Usage increases dramatically while sleeping...why?!?!

Discussion in 'iPhone' started by GNice, Jul 26, 2008.

  1. GNice macrumors 6502

    Aug 7, 2007
    So I go to bed, hit the sleep wake button last night and take note of the usage hours. Grab my my iPhone 3G is morning and notice the battery is "in the red". could that be? Well, I look at the "Usage" and it's increased by several hours!:eek::eek::eek:

    Is that normal? Anyone experiencing the same? Sorry if I missed this in the myriad of threads about battery life. Generally speaking I love my iPhone, but I find this odd.

    BTW, turned Push off (Fetch hourly was set), Locations Services off, 3G off...only WiFi was on during that time.
  2. Arkanok macrumors 6502a


    Feb 13, 2007
    Hmm.. Not too sure why it would drain that much. Generally overnight my iPhone drains a bit, but not enough to go into the red. I also have push off.

    One thing I personally do -- because I don't get phone calls during the night, nor do I want calls during the night -- is turn the "Airplane Mode" on, so that the signal goes off, but I can use the other stuff on the phone, mostly, the alarm. By doing that, the phone barely drains while I'm sleeping. I realize it takes a few steps to do, but hey, it keeps my phone from draining a lot while I'm really not using it anyways.
  3. OllyW Moderator


    Staff Member

    Oct 11, 2005
    The Black Country, England
    I've had it happen, but only once in the two weeks I've had the iPhone.

    I've got no idea why it did it :confused:
  4. atiffarooq macrumors 6502


    May 27, 2006
    I had this happen when I initially got my iPhone. I found that the reason behind this was I had gone into my email and it had started connecting but was taking ages so I pressed the home button and thought that this would kill the process. I was wrong though, because whenever I went into email it would still show as connecting. My usage and standby times would also increase together (e.g. 17 hours standby, 17 hours usage). I hard killed the mail app (hold home button for 7 seconds or so) and this fixed the problem.

    Just for reference, I had 2 mail accounts set up, one was my GoogleMail and the other was my ISP mail account (BT).
  5. queshy macrumors 68040


    Apr 2, 2005
    My usage and standby times are increasing together, too. I'm pretty sure it's not the mail app. I wiped the iPhone and then restored from backup and same problem :eek: any ideas?
  6. spinstorm macrumors 68000

    Sep 14, 2007
    Am I the only one that charges my phone while im sleeping?

    I mean I have a plug next to my bed - so I plug it into the mains and let it charge.

    It takes all of 2 seconds and I have a full battery in the morning!

    Fancy that!? wow!
  7. RITZFit macrumors 65816


    Sep 16, 2007
    In my Corner
    wow, glad I'm not alone. My phone started doing this since I first upgraded to 2.0. I almost constantly wake up to a drained battery and high usage times. I thought about the push mail but I never had a problem w/ it on lower OS versions :confused:
  8. ivtecDOu macrumors 6502


    May 24, 2008
    now why would someone do that doesnt make any sense at all.:rolleyes:
  9. heyp macrumors 6502

    Jan 29, 2008
    yeah i'm experiencing the same here too... i also have the fetch at an hour set... maybe it's something to do with that?
  10. danny_w macrumors 601

    Mar 8, 2005
    Austin, TX
    I've experienced the same thing since upgrading my 1st gen to 2.0 firmware, but I haven't been able to find a pattern yet. I've tried disabling push, activesync, etc. to no avail. If anybody can find a solution I would be very happy to know what it is. Perhaps it is just another one of the myriad of 2.0 bugs.
  11. DenniZ macrumors 6502a

    Oct 5, 2007
    Liverpool, UK
    It's probably a App running in the background, if you rebooted your phone chances are the usage would stop going up.
  12. cantankerously macrumors regular

    Jul 11, 2008
    Same thing happened to me once. There was a program running in the background because you can see the little flower icon working. This kiiled my battery easy after a night of 6+ hours of usage/standby.

    After that it never happened again. I am back to my almost full battery with 1hour usage and 12 hours standby.
  13. d21mike macrumors 68040


    Jul 11, 2007
    Torrance, CA
    I have seen this problem on v1 iPhone as well as the new iPhone 3G (just upgraded last weekend). Honestly can't say if it was dependant on a particular firemare release or not, but probably. It happened on both my Wife's v1 and mine. After upgrading 1 of our phones last weekend to the 3G (mine) it happened to it (battery also drained fast during the day as well). I have since upgraded to the firmware 2.01 and have not seen the problem since. Last night I ran with 3G, Location Services, WiFi, full brightness (no auto) and now I have 29 min usage and 9 hours standby and I have been up for about 1 1/2 hours. I took it off the charger when I went to bed.
  14. dixieD macrumors newbie

    Aug 6, 2008
    I agree since upgrading to 2.0.1 the usage seems to be more correctly reported, and my battery life has improved.
  15. danny_w macrumors 601

    Mar 8, 2005
    Austin, TX
    I don't have any 3rd party apps on my phone, although I did have in the past. I may try upgrading tp the 2.01 firmware.
  16. cubedweller macrumors 6502

    Nov 25, 2007
    It coud be WiFi

    I had this problem with my original iPhone occasionally. It appears that the WiFi doesn't disconnect always when putting the phone to "sleep" and was draining the battery -- I woke up with it dead after going to sleep with a full charge. I've noticed this with the phone just sitting on my desk -- that the WiFi connection appears to still be active even when the phone is in "sleep" mode -- in fact, you can check your router logs to verify this.

    I haven't experienced this with my iPhone 3G. In fact, battery life has been surprisingly good: 4-5hrs Usage / 1-1.5 Days Stand By with 3G and Location services on and Fetch set for 15 minutes.

    Try manually disabling WiFi and see if your battery still drains. My guess is it won't.

  17. danny_w macrumors 601

    Mar 8, 2005
    Austin, TX
    Did you see this before 2.0? I have never had my battery drain so fast until I installed 2.0 software.
  18. cubedweller macrumors 6502

    Nov 25, 2007
    This was pre-2.0. Maybe even pre-1.1.4. It didn't happen very often. Certainly not enough for me to take it into Apple. Just something that I noticed. I haven't seen it happen on 2.0 yet.
  19. heyp macrumors 6502

    Jan 29, 2008
    has anyone determined the culprit? i was meaning to experiment last night but i forgot... but it happens consistently... i have wifi on, 3G on, bluetooth and location services off... maybe i'll just start turning the phone off at night
  20. PoitNarf macrumors 65816


    May 28, 2007
    Northern NJ
    I've had this happen with my 1st gen iPhone with pretty much every software release and also on my 3G. Doesn't happen all the time, but regularly enough that it's annoying.
  21. heyp macrumors 6502

    Jan 29, 2008
    so i shut off wifi last night and lo and behold, i didn't get the dramatic increase in usage... however, my mail set at hourly fetch was not updated which i found interesting because it will update during the day while it's sleeping with wifi turned off
  22. danny_w macrumors 601

    Mar 8, 2005
    Austin, TX
    Wifi has nothing to do with my problems. I shut off wifi and it continued to get the increased usage.
  23. snverhallen macrumors 6502a

    Oct 17, 2007
    I'm experiencing these problems as well on a 2.1 iPhone 3G. But what I don't understand is that this problem should go away after a restore right? If it doesn't does that mean it's a hardware issue, but how could be hardware?

    I'm confused as to what the problem here is... software or hardware.

  24. EthanNixon macrumors 6502a


    Sep 30, 2007
    New Jersey
  25. mappyman macrumors regular

    Jul 26, 2008
    It happens when an App crashes.

    Launch an app and if it fails to launch it dumps you to the springboard. That's the moment the battery will start draining.

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