Does this seem normal? Battery related

Discussion in 'MacBook Pro' started by GRN99EX, Jun 28, 2008.

  1. GRN99EX macrumors member

    Joined:
    Mar 10, 2008
    Location:
    South Jersey
    #1
    15" MBP Penryn

    4 Months old

    23 cycles, 86% health

    I have calibrated it at least once a month, and after calibrating it overnight last night, the health dropped from 92% to 86%.

    Is this something I should call Apple about, or should I just try calibrating it again to see if the health comes back? I have a white MB, that is 5 months old. I calibrate it around the same time as the MBP, and the health on it is 98%.

    Any input would be appreciated.

    -Sean
     
  2. newbie jnr macrumors member

    Joined:
    Mar 10, 2008
    #2
    I've got the same vintage 15" MBP (base model)

    49 Cycles

    in the last two days it's health has gone 95%>50%>65%>94%>80% and currently it's 95%

    This dip was after using it on mains power for a couple of days, using it on battery has brought it back up.

    I calibrated it only about a week ago.

    A bit odd
     
  3. jhamerphoto macrumors regular

    Joined:
    Oct 26, 2007
    #3
    Battery health fluctuates quite a bit. I've never calibrated mine over the year that I've had it (2.16 MBP) and it's at 92% health after 80 cycles.

    Just completely cycle the battery a time or two, sometimes that helps.
     

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