I decided to build my own CMOS battery for my laptop. I got a CR-2032 watch battery from Radio Shack, cut the lead off the old battery, bared the ends of the wires, and wound black tape around the battery to hold them on. Works great! I thought about soldering the wires directly to the battery, since Radio Shack didn't have a CR-2032 with solder tabs, but decided not to try it. I think that little battery would really make a POP if I got it too hot.