Question about HP Pavilion dv4000 Notebook

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Battery won't charge

I have replaced battery and still same problem

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  • Joe Deak Feb 20, 2009

    Same problem I even changed the ACpower adapter.' I think it's the Momma Board

  • Joe Deak Feb 20, 2009

    Same problem battery won't charge. new battery and new AC adapter

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There are only a few things involved in the charging of the battery. First is the battery, and you've replaced that. If your laptop runs with the power adapter, then that is probably OK. That only leaves the battery contacts (bent,dirty, corroded) or the circuit on the motherboard. So here is what I'd suggest:
1) Unplug the power adapter, remove the battery and hold the power switch in the on position for at least 30 seconds.
2) Use a multimeter (voltmeter) to verify that your power adapter is providing the voltage that it should.
3) Check the contacts on the battery and where the battery plugs into to verify that they are not bent, corroded or gunked up with crud of some kind.
4) Verify that your new battery is OK. You may have a new, bad part.
5) If all of those things are OK, you probably have a bad mother board.
Let me know what you find.
Tanks,and have a good one!
Ron

Posted on Dec 14, 2008

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