Features: Suitable For Milwaukee XC/M18 RED Slider Lithium Battery Pack (Not Compatible with OLD V18 Battery). For Bauer 20v MAX Platform Cordless Tools. Professional compact design, Built-in removal tool release switch. Make full use of your M18 battery to extend Bauer 20v tools work efficiency and reduce downtime adapter doesn't support charging for M18 batteries (please use the original charger) WARNING: Not Compatible with OLD V18 Batteries (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)