Dangit, I just fixed up this laptop (installed new HD, set up Windows), but now for some reason the battery doesn't work now.
I know the battery was good, but now as soon as I unplug it, the thing instantly turns off. Windows recognizes whether there's a battery there or not, but it always says it's 99% and charging. It seems too coincidental that it stops working after I made a hardware change, but I can't figure out a fix. All I see online is "your battery/charger need replacing". I don't want to spend money on stuff I don't need just to troubleshoot this though.