RE: multiple ni-cd battery charger
The Accu Cycle TX/RX battery cycler/charger description says: "Adjustable cell selector, charge and discharge rates for 6-8 cell Tx batteries or 1,4 or 5 cell Rx batteries." If your RX batteries are 6 cell, they could be charged on the TX side. But if they're 4 cell and most RX batteries are, they could not be charged on the TX side as it only does 6-8 cell batteries.
The Accu Cycle Elite will charge anything on the left side that it will charge on the right.