Battery life dropped by 50%

Discussion in 'MacBook Air' started by knmlee, Mar 22, 2009.

  1. knmlee macrumors newbie

    Joined:
    Nov 28, 2008
    #1
    Battery life on my MacBook Air (1.86/SSD) has dropped to less than two hours (for casual web browsing). When new, I got more than 4 hours on a full charge. Also, the battery meter seems to be way off. The machine shuts off with the meter showing 40% remaining. I've tried several full charge - discharge cycles. System information shows battery health to be good.

    Any ideas on how to get battery life to where it was when new?

    Out of curiosity, has anyone had their batteries replaced by Apple? How much would that cost?

    Thanks
     
  2. 11800506 macrumors 65816

    11800506

    Joined:
    Oct 31, 2007
    Location:
    Washington D.C. Area
    #2
    I would first tryab see what the utility coconutBattery says about the status of your battery. If it is still acting up I would bring it into an Apple store as they'll likely replace your battery for free if it has been acting up.
     
  3. knmlee thread starter macrumors newbie

    Joined:
    Nov 28, 2008
    #3
    Interesting utility (coconutbattery).

    It shows that my current battery capacity is only 67% of the original. I wonder what happened to cause that? My machine is only 4 months old.



     
  4. turugara macrumors regular

    Joined:
    Jan 18, 2009
    Location:
    Pennsylvania
  5. Macjames macrumors 6502a

    Joined:
    Dec 12, 2007
    Location:
    Yorkshire, England
    #5
    Just checked mine

    148 load cycles, 93% healthy, age of my Mac 12 Months... phew!:D

    if your only getting 67% time to go see apple
     
  6. knmlee thread starter macrumors newbie

    Joined:
    Nov 28, 2008
    #6
    Only 60 cycles
     
  7. darngooddesign macrumors G3

    Joined:
    Jul 4, 2007
    Location:
    Atlanta, GA
    #7
    Apple will replace the battery under warranty.
     
  8. turugara macrumors regular

    Joined:
    Jan 18, 2009
    Location:
    Pennsylvania
    #8
    219 Cycles, 88% charge. MBA Rev A. 14 months.

    Yours is def defective.
     

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