How can I recover a deeply discharged MacBook battery?

Discussion in 'MacBook' started by kinotix, Aug 16, 2012.

  1. kinotix macrumors newbie

    Aug 16, 2012
    I was out about a month and, when returned, the battery of a MacBook (white) went most probably into a "deep discharge" state.
    Battery shows 0% (not x) and doesn't charge when plugged in.

    Are there any *tricks* I can try to recover a deeply-discharged battery?

    Battery Information:
    Model Information:
        Serial Number:    XXXX-ASMB016-****-****
        Device name:    ASMB016
        Pack Lot Code:    0002
        PCB Lot Code:    0000
        Firmware Version:    0110
        Hardware Revision:    0500
        Cell Revision:    0102
    Charge Information:
        Charge remaining (mAh):    0
        Fully charged:    No
        Charging:    No
        Full charge capacity (mAh):    0
    Health Information:
        Cycle count:    10
        Condition:    Check Battery
    Battery Installed:    Yes
    Amperage (mA):    0
    Voltage (mV):    5089
  2. GGJstudios macrumors Westmere


    May 16, 2008
  3. kinotix thread starter macrumors newbie

    Aug 16, 2012
    Thanks! Reset the SMC, but still the same.
    Only voltage keeps lowering...

    Voltage (mV): 4846

    iStat Pro also shows 0% health

    It's a late 2007 MacBook, with a Battery with about 2 years. Just 10 cycles because it has been almost always plugged in. And during the late year not really much usage.
  4. GGJstudios macrumors Westmere


    May 16, 2008
    That's likely what helped kill it, as Apple doesn't recommend leaving it plugged in all the time. Read the AC POWER section of the Battery FAQ. In fact, reading it all would be helpful. You need a new battery.

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