The 20V MAX* DEWALT POWERSTACK(TM) Compact Battery is 50% more powerful, 25% more compact, and 15% lighter**. These batteries feature an impact-resistant, rubber overmold base and utilizes revolutionary pouch cell battery technology to provide twice the lifetime**. Engineered to get into tight spaces without sacrificing performance, our most powerful, most compact, and lightest weight battery** is compatible with the 20V MAX* tools and chargers you already own. | DEWALT 20V MAX POWERSTACK Compact Battery (2 Pack) DCBP034-2