For Craftsman 20V to 12V 10A 120W Step Down Voltage Converter Battery Regulator
Perfectly compatible : work with for V20 Craftsman 20V MAX CMCB204 CMCB202 CMCB201 CMCD700C1 CMCS500B Li-ion batteries. Easy to install ,locks on you battery very well. (This converter set Battery NOT Included).