This battery adapter for Craftsman battery to for Ryobi battery,convert For Craftsamn 20V battery to for Ryobi 18V cordless series tools use. Perfectly matched for Craftsman 20V Li-ion Batteries. Power by for Craftsman 20V Li-ion battery, work with CMCB202 CMCB204 CMCB206 CMCB209 and more; Replace for Ryobi 18V Lithium-ion batteries.
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