No I'm not talking about the big connector thingy you are talking about lol. I am talking a Nickel Metal Hydride battery. NiMH. Basically it is a rechargable frequently used in RC that does not hold a memory. Chances are you can just swap the Ni-cad out for a NiMH Sub C for like $6. The NiMH will probably last much longer as well. If you got any more questions feel free to ask.