour...doesn't seem all that bad.
     
  4. wannabepcuser macrumors member

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    May 25, 2013
    #4
    To fix problems like this, I run the phone until it turns off . Then let it charge to 100% without using it.. Rinse and repeat a couple of times.


    I am guessing we need to retrain the battery periodically.
     
  5. Ultra AleM, May 17, 2015
    Last edited: May 17, 2015

    Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    #5
    It used not to drain while in airplane mode. 2-3% in the worst case...
     
  6. Jtludwig macrumors 6502

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    Mar 24, 2012
    #6

    Sure it is. The phone is still turned on, just not transmitting/receiving.
     
  7. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    #7
    And why it didn't drain while in airplane mode time ago? Maybe before iOS 8...
     
  8. Jtludwig macrumors 6502

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    Mar 24, 2012
    #8

    It did. You just didn't notice until now.
     
  9. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    #9
    Nope, I do remember leaving it at 60% (example), going to bed and finding it at 58-59% in the morning...
     
  10. Hot12345 macrumors 6502

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    Mar 1, 2015
    #10
    Maby that you have apps running in the background, and maby you have in the general settings "apps running on background" on.
     
  11. chambone macrumors 6502a

    chambone

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    #11
    1% an hour is too much with regular sleep, let alone airplane mode.

    Check your battery health first.
     
  12. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    #12
    200 cycles, 97% capacity.
     
  13. scaredpoet macrumors 604

    scaredpoet

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    Apr 6, 2007
    #13
    Any process running in the background uses energy. It's possible that an app was doing something this go-round, or worse trying to access data while the phone was in airplane mode (and not reacting well when it couldn't).

    If you;re not using your phone for a few hours and don't want it to use any energy at all, shut it off.
     
  14. ucfgrad93 macrumors P6

    ucfgrad93

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    Colorado
    #14
    Agreed. The phone still uses power in airplane mode.
     
  15. C DM macrumors Westmere

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    Oct 17, 2011
    #15
    Usually not at the rate of something like 1% an hour (while it's asleep in airplane mode).

    ----------

    Coincidentally just had an iPhone 5 (with an older worse battery) that I fully charged and left for overnight on airplane mode--just checked it about 12 hours later and it's still at 100%.
     
  16. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    #16
    I knew it ! So I do have a problem. Did you have apps running in the background?
     
  17. kolax macrumors G3

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    Mar 20, 2007
    #17
    View the battery usage for the last 24 hours and see if there is an app that's trying to do things in the background but can't because of no network.

    Though a friend has an iPhone 4s running iOS 8.3 and in aeroplane mode it drained more than just 1% an hour.
     
  18. e93to macrumors 6502a

    e93to

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    Jan 23, 2015
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    Toronto
    #18
    I left my iPhone 4 on airplane mode for 3 days. It drained only 3% (it already had 11 minutes of YouTube usage).

    I also have an iPhone 5S (loaded with apps that use location services and notifications). During 8 hours of sleep time, the phone drains anywhere between 2 - 3%.

    Maybe certain became corrupt with recent update. Like someone said, look at the battery usage percentage, and find out which is app is using most battery.
     
  19. Shirasaki macrumors 603

    Shirasaki

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    May 16, 2015
    #19
    I have my iPhone 4 on airplane mode for as long as 12 days, without any further use.

    However, I can only use it 2 hours in total, in normal use. I can only use it less than an hour if I use it heavily. Relatively not tolerable. Performance is also another issue.
     
  20. iPad Retina macrumors 6502a

    iPad Retina

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    Canada
    #20
    It might be your battery

    Is your phone eligible for the battery replacement program
     
  21. Ultra AleM thread starter macrumors 6502a

    Ultra AleM

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    Italy
    #21
    It has been replaced 6 months ago. The battery has a 98% capacity.
     
  22. ET iPhone Home macrumors 68040

    ET iPhone Home

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    Oct 5, 2011
    Location:
    Orange County, California USA
    #22
    Actually, I do the same. I place my iPhone 5S on Airplane Mode overnight and keep it that way for well over 10 hrs and still have 100%. It's over 1 year old if that helps.
     
  23. ibergu macrumors newbie

    Joined:
    Jul 27, 2010
    #23
    I'm having similar battery issues.

    I have a 5S (purchased at launch), that had been working perfectly normal up until recently.

    I went to bed with battery level of 97%, put it on airplane mode, and awoke with a battery level of 60%. I tested it a few other times with similar results. In the past, I would lose max 2-3% over a 7-8 hour period on airplane mode.

    I checked the battery usage in settings and nothing appeared to be out of the norm, but obviously losing 37% on airplane mode is abnormal. Is it a new app I downloaded? A new widget I'm using? I can't tell.

    I'm thinking that I'll need to "restore as new" and see if that helps, but I hate to lose all of my imessages, app settings, game progress, etc.
     
  24. Paddle1 macrumors 68030

    Joined:
    May 1, 2013
    #24
    100% seems to last longer than other percentages to me probably do to some kind of overcharging or buffer, so if you're comparing it to that it might be why.
     

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