The DEWALT DCB204 20V Max XR Lithium ion Battery Pack is a high-quality power tool accessory designed for convenience and efficiency. With a 4 Ah battery capacity and a voltage of 20V, this battery pack offers long-lasting power for various power tools and equipment. Its sleek black and yellow color scheme and lightweight design at 1.42lbs make it easy to transport and use in various home and garden projects. The lithium-ion battery technology ensures reliable performance and durability, making it a dependable choice for all your workshop needs.