Thanks for the replies about the battery. Now the question is: If I get a new 6V nicad, it will need a formation charge. BUT the only wall charger I have is a 4.8V 50mah wall wart. And the only smart charger is an Accu-Cycle Elite. The Accu-Cycle only does peak detection so is not good for the first forming charge. How the heck are you supposed to get around this? Is there some cheap adjustable constant current charger available for something like this? Maybe I'll ask in the battery section as well but figured you guys are more likely to use nicads.