WTF? my batter just dropped 20% in one day..???!?

Discussion in 'MacBook Pro' started by optimus prime, Feb 24, 2009.

  1. optimus prime macrumors regular

    Joined:
    Jul 9, 2007
    #1
    i had 81% max as of yesterday and now i'm down to 58%? i don't get it.

    my computer is 21 months old, and i have 179 cycles on the batt.

    what's the problem?
     
  2. JustGretchen macrumors 6502

    Joined:
    Dec 2, 2008
    #2
    Take your MBP to the applestore, make a reservation for the genius bar...They can run a test on the battery to see if it's wearing normally.

    apple.com/retail
     
  3. optimus prime thread starter macrumors regular

    Joined:
    Jul 9, 2007
  4. Moriarty macrumors 6502

    Joined:
    Feb 3, 2008
    #4
    A few possibilities:

    1) You used the computer, so the battery went down. :rolleyes:
    2) You had the computer in sleep mode, so the battery went down. Battery tends to decrease 1 or 2 % per hour in sleep mode I find. Perfectly normal.
    3) Something is wrong with the battery.
     
  5. optimus prime thread starter macrumors regular

    Joined:
    Jul 9, 2007
    #5
    i'm not talking about the charge.

    i'm talking about the charge capacity. ya know?
     

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