Dead battery

Discussion in 'Mac Basics and Help' started by Caezar, Jul 18, 2006.

  1. Caezar macrumors 6502

    Joined:
    Jun 9, 2004
    Location:
    Between a rock and a hard place
    #1
    The battery of my 12-inch G4 1.5 Powerbook seems dead. The problems started a few weeks agao, when after just 20 minutes of usage, the powerbook would suddenly shut down. At restart, the clock would be reset.

    Now it is even worse. The power indicator is always "Calculating...". The powerbook shuts down immediately when I pull the power adapter's plug. In short, the battery cannot even provide 1 second of power to my powerbook.

    I did some research on this forum and found a link to another thread with detailed instructions on how to reset the PMU, the PRAM and the NVRAM. I followed all the steps, an yet nothing works.

    I ordered a replacement battery, but it takes weeks to arrive (I am in Taiwan). Is there anything else I can try to revive my battery?

    Caezar
     
  2. OutThere macrumors 603

    OutThere

    Joined:
    Dec 19, 2002
    Location:
    NYC
    #2
    It could be your power manager has gone kaput...which would mean a replacement battery wouldn't do anything either.

    You'll have to wait and see. Could just be the battery, otherwise, you'll have two batteries that don't charge and it'll be time to send your computer in. :)
     
  3. Caezar thread starter macrumors 6502

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    Jun 9, 2004
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    Between a rock and a hard place
    #3
    Aie... Do you have an idea of the cost of repairing/replacing the PMU if it is the culprit?

    Caezar
     
  4. Caezar thread starter macrumors 6502

    Joined:
    Jun 9, 2004
    Location:
    Between a rock and a hard place
    #4
    Apparently, the Powerbook 12" DVI does not have a separate PMU board. If I have to replace the logic board, it will cost me 700USD at the very least. This is infuriating.

    How comes I see so many posts on this forum with people having similar PMU problems with the Powerbook and the Macbook? I would assume that after all these years, Apple figured out a way to produce reliable laptops...
     
  5. OutThere macrumors 603

    OutThere

    Joined:
    Dec 19, 2002
    Location:
    NYC
    #5
    Well before passing judgment wait to see if your new battery works...
     
  6. Eniregnat macrumors 68000

    Eniregnat

    Joined:
    Jan 22, 2003
    Location:
    In your head.
    #6
    I had the same thing go wrong, it was just the battery. It went bad very quickly. It had hundreds of cycles on it, but what finally killed it was a bad AC adaptor. It wasn't making a good connection, so it would charge for a second, turn green, disconnect, etc... I got a new AC Adaptor and a second spare battery, and everything went fine. The AC adaptor was damaged when my laptop fell onto the ground while plugged in. It damaged my HD, and my Ethernet port.

    There is a bit of irony here, I had to wait 2 weeks when I bought my computer for my spare battery. It was made in Taiwan.
     
  7. Littleodie914 macrumors 68000

    Littleodie914

    Joined:
    Jun 9, 2004
    Location:
    Rochester, NY
    #7
    Yep, same thing with one of our older clamshell iBooks. It would mis-calculate how much juice was left in the battery, and die with about 15-20% left. A replacement battery from Apple or even a good third-pary company like NewerTech should fix things.
     
  8. Caezar thread starter macrumors 6502

    Joined:
    Jun 9, 2004
    Location:
    Between a rock and a hard place
    #8
    I received my replacement battery today and, to my relief, it solved the problem. Now I am puzzled why my original battery died after only one year of use. I owned several laptops in the past (IBM, Dell) and they held up pretty well.

    Besides the originl Apple and NuPower batteries, what are the other choices for the 12inch Powerbook G4?

    Caezar
     
  9. d wade macrumors 65816

    d wade

    Joined:
    Jun 27, 2006
    Location:
    Boca Raton, FL
    #9
    could have been a factory problem? ive had laptops before and they last years. coulda just been a problem with yours. glad to hear your new one is ready to go
     

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