Battery Misbehavior

[infinetmohali]

I have Presario 1210CA which originally came With Win95, I have installed WinXP with no problems. I had a battery problem when I was using Win95, therefore I opted for WinXP which didn't help. Battery is not charging fully. I tried charging after fully draining the battery in safe mode but it stops charging after 20%. I tried updated the Battery Controller patch from Compaq website but didn't helped much just charging somewhat faster then before. When battery stops charging I pulls the Power plug and reinserts it, then it shows blinking arrow towards battery and after some time it reaches next mark of 30%, it do it till it goes to 100%. But when I uses my notebook on battery system goes to standby on just 70% and when I insert the power plug it starts charging from 0% again. My notebook supports APM but i couldn't find APM in device manager under System Devices. I also tried reinstalling WinXP but couldn't find APM again under System Devices, please help. Battery is NiMH type.

[JaxSon]

Troubleshooting Notebook Battery Power. (http://h10025.www1.hp.com/ewfrf/wc/document?product=94955&lang=en&lc=en&cc=us&dlc=en&docname=c00035814)

Presario 121xxx System ROM Update (http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?product=94955&os=228&lang=en&lc=en&cc=us&dlc=en&softwareitem=33687)

Notice the many links on the left for Manuals, FAQ's, etc.

Personally, I would suspect the battery itself.

Parts Breakdown for your Presario 1210CA. (http://partsurfer.hp.com/cgi-bin/spi/main?sel_flg=partlist&model=CPQ1200XX&HP_model=470011-354&modname=Compaq+Presario+notebook+PC+1210CA+%281210 CA%29&template=main&plist_sval=ALL&plist_styp=flag&dealer_id=&callingsite=&strsrch=&keysel=%3F&catsel=%3F) It lists your battery as being part number 177458-001, cost $251.00, Battery pack, enhanced lithium-ion (LiON), 3.6Ahr, rechargeable. If this is not the type of battery that you have installed, I would replace it right away.