HP dv9000 battery/power supply problem

Recently my laptop would not power on and I thought that it was problem with the battery since it was about due. So, upon purchasing a new one, I popped it in and powered it up fine. it showed 45% o so on the meter but the battery will not charge and has dropped to about 10% before i realized it and powered off Why won't it run directly off the ac power? Why won't the battery hold a charge?

i just installed the hp battery check utility and it says the battery is perfect condition and charging yet its obviously not actually charging.

please help me out...

i think it may be problem with your ac adapter, make sure that it is working correctly, does your computer show the AC plugged in when it is working??

it is better to visit your nearest hp service station some times it is caused by some internal error....

if you have a universal AC adapter or know some one with the same laptop it might be worth try it out. I don't want to tell you to buy a new one because it is bit costly