dewalt powerstack 18v max compact battery dcbp034The compact 18V MAX* DEWALT POWERSTACK battery is 50% more powerful, 25% more compact and 15% lighter. This battery features an impact resistant rubber overmolded base and uses revolutionary pouch cell battery technology to deliver double the battery life**. Designed to fit into tight spaces without sacrificing performance, our most powerful, most compact and lightest battery is compatible with the 20V MAX* tools and chargers you already own.