Battery capacity degrading 1% per cycle

Discussion in 'MacBook Pro' started by SecurityTinker, Jul 30, 2012.

  1. SecurityTinker macrumors newbie

    Joined:
    May 11, 2008
    #1
    I have a battery issue: starting from about two months ago, my battery has had its capacity decrease by 1% per cycle. I have no idea what it is doing this, as there has not been a change in my treatment of the battery. I go through at least once cycle per week. I have also tried "calibrating" as per the apple article. I have also reset the SMC. Nothing appears to change. What could be the issue?

    A summary of battery info is here. Note the right column.

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  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Take it to Apple to have them check to see if your battery is defective. If it is and you have AppleCare, they'll replace it free.

    The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries in older Apple notebooks.

    This should answer most, if not all, of your battery/charging questions:
     

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