"AAA Battery Pak" for older Fuji GX 680i and 680ii???

I recently bought a Fuji GX 680i package from a studio that used it 5
years ago. I'm assuming that the Ni-CD battery is not going to recharge
to full for very long and I've heard tell that there was a AAA battery
pack made for that body (though it is different than the 680iii
accessory) Apparently Fuji made them at a time when the 680iii
brochures were new and out so they never listed this part made for the
older cameras so as not to confuse their customers by listing older
equipment with the new model.

Does anyone know how I can get one some of these? Does anyone know how
to contact the Fuji GX 680 factory or reps?