Any suggestions on what to do about the battery?

I went to the campus computer shop an hour ago and asked about wifi PCMCIA cards. But then I got distracted by the b&w G3, PowerMac 5300, and Color Stylewriter 1500 which were brought in, so I'll be back next week to see if I want to soup up this PowerBook, or get a b&w G3 instead. Oh, how the G3 calls me! :O

(this is the same shop from the $50 orange iMac incident-- and yes, that orange iMac was still there when I went in today)