My name is Vikram Kumar Thumu, from India-Hyderabad. I have seen your message on the issue . I would like to provide my suggestions on the issue. I hope that this should work for you and will resolve the issue.
well, the issue seems to be with Battery , it is not working properly any more. or it could be an issue with Battery drivers in PC.
To isolate the issue, I recommend you to try below steps. This will resolve the issue .
Step 1: Connect Battery and Also AC power adapter, try to charge the Battery for around 6 hours. Make sure that notebook is idle for 6 hours, do not try to run any application . Just let notebook be ON for 6 hours with AC power with Battery in, so that battery gets charged up.
Step 2 : Once if you are done with 6 hours of Charge, now disconnect the AC Power. Restart PC and let the PC run on Battery only. Check out how much time PC is able to run on battery. If PC powers ON properly with battery and runs around 40 minutes then it confirms that Battery is fine else if PC do not startup properly or if it works less than around 30 minutes on battery then it confirms that it is an issue with Battery. If found fault with battery then try step 3 process.
Step 3 : To check Health of Battery
Please open below link in the new Internet Explorer. Copy and Paste the link at the address bar and then click GO. This will open a web page that titles as " HP Notebook PCs - Checking the Status of the Battery in Windows XP"
Once if you open web page, please perform the steps that are mentioned in web page as appropriate to your issue. I hope that this should resolve the issue.
If you need any further assistance on the issue, please mail me at firstname.lastname@example.org
I'll be glad to help you.