Features: The Adapter Compatible with Ridgid 18v Battery Pack.(Not Compatible with Ridgid 18v Advanced Batteries). Only Fits WORX 20v USA VERSION Cordless Tools. (WARNING: Not Applicable For WORX 20v European Version Tools). Material: ABS Mold Injection Production + 3D Print. 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 Ridgid 18v batteries (please use the original charger) WARNING: Not Applicable For WORX 20v European Version Tools). Not Compatible with Ridgid 18v Advanced Batteries.(Different PIN Sorting & Size). 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 When you need to charge the battery, remove the converter Package Includes: 1*Adapter (Adapter Only, Battery & Tool Not Included)