MacBook battery failure? Please help.

Discussion in 'Mac Basics and Help' started by knapkin, Dec 31, 2006.

  1. knapkin macrumors member

    Joined:
    Oct 21, 2005
    #1
    I was doing my semi-regular battery callibration last night, and ran the battery down until the computer went to sleep, and then left it like that until it turned off.

    I then plugged it in to charge for 8 hours or so. I noticed immediately that the charge status light was green as soon as I plugged in the adaptor, but thought nothing of it.

    8 hours later, I turned on the laptop (while plugged in). The battery status icon has an x through it, and when I click it, it says "No batteries available".

    I have removed and re-inserted the battery. Also, when I press the button on the battery that tells you how charged it is, the first light flashes repeatedly.

    This is a 2.0 GHz Core Duo (not C2D) MacBook.

    Anyone have any ideas? Apple phone support is closed for new years.
     
  2. mklos macrumors 68000

    mklos

    Joined:
    Dec 4, 2002
    Location:
    My house!
    #2
    Reset the PMU chip.

    Shutdown the MacBook

    Take out the battery and unplug it from the AC Adapter

    Press and hold the power button for about 5 seconds and release it

    Put the battery and AC Adapter back in and power it up
     

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