The Eaton Tripplite BP72V18-2US is an external 72V battery pack designed to extend runtime for select Tripp Lite UPS systems. This 2U rack/tower unit is suitable for IT environments requiring additional battery backup capacity for critical equipment. It integrates with compatible SmartOnline 3000VA UPS models, providing a DC connector for single-phase power configurations. Its rack/tower form factor allows for flexible deployment within existing server racks or as a standalone tower unit.