This 20-Volt maximum starter kit includes a premium XR 6.0 Ah battery, a compact 4.0 Ah battery, 4 Amp charger and a kit bag. Both batteries are compact in size and lightweight, providing ergonomic benefits for increased tool maneuverability and control for overhead applications. The charger is compatible with all DEWALT 12-Volt and 20-Volt MAX Lithium-Ion battery packs, this charger is easy to use, quiet and exceptionally stable with its 4 plastic feet. This kit includes (1) DCB240 battery, (1) DCB206 battery, DCB115 charger and bag. Get more power with the DEWALT 20-Volt maximum Cordless Brushless 7-1/4 in. Circular Saw DCS573B with FLEXVOLT Advantage tool technology.