Keep your tools charged and ready to go in a moment's notice with the V20* 4.0Ah Battery and Charger Kit. Conveniently track charge status with LED indicators on both the battery and charger. Premium-grade high-performance cells provide optimal power and long cycle life. The V20* 4.0Ah Battery and Charger Kit is compatible with the CRAFTSMAN® V20* cordless power tool and outdoor tool lineup.