posted on Jul, 9 2008 @ 11:33 PM
It has been my experience with older systems that people tend to wipe the hard drive and install a new OS without taking the time to install the
"extra" programs that the manufacturer originally installed.
If I remember correctly from that far back, the thinkpad 600 series needed a "power management / battery miser" program installed so that the
battery would charge correctly.
It is possible that this is no longer installed on your laptop.
Now lets see, where did I used to download that program from?
Ah, here it is
Take a read of this, and see if its installed properly on your laptop. If not, download and install. Maybe you'll get lucky and your battery is good
Best of Luck