iPhone 4s; Battery drops 17% in 9 hours overnight...normal?

Discussion in 'iPhone' started by will0407, Oct 15, 2011.

  1. will0407 macrumors 6502a

    Joined:
    May 20, 2006
    #1
    I got my 4s yesterday. I set it up and put it on my dock to give it a full charge. It got to 100% although I left it another hour or so. I took it out of the dock, with wifi on (bluetooth off), and went to bed. wake up 9 hours later and it's down to 83%.....is this normal?!!

    17% seems like a big drop considering I've literally done nothing with it, and the iphone 4s battery is supposed to be better. My iphone 4 doesn't drop by that much overnight and that always has bluetooth on.

    Have I done something wrong in terms of the first time charge? I thought batteries these days didnt need a big first time charge
     
  2. Guru101011 macrumors member

    Guru101011

    Joined:
    Jun 23, 2010
    #2
    i am actually seeing some decrease in battery as well :S

    kinda weird
     
  3. Globetrotter macrumors regular

    Globetrotter

    Joined:
    Nov 5, 2007
    Location:
    London
    #3
    4s standby time is 200 hours, whereas 4 was 300 so you're gonna get worse standby time

    only thing i can think of is if you have push enabled for mail

    or, if you have a location based reminder set
     
  4. will0407 thread starter macrumors 6502a

    Joined:
    May 20, 2006
    #4
    Glad I'm not the only one! I'm going to apple to get my iphone 4 replaced later cos the bumper i've been using has left marks on the silver band. So hopefully my sister will be getting a nice new (well refurbed!) iphone 4.

    Just wondering whether to ask about the 4s battery, not that they're likely to do anything at this stage as Ive had it less than a day!

    ----------

    I thought the 4s was meant to have better battery life??

    with a rough calculation, my 4s would have 50 hours of standby time with wifi on. I don't have push notifications on, no bluetooth, nor any reminders set....so thats 50hours with me not touching it! God knows what it'll be when I start using it properly.
     
  5. SavMBP15 macrumors 6502

    Joined:
    Mar 26, 2010
    #5
    Some background app was running, probably using 3G or wifi for data.
     
  6. will0407 thread starter macrumors 6502a

    Joined:
    May 20, 2006
    #6
    Nope, closed everything except siri
     
  7. Caliber26 macrumors 68000

    Caliber26

    Joined:
    Sep 25, 2009
    Location:
    Orlando, FL
    #7
    Siri probably operates all night and records your breathing (and/or snoring) patterns, to better understand and get to know you. ;)
     
  8. senc01a macrumors regular

    Joined:
    May 31, 2007
    #8
    Why don't you try this?
    Close all apps, leave it in flight mode and check. You will probably only use something like 1 - 4% of the battery overnight.
    Then slowly put things back to normal. Check the next night without the flight mode, then with more apps.
    You might also wanna try to remove the email addresses for the test.
    Good luck.

    I had the same thing with the iPhone 4, and I realize that it was cause I had Skype running on the background most of the times.
    GL!
     
  9. HiRez macrumors 603

    HiRez

    Joined:
    Jan 6, 2004
    Location:
    Western US
    #9
    Are you sure it wasn't doing initial WiFi or iCloud backups? That can take a long time and use a lot of juice. Maybe tomorrow night put it in Airplane Mode and see what happens. Then you can narrow it down to communications or something else.
     
  10. wutang61 macrumors regular

    Joined:
    Jan 22, 2011
    #10
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

    Solution: plug your phone in when sleeping
     
  11. flipswitch84 macrumors newbie

    Joined:
    Oct 15, 2011
    #11
    My iphone4s is showing similar results; battery drops quite quickly.I thought it was maybe my phone, but other people here are having the same thing happen.

    When I use it,it drops about 1% or some every 5 minutes.

    Could it be bug in the OS! Or is it typically how the 4s runs?

    One more thing. Is there any difference in charging using a speaker dock than using the power adaptor?

    I am going to let it fully drain then charge it all the way up to see how it goes.
     
  12. HiRez macrumors 603

    HiRez

    Joined:
    Jan 6, 2004
    Location:
    Western US
    #12
    My 4S battery is draining very slowly when idle (on, but slept), so far not even 1% decrease in 3 hours. But, I don't have it activated on the cel network yet, it's just on WiFi. But anyway, drainage like that definitely can't be considered normal. Shut the phone off and reboot it, the try Airplane Mode to see if it makes a difference.
     
  13. tann macrumors 68000

    Joined:
    Apr 15, 2010
    Location:
    Nottingham, England
    #13
    Insane. But listen to this! I went to sleep at half 1AM with the phone @ 70%. Wifi on, 3g on (its always on), bluetooth off, push email on.

    Woke up at 730 and the phone was DEAD. I charged it up to 30% asap, then fell back asleep from 8-9. when I woke up it was still 30%.

    Very confused!
     
  14. will0407 thread starter macrumors 6502a

    Joined:
    May 20, 2006
    #14
    hmm, maybe it needs a few charges to sort itself out.

    Anyway...come on wales!!!
     
  15. tann macrumors 68000

    Joined:
    Apr 15, 2010
    Location:
    Nottingham, England
    #15
    Yeah, that's what I figured :). It's keeping it's % now for ages lol.
     
  16. flipswitch84 macrumors newbie

    Joined:
    Oct 15, 2011
    #16
    Mine charges very quick, even by USB.
    Like in 10 mins it will charge 10%.Is that normal?
     
  17. TM WAZZA macrumors 68000

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    Sep 18, 2010
    Location:
    Hamilton, New Zealand
  18. SOLLERBOY macrumors 6502a

    Joined:
    Aug 8, 2008
    Location:
    UK
    #18
    Like someone said before me, the standby time is 100 hours less, also iCloud and its related features use a bit I think, The main thing to consider is that the battery won't hold a normal charge until a few cycles have gone through it.
     
  19. nfl46 macrumors 603

    Joined:
    Oct 5, 2008
    #19
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

    My battery is dropping quick on my 4S too. But I think it takes a few cycles to work properly.
     
  20. Nikhil72 macrumors 6502a

    Joined:
    Oct 21, 2005
    #20
    The battery definitely takes a few cycles to charge properly, so I'd give it a few days before comfortably deciding it's the battery life it was meant to have. Also, I first noted on my iPhone 4 with iOS 5 that Reminders, when turned on with iCloud, somehow used a great deal of background usage time in the General-Usage tab. Turning that off in the iCloud tab seemed to cut down the usage time and thus the battery drop. I've only had my 4S since last night so I can't tell you how quickly it's dropping yet, but I did notice excess usage time despite not using the phone, so I turned off the iCloud reminders sync. Too bad, I would love to have my iPad show the same reminders.
     
  21. HiRez macrumors 603

    HiRez

    Joined:
    Jan 6, 2004
    Location:
    Western US
    #21
    According to John Gruber, Apple rounds the standby estimates off to the nearest 100 hours (because Apple is just anal like that, they love nice round numbers...except when it comes to .99, $9.99, etc.). So the difference is probably not 100 hours. It could be like the iPhone 4 got 265 and the 4S got 235 or something like that.
     
  22. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #22
    How is that Apple's fault?
     
  23. apprunner macrumors regular

    Joined:
    Jun 26, 2010
    #23
    Also try to do a hard reset. That fixed a battery drain issue in my 4 once.
     
  24. benjamin9876 macrumors member

    Joined:
    Jul 7, 2009
    #24
    last night i slept at 2.30am, after a full charged 100%, today wake up at 11.30am. it only 53% left?!!!! that is unacceptable.
    wifi on. 3g on. bluetooth off, push on. And no App on background running!!!

    this is kind of ridicious . since my 3gs do way better than it.:mad:
     
  25. BiscuitsNGravy macrumors member

    Joined:
    Oct 8, 2011
    #25
    Last night I went to sleep with my phone at 100%

    This morning I woke up with it at 100% Why, because I plugged it in. :)


    But, I notice the battery is draining fairly quick, but it's brand new and really hasn't had many cycles. Probably need to calibrate.

    Just give it some time before having a melt down. ;P
     

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