ipad2 + IOS5 = reduced battery life

Discussion in 'iPad' started by Derek87, Oct 26, 2011.

  1. Derek87 macrumors 6502

    Joined:
    Jan 29, 2009
    #1
    i have noticed a significant reduction in battery life for my ipad2 after updating to IOS5.

    the notable thing is that it seems to be losing a lot of battery through background usage while in "stand by" mode.

    ii've followed this issue in the iphone 4 forum where a lot of suggestions have been made (reset network settings, turn off all notification/location services, turn off bluetooth, turn off icloud backup, turn off ping), and in the end i have gotten my Iphone4 back to where it was battery life wise for iOS4. that hasn't been the case for my ipad2.

    i lose about 10% per day minimum (it was up to 25-30% before doing the things listed above in parentheses) when nothing is running in the background (ie, reboot and just let it sit there)

    i'm tempted to refresh the whole things from scratch but that of course will wipe out things like my scores for Asphalt Adrenaline and other app info. :\

    anyone else have this problem? suggestions beyond what i have listed above?

    thanks!
     
  2. whooleytoo macrumors 603

    whooleytoo

    Joined:
    Aug 2, 2002
    Location:
    Cork, Ireland.
    #2
    Mine certainly seems to have much worse battery life too now. I didn't do any exact measurements on iOS4 though, so I've no exact comparison.

    Before, I could spend a couple of hours playing games & listening to music, and the battery would go down by perhaps 25% maximum. Now on iOS5, with the same period of activity, the battery goes down by almost 50%.
     
  3. ruvil macrumors regular

    Joined:
    Dec 26, 2010
    #3
    I think the battery has become much better...
     
  4. mrboult macrumors 6502

    mrboult

    Joined:
    Jul 29, 2008
    Location:
    London, England
    #4
    If you have enabled wifi syncing with iTunes on your mac, and your iPad is spending a lot of time on the same wifi network as your computer with iTunes open. . . . . Then this will be eating your battery, as with wifi sync on the wifi on your iOS device never fully goes to sleep.

    I have also found uder ios 5 that my iPhone (maybe iPad too I'm not sure) was using location services constantly for 'local time updates' or something. So I turned that off too.
     
  5. Steelgrave macrumors member

    Steelgrave

    Joined:
    Apr 2, 2011
    #5
    Same. On both iPad and iPhone my battery life has improved.
     
  6. Derek87 thread starter macrumors 6502

    Joined:
    Jan 29, 2009
    #6
    interesting. i'll try shutting of the wifi sync to see if that helps as i didn't think about that as a possible culprit. i turned off all of my system location services and that helped my iphone immensely although i wonder if the compass cal being off will ultimately influence the GPS accuracy when using mapquest to navigate)
     
  7. Dhelsdon macrumors 65816

    Dhelsdon

    Joined:
    Feb 5, 2010
    Location:
    Canadian Eh!
    #7
    My iPad2 is running on iOS5 and the battery life in incredible, I don't use location services or wifi-sync but I don't have anything to compare it to but it has been nothing short of excellent for me.
     
  8. Pete the Geek macrumors regular

    Joined:
    Mar 5, 2011
    Location:
    Sioux Lookout
    #8
    Last week I was using my iPad 2 for 9 hour days at a conference. At the end of one day I calculated that my battery would last for at least another 6 hours (15 total). At the time I had iCloud sync on (I have since turned it off), but no wifi sync. This battery life matches my experience before iOS 5.
     
  9. mrboult macrumors 6502

    mrboult

    Joined:
    Jul 29, 2008
    Location:
    London, England
    #9
    I think turning off all Location Services is a bit extreme! Certainly for me, a lot of my apps depend on knowing my location.

    I have looked at my iPhone and found the issue I was eluding to earlier. . .

    In Settings>LocationServices>SystemServices (at the bottom) . . . . You will find "Setting Time Zone"!!!! Now this seems to keep the location services on PERMANENTLY!!! You would not know this because it is only this far into the menu system (same page) where you find the option to show Location Services in the Menu Bar when they are active!!

    Hope that makes sense!!!

    I find it all a bit weird myself. To have the fact that your Location Services (by default) are permanently active so hidden from the user.
     
  10. SushiX37 macrumors newbie

    SushiX37

    Joined:
    Dec 7, 2010
    Location:
    Omaha
    #10
    It's been the exact opposite for me. Battery life has improved dramatically on my iPad since the upgrade. No changes made either.
     
  11. fhall1 macrumors 68040

    fhall1

    Joined:
    Dec 18, 2007
    Location:
    (Central) NY State of mind
    #11
    I haven't really timed it, but since upgrading to iOS5 my battery time is certainly no worse than it was before.
     
  12. spiderman0616 macrumors 68030

    spiderman0616

    Joined:
    Aug 1, 2010
    #12
    I'm still getting 4 full days of battery life out of my iPad 2 after upgrading to iOS 5. This is about the same as what I was getting before upgrading and I use my iPad for EVERYTHING.
     
  13. TLewis macrumors 65816

    Joined:
    Sep 19, 2007
    Location:
    left coast, US
    #13
  14. Derek87 thread starter macrumors 6502

    Joined:
    Jan 29, 2009
    #14
    a little better since i shut off wifi sync as suggested but still trickling away probably 10% per day in standby...this was closer to 2-3% for me with iOS4.

    i'm going to look into seeing if i can use my old iphone file manager program to keep my game score files backed up and then perhaps do a clean reset of the ipad2 (ie, start from scratch) to see if i ca nget things back to where they should be.

    what are people seeing for their standby time battery consumption?

    derek
     
  15. randymac88 macrumors regular

    Joined:
    Aug 4, 2008
    #15
    Wifi sync is supposed to only activate when plugged in, so how is this possible?
     
  16. Naz927 macrumors newbie

    Joined:
    Oct 28, 2011
  17. TM WAZZA macrumors 68000

    Joined:
    Sep 18, 2010
    Location:
    Hamilton, New Zealand
    #17
    In my experience battery has actually gone better. Not that it was bad on iOS4, I was getting 2 days.
     

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