Battery Health 55%

Discussion in 'MacBook Air' started by pstauff, Dec 26, 2008.

  1. macrumors newbie

    Joined:
    Jan 29, 2008
    #1
    I got my MBA in mid February. My battery health is down to 55%, after 186 charging cycles. My full charge capacity is down to 2816 mAh, from the original 5200 mAh. The condition is listed as "Check battery." I did a calibration last night, which didn't help anything. Is this normal? Anyone else have similar figures?
     
  2. macrumors 604

    SnowLeopard2008

    Joined:
    Jul 4, 2008
    Location:
    Silicon Valley
    #2
    Not sure about the batteries of MBAs, but that seems very abnormal. You should be over 80% battery under 300 cycles. That is Apple's warranty.
     
  3. macrumors newbie

    Joined:
    Jun 30, 2008
    #3
    Ouch that's brutal.

    I have 145 cycles and i'm still at 96%. I do a calibration about every month or two. Gen 1 btw. Also i find that every once in a while it will dip to as low as 93% but that keeping it on the charger for a day or so straight brings it right back up. Goodluck!
     
  4. thread starter macrumors newbie

    Joined:
    Jan 29, 2008
    #4
    I will bring it in to the Apple Store. Maybe I will get a new battery under warranty.
     
  5. macrumors 65816

    bbotte

    Joined:
    Feb 11, 2008
    Location:
    USA
  6. macrumors newbie

    Joined:
    Jul 7, 2008
  7. macrumors 68040

    Cynicalone

    Joined:
    Jul 9, 2008
    Location:
    Okie land
  8. thread starter macrumors newbie

    Joined:
    Jan 29, 2008
    #8
    Battery is now 100%. I just got back from the Apple store. They replaced my battery under warranty. Their diagnostics program immediately showed a problem with my battery.
     
  9. macrumors 6502

    Cole Slaw

    Joined:
    Oct 6, 2006
    Location:
    Canada
    #9
    I've had batteries go prematurely bad like that a couple of times in the past, and Apple has always been very good about replacing them under warranty.
     
  10. macrumors 604

    SnowLeopard2008

    Joined:
    Jul 4, 2008
    Location:
    Silicon Valley
    #10
    ^ Yea, I remember during the "Sony's Exploding Battery" era in 2006 or so, Apple called me about getting my battery exchanged since most iBook G4s had the Sony battery that was overheating and blowing up on people. In fact, my battery wasn't defected but still Apple bothered to call me. That is quality service, I was also out of AppleCare too, being over 1 year.
     
  11. macrumors 65816

    Joined:
    Jul 29, 2005
    #11
    Sorry this is late but yea something is wrong with your battery.

    Here are mines.
     

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