i am going to give this a whirl
batteries are just out of sight pricewise
http://www.instructables.com/id/Revive-Nicad-Batteries-by-Zapping-with-a-Welder/
batteries are just out of sight pricewise
http://www.instructables.com/id/Revive-Nicad-Batteries-by-Zapping-with-a-Welder/