How to get my 15'' built in battery to close to 73whrs?

Discussion in 'MacBook Pro' started by Jottle, Jun 17, 2009.

  1. Jottle macrumors 6502

    Joined:
    Oct 17, 2003
    #1
    I've tried calibrating my battery, and after calibration, coconut battery shows that the built in battery on my 15'' unibody mbp is at a total of 6971mAh. That's not too close to even 7000mAh. Interestingly, coconut battery says that the original capacity on my battery was only 6500mAh before I calibrated it. Is there any recommendations for recalibrating the battery one more time to get it closer to at least 7100-7200mAh? I've heard that actually letting the battery drain out slowly before doing a full recharge helps. Usually I burn down the battery quickly when I calibrate it. Also, any idea why coconut battery would show my original capacity as 6500mAh?
     
  2. reallynotnick macrumors 6502a

    Joined:
    Oct 21, 2005
    #2
    Pretty sure the MBP battery is about 10.95 volts, so 10.95v x 7000mAh =76.65Whrs, that's over 73Whrs. ;)
     
  3. maratus macrumors 6502a

    maratus

    Joined:
    Jun 12, 2009
    Location:
    Canada
    #3
    It's 10.95V acually. 73 wh @ 10.95V means 6666mAh capacity.
     
  4. Jottle thread starter macrumors 6502

    Joined:
    Oct 17, 2003
    #4
    So given that I got it up to 6971mAh (which can't be right as that's above its capacity), I shouldn't have anything to worry about. Correct? :)
     
  5. maratus macrumors 6502a

    maratus

    Joined:
    Jun 12, 2009
    Location:
    Canada
    #5
    Looks like your battery is fine. Controller will show correct statistics after several recharge cycles.
     

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