I've got an extra 12" battery looking for a new owner. It's a much loved but beaten up (I LOVE how rugged the aluminum powerbooks are) battery, however its age only allows it to gets about 1 to 1.5 hours of battery life. I just want to get rid of it to help pay for my new battery... otherwise I would keep it, but I need the money. Perfect extra accessory when you need a little more juice.
e-mail me if interested at email@example.com