I got a Kodak camera (CX7530) cheap from a yard sale, to give to my dad. I also got the Kodak camera dock 6000. But no battery. I'm guessing it's supposed to use this battery pack, which I don't want to buy, but why couldn't the dock charge a pair of standard NiMH AA cells? Someone in one of the reviews here (see review "Easy to use but charging a minus, December 10, 2003 By A Customer") says it won't, as does this. How is that possible?