Describe: Fits Craftsman V20 Cordless Tools.(Not Compatible with Craftsman Old 20v Tools). Compatible with Black & Decker 20v MAX Series Lithiun Batteries.(Not Compatible with old 18v Batteries) The adapter does not support the charging function for Black & Decker 20v MAX 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 Black Decker old 18v Batteries(Different PIN Sorting). Make sure that the battery is fully inserted for normal use The adapter does not support the charging function for Black Decker batteries Package Includes: 1*Adapter (Adapter Only, Battery & Tool Not Included)