Full battery charge 97%?!?!

Discussion in 'iPhone' started by sidefx, Oct 17, 2011.

  1. sidefx macrumors regular

    Joined:
    Jan 18, 2010
    #1
    The past three mornings taking my phone off the charger the battery percentage has only been 97%.

    Anyone else noticing this?
     
  2. iBreatheApple macrumors 68020

    iBreatheApple

    Joined:
    Sep 3, 2011
    Location:
    Florida
    #2
    My Air often does this on and off.
     

    Attached Files:

  3. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
  4. Don Kosak macrumors 6502a

    Don Kosak

    Joined:
    Mar 12, 2010
    Location:
    Hilo, Hawaii
    #4
    You should recalibrate the battery "%" gauge.

    To do this, run your phone down to below 5% battery. Then charge your phone overnight. Even if it says "100%" in 4-5 hours, leave it charge for a few hours more.

    Now your phone should properly register the actual percentage of battery life left.

    You can read more about batteries, recalibrating the gauge and so on at:

    http://www.apple.com/batteries/

    Specifics about iPhone batteries are here:

    http://www.apple.com/batteries/iphone.html
     
  5. sidefx thread starter macrumors regular

    Joined:
    Jan 18, 2010
    #5
    It should be good from the factory however. I forgot to say its my new iPhone 4S
     

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