Having recently stumbled upon a gorgeous MD2/MB1 combination, I am now on the hunt for a pair (or two pairs, if possible) of Nikon MS-1 battery holders for the drive. This is the second drive I have acquired that came with Ni-Cads instead of the original AA packs; thus far, the Ni-Cads have worked ok, but the sets are " 78-04" and "79-12", respectively. I know nothing about their ancestry in terms of whether either set has been rebuilt, how long Ni-Cads last prior to the necessity of a rebuild, cost of same, etc...