Describes: Only For Bauer 20v MAX Lithium Type Cordless Tools. Suitable For Milwaukee M18 RED Series Lithium Batteries.(Not Compatible V18 OLD Batteries). The adapter does not support the charging function for Milwaukee M18 batteries (please use the original charger). Close-fitting & compact design, Built-in tool to remove the release switch. Please do not try to use the adapter for other types of batteries & tools. WARNING: Not Compatible with Milwaukee OLD V18 Batteries (Different PIN Sorting & Size) Make sure that the battery is fully inserted for normal use The adapter does not support the charging function for M18 batteries Package Includes: 1*Adapter (Adapter Only, Battery & Tool Not Included)