The DEWALT DCB208 20VMax 8aH XR Li-Ion Battery is a rechargeable battery pack designed for power tools. It features a high capacity of 8 Ah and operates at a voltage of 20V MAX, providing reliable and long-lasting power for various applications. This lithium-ion battery technology ensures efficient performance and can be used with DEWALT tools that require a 20V battery. The product is brand new and comes with free shipping, making it a convenient and essential accessory for any workshop or job site.