Laptop Won't Run on Battery

[some1kool]

Computer: HP Omnibook 6100
Windows 2000

I have been having trouble with my battery for about two weeks. It would say it would be charged and then 20 minutes later, the laptop would shut off without notice. Now the problem is that the laptop does not charge the battery anymore. Someone at work has the same laptop and I took their working battery and put it into mine. It stated on the battery it was half full, but when I put it in my laptop it would not turn on without the AC power. When I plug the AC power it the laptop works fine, but does not charge the battery nor does it stay on if I take the AC plug out. It says "Charging" on the taskbar but stays at the same percent. Sometimes it just switches to AC Power. What could be the matter?

 

[obvious]

i'd say that the battery is kaput. gone. dead. nomore. it is an EX-BATTERY. (end shamless monty python impression )

no really, i'd say it's about time you got a new battery as it sounds like it's on it's way out.

 

[PunkPyro912]

the battery cant be dead because he tried another battery and had the same problem. At least its very unlikely that both batteries had problems with them. I'd say that it's your battery charger. See if you can borrow one of those and let us know how it all works out.