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  1. #1

    Member Since
    Sep 10, 2010
    Macbook Pro battery capacity drained overnight - help!
    I've had my Macbook Pro for about two years now, and have never had any battery issues. Today, out of nowhere, the capacity went from about 91% to 20%. What on earth is going on? Calibrating the battery didn't accomplish anything.
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  2. #2

    Member Since
    Jun 25, 2011
    i guess the best thing to do is to go to an apple store. which mac do you have, so we can further advise you?
    my friend had this problem and the store replaced his battery for him... good luck!

  3. #3

    BrianLachoreVPI's Avatar
    Member Since
    Feb 24, 2011
    March 2011 15" MBP 2.3GHz i7 Quad Core 8GB Ram | Mid 2011 27" iMac 3.4 GHz i7 16 GB RAM 2 TB HDD
    You may be a candidate for an SMC reset Link - if not and it shows no sign of charging - perhaps a trip to the Apple store is in your near future.

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