Once and for all...does having auto brightness off help battery life?

Discussion in 'iPhone' started by The Game 161, Sep 18, 2011.

  1. The Game 161 macrumors G5

    The Game 161

    Joined:
    Dec 15, 2010
    Location:
    UK
    #1
    I have it off but generally does having it off help your battery life and does the same apply for the ipad as well? As it was mentioned in the ipad forum.
     
  2. leebroath macrumors 6502

    leebroath

    Joined:
    Jul 26, 2010
    Location:
    Scotland
    #2
    Yes 100%

    The phone is obviously having to power a certain function to auto correct the brightness

    Switching this off the phone doesn't have to use any power to control anything

    So yes I would say it would use up more power, how much is a grey area

    It's not going to be that much imo
     
  3. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #3
    If I have auto brightness turned off and have my brightness at 25% even when I am outdoors...

    While you have auto brightness turned on and the auto brightness bumps the brightness to 80% while outdoors...

    Which one of us is going to have longer battery life?
     
  4. kingdLo macrumors 6502

    Joined:
    Mar 20, 2009
    #4
    But it also dims it down too, so it works both ways
     
  5. PNutts macrumors 601

    PNutts

    Joined:
    Jul 24, 2008
    Location:
    Pacific Northwest, US
    #5
    It depends on if he goes outside / takes his phone out while outside) or anywhere that causes his screen to brighten.

    The brightness of the screen determines current drawn on the battery (battery life).
     
  6. ap3604 macrumors 68000

    Joined:
    Jan 11, 2011
    #6
    Exactly my point ;)

    OP asked a silly question that really just depends on how he, personally, uses his device and if he is in a bright environment or not. No one else can answer this for him...
     
  7. The Game 161 thread starter macrumors G5

    The Game 161

    Joined:
    Dec 15, 2010
    Location:
    UK
    #7
    It's not a silly question at all when quite a few have asked the same thing.

    When inside and using your phone inside...not outside it is a fair question. Which is why it was brought up by others.
     
  8. rruben macrumors member

    Joined:
    Sep 5, 2011
    #8
    Turning on auto-brightness reduces your battery life compared to when you put it on the minimum with auto-brightness off.

    Right?
     

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