Boost your AGM, GEL, and WET 12V vehicle batteries with the push of a button. This DXAE20VBBK Battery Booster Kit is a 3 in 1 solution. It includes the Booster, 20V XR 5 AH DeWalt Battery + DeWalt DCB115 Battery Charger. Using a fully charged 20V battery, just connect the clamps to your vehicle battery and press the BOOST ON/OFF button and you are ready to boost your battery in a hurry from virtually anywhere. Additionally you can power up your devices with the dual USB charging ports.