The 20V MAX Starter Kit includes the Dewalt 3.0 Ah Compact Battery and Charger. Using the latest in lithium ion technology, this battery provides 3.0 Ah capacity in a compact form, offering ergonomic benefits. The 3-LED Fuel Gauge system on the battery allows you to instantly check the battery state of charge. The included charger features quick charging with a multi-function LED indicator to display charging status, when to replace the battery pack, and battery temperature.