13" MBP 2009 Battery is getting crappy!

Discussion in 'MacBook Pro' started by petrucci666, Apr 21, 2010.

  1. petrucci666 macrumors 6502a


    Apr 30, 2009
    Los Angeles, CA
    So I calibrated my battery last night in hopes of bumping up it's longevity, but with no success. Right now I'm at 100% charged, at exactly 50% brightness, Word and Powerpoint open, with the usual browsing. No music or video playing etc. The time remaining is approximately 4 hours.

    I checked coconutbattery and it says that the capacity is 100% with 201 cycles and 7 month age.

    Why is it not showing 5:30 to 6 hours (sometimes even 6:30) like it did only 2-3 weeks ago. Shouldn't the calibration help the longevity of the battery?

  2. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    Calibrating the battery only provides the software with a more accurate reading of the remaining capacity.
  3. Pax macrumors 6502a

    Dec 12, 2003
    More likely something is using your CPU.

    Word and Powerpoint can be CPU hogs. It depends on the version. What is your CPU load when it says 4 hours? How many hours if you reboot and do not open any programs at all?

Share This Page