The RCL-7A Multi-Charging station is designed to charge up to six (6) Nickel Metal Hydride double battery packs and (1) STX-101 or STX-101M surface station equipped with (2) 6 volt recharge- able batteries.  The RCL-7A has a smart circuit which ensures the batteries are charged at the right rate and keeps them topped off when they reach the full charge state.  It also checks the batteries for shorted or open cells.  After all cells are checked and verified they are OK, the unit kicks into the fast charge mode.   When voltage reaches a point the batteries are fully charged, the unit goes into a maintenance mode.  The RCL-7A is a must for all diving commands who required batteries to be ready when they need them.