The DataSafe DXC 4DXC-21B is the highest voltage battery in EnerSys highly successful DataSafe DXC 4DXC series. This battery has become an industry favorite for UPS applications, particularly data centers. Its multi-cell, cycle-resistant qualities have proven highly capable, providing reduced equipment and installation costs for customers. With eight square lead-plated copper post terminals, the DataSafe DXC 4DXC-19B lasts for up to 20 years. The DataSafe DXC 4DXC-21B is a flooded lead calcium flat plate battery with heavy-duty plate lug design, optimal grid design, and heavy-duty plate strap design, as well as bolted tin connectors. The battery comes equipped with the Slide-Lock post seal design and a 100% capacity rating at initial discharge.