4.0 Battery Drain?

Discussion in 'iPhone' started by dissdnt, Jun 9, 2010.

  1. dissdnt macrumors 65816

    dissdnt

    Joined:
    Aug 3, 2007
    #1
    I put 4.0 on the other day and I've noticed the battery drains a lot faster then usual. Anyone else experiences this? Or is this placebo because I'm using it more hehe.
     
  2. dseig001 macrumors member

    Joined:
    Apr 28, 2009
    #2
    I'm pretty sure it's placebo, mine's getting better battery life.
     
  3. JTSmeed macrumors member

    Joined:
    Jun 25, 2009
    #3
    Same here

    I updated my 3GS to 4.0 GM and have really bad battery life. The first full charge got me almost 7 hours of standby with about an hour of talk and wifi usage. With this type of usage on 3.x, i could have easily gone a couple of days between charges. I set my only email address that was using fetch to manual and I left three addresses as push. This improved things a little bit. I took the phone off the charger and left it sitting on standby for about 5.5 hours. This drained my battery to about 65%. Still, this is not acceptable. I have a 12 hour road trip coming up in less than a week and don't (yet) have a car charger.

    If anyone has any suggestions, I'd greatly appreciate them.
     
  4. NT1440 macrumors G4

    NT1440

    Joined:
    May 18, 2008
    Location:
    Hartford, CT
    #4
    Downgrade or reinstall.
     
  5. pugnut macrumors 6502a

    Joined:
    Jul 1, 2007
    #5
    Download and reinstall and set up as a new phone- do not restore from backup. Alos try resetting network settings
     
  6. Opie macrumors 6502a

    Opie

    Joined:
    Jun 17, 2008
    #6
    I restored from backup after installing 4.0 on my 3gS and mine has stayed the same with maybe a little improvement.
     
  7. JTSmeed macrumors member

    Joined:
    Jun 25, 2009
    #7
    Yeah. I did reset network settings. I was kind of hoping to not set up as new phone. Will I lose my app data by doing this, such as game states and things like that?
     
  8. Cabrewolf macrumors member

    Joined:
    Apr 2, 2003
    #8
    I can add credibility to this. I upgraded to iOS 4 GM yesterday and was just telling my wife that I think my battery on my 3Gs is wearing out all of a sudden because I got really bad battery life today. It didn't occur to me that it could be iOS 4 until I read this thread - hence it is likely not placebo effect.

    I'm not going to worry about it since I'll be getting the new phone, but I may clean install before selling this one.

    Wolf
     
  9. ugp macrumors 65816

    ugp

    Joined:
    Jan 7, 2008
    Location:
    Inverness, Florida
    #9
    Maybe it't because the 3rd Party Apps are not setup for Multi-Tasking yet. I noticed they remain in the bottom Apps running bar. You can close them manually by holding down on their icon. Not sure if this will help. I did notice my battery drain faster today than normal but I also think they were working on towers in my area and my phone was working harder for signal than usual.
     
  10. bradg33 macrumors member

    Joined:
    Mar 13, 2010
    #10
    Multitasking = more processor usage = more battery drain.
     
  11. pugnut macrumors 6502a

    Joined:
    Jul 1, 2007
    #11

    Yes, but it will make things a lot better IMO.
     
  12. NT1440 macrumors G4

    NT1440

    Joined:
    May 18, 2008
    Location:
    Hartford, CT
    #12
    This makes perfect sense! Improper multitasking would definitely kill battery.
     
  13. mcdj macrumors G3

    mcdj

    Joined:
    Jul 10, 2007
    Location:
    NYC
    #13
    Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7)

    Umm there is no multitasking yet. And apps in the subdock are *not* running in the background.

    I saw a 20-30% decrease today after installing the GM yesterday.
     
  14. Ivan P macrumors 68030

    Ivan P

    Joined:
    Jan 17, 2008
    Location:
    Home
    #14
    I must be one of the few that's getting better battery life. I restored mine from a backup.
     
  15. JTSmeed macrumors member

    Joined:
    Jun 25, 2009
    #15
    Sorry to quote my own post; however, I have seen some results after disabling notifications. Since my last post, about three hours ago, I disabled all notifications and left the phone on standby. Since then, I remained at 54% battery power. So, it might be a particular app or just notifications in general that aren't playing nicely with OS4 GM. I'll add any updates if the situation changes or I can determine that something in particular is the culprit.
     

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