Features: Suitable For DeWalt 20v MAX XR Slider Lithium Battery Pack (Not Compatible with 18v Ni-CD Battery). For Bauer 20v MAX Platform Cordless Tools. Professional compact design, Built-in removal tool release switch. Make full use of your 20v MAX XR Series battery to extend Bauer 20v tools work efficiency and reduce downtime adapter doesn't support charging for DeWalt 20v MAX batteries (please use the original charger) WARNING: Not Compatible with Any Black&Decker Batteries and DeWalt 18v Ni-CD/Ni-Mh Battery (different pin sorting & size). adapter does not support the reverse charging function, please use the original charger Make sure that the battery is fully inserted for normal use When you need to charge the battery, remove the converter Package Includes: 1*Adapter (Adapter Only, Tool & Battery Not Included)