The DCB240-2 20V MAX 4Ah compact lithium Ion battery 2-pack provides the highest capacity within the DEWALT 20V MAX compact battery lineup. Using state-of-the-art lithium ion technology, the DCB240 DEWALT 20V MAX battery delivers up to one-third more run time while maintaining the same size and weight as the DCB230 20V MAX 3Ah compact battery. Its small size and light weight provide ergonomic benefits for increased tool maneuverability and control for overhead applications. The DCB240 includes fuel gauge LED charge indicator and 3-year limited warranty.