Question about HP Pavilion dv9000z Notebook

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I have an hp pavilion dv9350ea. Over a couple of years the battery became defective and I installed a new one. It showed 30% charge. I disconnected the charger to discharge the battery before re-charging it. After a while the computer went off, and I re-inserted the charge lead. The icon says "0%, plugged in, charging", but the icon does not show the battery level being charged (although removing the lead for a second and replacing it runs the icon through four (increase charge" cycles - around 8 seconds before the charge motion stops), and the battery is not charging at all - even when left overnight! When the power lead is removed, the battery powers the computer for around 1 minute before it dies out. Please help!

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  • 4 more comments 
  • d_millson Mar 11, 2009

    I already thought of that one myself, but what clarification do you need? If it is indeed the new HP battery, then there must be a way of proving or confirming it.

  • d_millson Mar 11, 2009

    As you can see in the write-up, I installed the new battery, and it went up from 25% to 30% max in the computer. (First step of re-calibration) I removed the charger lead and it discharged slowly until the computer closed down. (second step) That is as far in the re-calibration process I got. Now the battery does not charge as explained above.

  • d_millson Mar 15, 2009

    I am an Engineer and a Project Manager.
    When I normally look at a problem, I define ways to apply specific tests to prove the location of the fault or problem. Following this analysis, I devise ways to correct that fault. That is what I was hoping for from this forum.
    In the event, I did the following: -
    1) Check the battery in another computer for charging. It did!
    2) I charged it to 10% in order to overcome any discrepancies in the low voltage charging inhibition between computers and attempted a re-charge again on my own computer. Result - about 1-2% increase in charge in the battery indicated before cutout of charge again. By this method of removal and replacement of the battery it now stands at 26% charged and rising slowly as re-booting etc takes place.
    3) I then referred to the HP website, and learned that I may have a problem with corrupt software in the charging circuit somewhere, and I ought to re-install Vista on a clean disk to ascertain whether or not that is the problem. if it is, then at that stage it will be solved.
    Any comments please?


  • christian Abong May 11, 2010

    check your battery were you bought...

  • christian Abong May 11, 2010

    yeah sumtimes theres a defective ....ok just try to calibrate your battery

  • christian Abong May 11, 2010

    i hope can help you.,,

    i think the battery you replace is maybe deffective...


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I have to agree that the battery is defective or maybe it is NOT the correct one for your system, although it may be similar.
Did you buy the battery direct from HP a third party?
The AC adapter charger could be defective as well, maybe the defective battery ruined the charger.
I hope this helps.
Good Luck.

Posted on Mar 11, 2009

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