Dewalt DCB240 20V Max* Compact 4 Ah Battery (2 Pk)Dewalt DCB240 Power your 20V MAX* tools with a high capacity 20V MAX* Compact 4Ah battery that features state of the art lithium ion technology, a compact size, and a LED Fuel Gauge Charge Indicator. Designed compact for maneuverability in tight spaces and overhead applications, this battery is backed by a 3 year limited warranty. Features 4 Amp hour (80 Watt hour) capacity provides extended runtime Same size weight as DCB230 20V MAX* compact 3Ah