Battery Calibration keeps failing

Discussion in 'MacBook Pro' started by mark28, Feb 19, 2011.

  1. mark28 macrumors 68000

    Jan 29, 2010
    The calibration of January failed when I used the recommended 5 hours. Last night it failed again when I used 7 hours.

    So now my question is, how long should I keep the MBP sleeping then?
  2. Fubar1977 macrumors 6502a


    Jul 30, 2010
    North Yorkshire, UK
    How do you mean by "failed"?
    There is no notification as to whether calibration has been successful, as long as you follow the guidelines you should be fine.

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