iPad 4.2 GMb Draining Battery

Discussion in 'iPad' started by PoisonScorpion, Nov 19, 2010.

  1. PoisonScorpion macrumors member

    Joined:
    Oct 6, 2009
    #1
    When using 3.2 I had no battery problems. But now I lose about 30% overnight from doing nothing (obviously) on 4.2 GMb :confused:

    Is this a beta bug or is it something isolated?
     
  2. Pinger macrumors regular

    Joined:
    Oct 12, 2010
    Location:
    Northeast
    #2
    I'm finding much better battery life with iOS 4.2.1 GM then with iOS 4.2GMb b. I updated to iOS 4.2.1gm last night and to be honest today is the longest I've gotten out a fully charged battery ever(including original 3.2). Unfotunitely I can't comment on the overnight discharge because I plug my iPad in to charge when go to bed. But tonight I will not and see if it drains while idle. Let you know tomorrow how it goes..
     
  3. maddav macrumors 6502

    maddav

    Joined:
    Jul 3, 2004
    Location:
    Manchester, UK
    #3
    Just got 4.2.1 yesterday, and tested out the overnight drain: 0%. With no applications open, there was no battery drain. I'll try it out tonight with some open.
     
  4. Pinger, Nov 20, 2010
    Last edited: Nov 20, 2010

    Pinger macrumors regular

    Joined:
    Oct 12, 2010
    Location:
    Northeast
    #4
    I made sure all apps were off and I was surprised to find I lost 11% through the night. I did not hit the sleep button when retiring it for the evening, I just let the iPad's screen go black and let it go at that(guess I'll have to see if it is different if I hit the sleep button tonight).

    Just to reiterate I'm running iOS 4.2.1GM
     
  5. jonnyb macrumors 65816

    Joined:
    Jan 21, 2005
    Location:
    London, UK
    #5
    I had exactly the same thing with 4.2GMb. Went from 60-something % to early 40s overnight. Updated to 4.2.1 and it's back to normal.
     
  6. Pinger macrumors regular

    Joined:
    Oct 12, 2010
    Location:
    Northeast
    #6
    I hit the sleep button before retiring the ipad for the night last night and again the battery lost 11% sitting idle through the night.. Very strange, not sure what could be the reason for this but I guess I'll just stay with my practice of plugging it in to charge overnight from now.
    I wish I checked this when I had iOS 3.2 installed, can't say for sure if it's iOS 4.2.1 causing it.. I'm kind of disappointed in this though.
     
  7. Pinger macrumors regular

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    Oct 12, 2010
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    Northeast
  8. jrboddie macrumors newbie

    Joined:
    Apr 5, 2010
    #8
    I was afraid of this. My iPod Touch 2nd generation has had very bad battery life since upgrading to iOS 4. So much that I have to put the iPod into airplane mode overnight to keep it from discharging. And I don't even get multitasking!

    I will soon upgrade my iPad to iOS 4.2 and hope that these observations are wrong. The battery life is already marginal and now if this upgrade makes it worse, I will be very upset. But I am afraid that this multitasking 'feature' keeps something running in the background all the time--consuming the battery.

    Multitasking--unnecessary feature.
     
  9. Pinger macrumors regular

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    Oct 12, 2010
    Location:
    Northeast
    #9
    Your iPad battery is "marginal" with iOS 3.2??
     
  10. jrboddie macrumors newbie

    Joined:
    Apr 5, 2010
    #10
    I recharge every day. That is marginal to me.

    I don't monitor the percentage on the battery meter because it is too disconcerting to watch it tick down while web browsing. The 20 % remaining warning is bad enough. I understand that eith iOS 4 the warning is at 5%. Maybe that is better.

    Anyway, I sure hope that the upgrade does not mean that I wake up toi a dead iPad when there was plenty of life in the battery before turning it off. This is the situation with my iTouch running iOS 4.
     
  11. Pinger macrumors regular

    Joined:
    Oct 12, 2010
    Location:
    Northeast
    #11
    Ahhh, I was worried you were getting bad battery life using 3.2,,,
    I got over 10 hours with iOS 3.2, now with multitasking I seem to get less but that's understandable.
     
  12. CrAkD macrumors 68040

    CrAkD

    Joined:
    Feb 15, 2010
    Location:
    Boston, MA
    #12
    had to have been an issue with your update or install or screen lock settings. I had gmb for a week up til today. i didnt charge it the entire time. from sunday to sunday i went from 100% to 34% now thats some great battery life.
     
  13. Pinger macrumors regular

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    Oct 12, 2010
    Location:
    Northeast
    #13
    Installed the "Official" iOS 4.2.1 tonight, we'll give it another try.... :)
     
  14. Pinger, Nov 23, 2010
    Last edited: Nov 23, 2010

    Pinger macrumors regular

    Joined:
    Oct 12, 2010
    Location:
    Northeast
    #14
    I didn't lose 1% throughout the night.. hit the sleep button before retiring the ipad last night with 52% and 9 hours later still at 52%. Nice
    I guess it was a glitch in my GM version, the official ios 4.2.1 didn't allow for any battery loss while in sleep mode. Thank goodness :)
     
  15. jrboddie macrumors newbie

    Joined:
    Apr 5, 2010
    #15
    Great. Thanks for the report. I will probably update my iPad today.
     

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