Why does my iPad2 battery last 6 hours?

Discussion in 'iPad' started by Denis54, Sep 18, 2011.

  1. Denis54 macrumors member

    Joined:
    Mar 24, 2011
    #1
    The battery of my iPad 1 WiFi used to last about 10 hours.

    I just bought an iPad 2 WiFi + 3 G and it's battery last 6 hours. I do not have a SIM card in it.

    Is it normal for the iPad 2 battery to last only 6 hours?

    Is there anything I can do to improve the situation?

    Do the GPS and the 3G (with no SIM) functions decrease battery life?
     
  2. palpatine macrumors 68040

    Joined:
    May 3, 2011
    #2
    no. it is not normal.

    yes. tell us more about what you are doing :)

    yes. i would think so. anytime your ipad is searching for a signal (wifi, bluetooth, 3g, etc.) it is expending power. why don't you play around with it? for example, turn airplane mode on and then turn wireless on (this will keep everything else off). see how long your battery lasts then under the same usage. turning off locations and push will also help extend battery life.
     
  3. Mlrollin91 macrumors G4

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #3
    If you are not using bluetooth turn it off, if you are not using 3G, turn off cellular data, you will see a huge increase in battery life, even if there is no sim in there. Its wasted power in the background.
     
  4. Denis54 thread starter macrumors member

    Joined:
    Mar 24, 2011
    #4
    Bluetooth is off

    Cellular data is gray and I cannot access it. I would think it means it is off. Am I right?

    I use my iPad to surf the Internet, read my emails and read an online newspaper. Exactly the same thing I used to do with my iPad 1.
     
  5. ditzy macrumors 68000

    ditzy

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    Sep 28, 2007
  6. Denis54 thread starter macrumors member

    Joined:
    Mar 24, 2011
    #6
    My iPad 2 screen is significantly brighter than my Ipad 1 screen.

    However they both have the default settings. The brightness bar is half way between maximum and minimum.
     
  7. v654321 macrumors member

    Joined:
    Aug 6, 2011
    Location:
    Vilvoorde, Belgium
    #7
    You might want to check whether your auto brightness is disabled. Of yes, enable it.
     
  8. phpmaven macrumors 68040

    phpmaven

    Joined:
    Jun 12, 2009
    Location:
    San Clemente, CA USA
    #8
    I'm assuming that you've done a hard reset. I occasionally get a process running in the background that drains battery life. Another killer is a email account that has the wrong password and it will keep trying to login over and over and drain the battery. It won't necessarily pop up an error.

    There is definitely something wrong as you should be getting hours more battery life than that.
     
  9. WildGuess macrumors regular

    Joined:
    Apr 29, 2010
    #9
    My understanding is auto brightness should be off for max battery life.
     
  10. Denis54 thread starter macrumors member

    Joined:
    Mar 24, 2011
    #10
    Auto-brightness is set to ON as it was in my iPad 1. In as far as I know this the default setting.

    How do you do a hard reset?
     
  11. WildGuess macrumors regular

    Joined:
    Apr 29, 2010
    #11
    Hard reset just means turning it completely off, then back on. Before MRoogle went defunct all of the recommended posts said turn auto-brightness off to save iPhone batteries. iPad should be the same.
     
  12. The Game 161 macrumors G5

    The Game 161

    Joined:
    Dec 15, 2010
    Location:
    UK
    #12
    I wasn't aware that turning auto brightness off mattered too much.

    Having auto brightness off helps your battery life?
     
  13. dannn macrumors regular

    Joined:
    Feb 3, 2008
    #13
    Yes, it will conserve your battery. Now please tell us, is your battery lasting longer now?
     
  14. neutrino23 macrumors 68000

    Joined:
    Feb 14, 2003
    Location:
    SF Bay area
    #14
    If you are still having a problem take it to an Apple store and let them check it out. They have some tools to view what apps have been sucking up time and battery. Also, if this is a hardware problem better to let them identify quickly so they'll accept it as a factory problem rather than a wear and tear issue.
     
  15. anjinha macrumors 604

    anjinha

    Joined:
    Oct 21, 2006
    Location:
    San Francisco, CA
    #15
    That's not a hard reset. A hard reset is rebooting it by pressing the home button and the power button at the same time until ou see the Apple logo.
     
  16. DoFoT9 macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #16
    having auto-brightness ENABLED will mean that the brightness will regularly reach maximum when in bright environments (in the sun, in the subway, etc). only when it is in dark environments will the brightness be turned down.. so i always prefer manually changing the brightness for best battery efficiency.

    OP: i would try this. :)

    and fwiw, a hard reset wont really change anything
     
  17. WildGuess macrumors regular

    Joined:
    Apr 29, 2010
    #17
    Sometimes when something goes wrong (usually during a failed jailbreak) the phone is unresponsive and cannot be turned off. A hard reset just forces it to restart. Turning it off and on does the same thing.
     
  18. porcupine8 macrumors 6502a

    Joined:
    Mar 2, 2011
    #18
    I keep my brightness down around 25%. it's plenty bright for most environments and saves battery life significantly.
     
  19. Denis54 thread starter macrumors member

    Joined:
    Mar 24, 2011
    #19
    Yesterday I did the follwing changes:

    Switched PING to OFF
    Turned location services to OFF
    Switched FETCH new Data to OFF
    Charged my battery to 100%

    This morning I turned Auto-Lock to never and let my iPad run all day. I got a battry life of 7.40 hours.

    I used my iPad for about half of that time and let it idle the rest of the time
     
  20. Perihelion macrumors regular

    Joined:
    Jun 4, 2010
    #20
    I experienced something similar when I tried jailbreaking. Battery life went to crap and my 3G usage went through the roof. Updated to the most recent official IOS version and battery life / 3G usage returned to normal.
     
  21. anjinha macrumors 604

    anjinha

    Joined:
    Oct 21, 2006
    Location:
    San Francisco, CA
    #21
    I would take your iPad to the Apple Store. It's not normal that cellular data is greyed off.
     
  22. bluesteel macrumors 6502

    Joined:
    Apr 5, 2007
    Location:
    Earth
    #22
    if its greyed out, then turn cellular data "OFF" in Settings/Cellular Data.
     
  23. anjinha macrumors 604

    anjinha

    Joined:
    Oct 21, 2006
    Location:
    San Francisco, CA
    #23
    If it's greyed out then you can't turn it off or on.
     
  24. bluesteel macrumors 6502

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    Apr 5, 2007
    Location:
    Earth
  25. TheMacBookPro macrumors 68020

    TheMacBookPro

    Joined:
    May 9, 2008
    #25
    Cellular Data is greyed out when there's no SIM inserted, which the OP said was the case.

    Rather than the on/off switch it just says No SIM.
     

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