5V 100A 64 Channel Prismatic Cell Battery Grading Machine Feature 1) One CPU board, the whole cabinet sends and controls uniformly. 2) There are 64 constant current plates, arranged evenly in four doors. 3) 4 bidirectional inverter power supplies, each for 8 constant current boards. 4) Two keyboard boards, front and rear double-sided operation. 5) A total of 16 pallets, the depth of the pallet is 22cm, the epoxy board is attached for insulation, each pallet has 8 channels,