Description The DCB240 20V MAX* 4Ah compact lithium ion battery provides the highest capacity within the DEWALT 20V MAX* compact lineup. Using state-of-the-art lithium ion technology, the DCB240 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. Battery and charger include 3-year limited warranty.