I don't believe that charger peaks NiMh batteries. If you wish to get away with it, charge your NiMh batteries until they they start to get real warm.

Although Nicd batteries have really low internal resistance when compared to most NiMh batteries, I don't believe 1500 Nicd's could compare to the new IB3800's.

I'd recommend going with today's 3800's or even good 3300's and buying a decent charger. It doesn't have to be expensive top of the line.

Ryan