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  1. #1
    Battery Went From 98% to 18% overnight

    Member Since
    Feb 12, 2008
    Posts
    11
    Battery Went From 98% to 18% overnight
    Has 347 cycles, did the calibration anything else i can do???

  2. #2
    Battery Went From 98% to 18% overnight
    jimd144's Avatar
    Member Since
    Dec 02, 2008
    Location
    Sacramento
    Posts
    145
    Specs:
    MacBook Pro
    If you shut it down and it came back next day at 18, you need a new battery

  3. #3
    Battery Went From 98% to 18% overnight

    Member Since
    Feb 12, 2008
    Posts
    11
    thats what i figured, just surprised me that it went so quickly.

  4. #4
    Battery Went From 98% to 18% overnight

    Member Since
    Dec 03, 2008
    Location
    Iowa
    Posts
    30
    How quickly are you talking? Surely this isn't the new aluminum MBP? I would assume there would be a trick to refresh it. Shut down, take the battery out and let sit for 48hrs, put battery back in and bring up to full charge. I have heard this somewhere but I am unsure if it was the solution to your particular problem.

    If all else fails, CLICK HERE for a link to new batteries from Apple. Otherwise eBay might have some for slightly cheaper.

    HTH

  5. #5
    Battery Went From 98% to 18% overnight

    Member Since
    Feb 12, 2008
    Posts
    11
    Well here is something interesting to add to this, I got to looking at the battery and it appears the outer casing, right next to the button is coming off, you see it when you remove the battery and you can see it when you install the battery and look at the bottom of the notebook. Maybe it got too hot? It's a Macbook pro 17" it's about 9 months old, not sure if apple would warranty it or not, worth a call i guess.

  6. #6
    Battery Went From 98% to 18% overnight
    jrichard012's Avatar
    Member Since
    Aug 26, 2007
    Location
    Orange County, Southern California
    Posts
    124
    Specs:
    Mac Minis, iPhone 6/5S, iMac, Mac Book Pro
    I replaced a MBP battery that slid down to 33% just after a year of owenership. Apple replaced it on the warranty. You might want to contact them to see if they will do the same. Also, have you "conditioned" the battery according to their procedure?

  7. #7
    Battery Went From 98% to 18% overnight
    eric's Avatar
    Member Since
    Nov 04, 2006
    Location
    twin cities, mn, usa
    Posts
    8,708
    did you have an external hd hooked up to it when it was sleeping, and was it off the power lead?
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