New MBP C2D bad battery

Discussion in 'MacBook Pro' started by Surface mount, Nov 24, 2006.

  1. Surface mount macrumors newbie

    Joined:
    Oct 18, 2006
    #1
    My new (week 42) Macbook Pro C2D has less than acceptable battery life. The system profiler shows that it has a max capacity of 4612 mAh.

    I recalibrated and reset the PMC. gave it a few days of normal use to see if it evened out. When it didn't, I downloaded coconut to check and see what that app said. same thing..... roughly 73% of max capacity.

    Applecare said to give it a few more days of use after a third recalibrate and then they would concider a new battery.

    I realize that the 5500 mAh is an acverage, but I think 4300-4600 is fare too low.

    Is there any way I can get the max capacity to read 5500?

    The battery is 3 weeks old.

    Thanks.
     
  2. Transeau macrumors 6502a

    Transeau

    Joined:
    Jan 18, 2005
    Location:
    Alta Loma, CA
  3. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #3
    Make sure you're calibrating it correctly.



    Also, try re-seating the battery and resetting the PMU. :)
     
  4. chosenwolf macrumors 6502a

    chosenwolf

    Joined:
    Feb 4, 2006
    Location:
    Los Angeles
    #4
    Sometimes you get lucky, sometimes you don't. My C2D 17" MBP battery has 6654mAH capacity and I get 4 hours of battery life with mediocre use. :)
     
  5. Jiddick ExRex macrumors 65816

    Jiddick ExRex

    Joined:
    May 14, 2006
    Location:
    Roskilde, DK
    #5
    Guys, he already said twice that he calibrated it... :)
     
  6. mad jew Moderator emeritus

    mad jew

    Joined:
    Apr 3, 2004
    Location:
    Adelaide, Australia
    #6
    Yeah, but I know I calibrated the first Intel machine incorrectly because I used the old PPC technique. That's why I posted the Intel-specific method. :)
     
  7. Brambo macrumors newbie

    Joined:
    Dec 21, 2006
    Location:
    Leiden, Holland
    #7
    Mine is not as bad, but still: I've got my MBP C2D for 7 weeks. The battery capacity used to be at 5500+ mAh. Since a day or so it is dropping, and the battery won't charge beyond 96%, see picture.

    Calibrating didn't help, charging overnight also didn't change anything.
    I understand that the capacity of a rechargeable battery drops when used. But it seems to me the battery capacity is going down rather quick, too quick if you ask me. Any ideas on what to do?
     

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