2008 MB unibody battery health

Discussion in 'MacBook Pro' started by shttngdcknps, Oct 31, 2010.

  1. shttngdcknps macrumors newbie

    Mar 29, 2010
    Ive recently noticed that my mb's battery has only held a charge for a few hours so after downloading cocnutbattery i have been through 245 cycles and only hold 29% capacity(1224/4100mAh) but today after my battery got to 18% charge i got a message to "service battery" then a minute later my battery shot up to 35%.. what the hell is going on here?

    also i calibrated my battery a few days ago
  2. Chase R macrumors 65816

    Chase R

    May 8, 2008
    Sound like you have a faulty battery.

    I have the same computer, but mine has been through 607 load-cycles and is still at 90% health.
  3. shttngdcknps thread starter macrumors newbie

    Mar 29, 2010
    Any chance apple-care covers faulty batteries?
  4. celticpride678

    Feb 15, 2009
    Boston, MA
    Seems like you have a defective battery. Since the battery is below 300 cycles, Apple will replace it for free because the capacity is below 100%.

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