Features: Work with Craftsman V20 Lithium Batteries Pack.(Not Compatible with Craftsman OLD 20V Batteries) Suitable for Ryobi 18V Series Cordless Tools Professional compact design and easy installation. For a long time don't use, please separate from the battery. The adapter doesn't support charging for Craftsman V20 batteries (please use the original charger) WARNING: Please don't try to use Craftsman OLD 20V Batteries (Different PIN Sorting) Make sure that the battery is fully inserted for normal use Please do not force into the battery pack, if the battery pack can not be installed, the installation method may be wrong This product is only compatible with the tools, not compatible with the charger, Don't use the adapter to charge the battery When you need to charge the battery, remove the converter Package Includes: 1 Adapter (Adapter Only, Battery & Tool Not Included)