BP72V15-2U rack/tower external battery pack offers extended battery runtime when used in conjunction with compatible Tripp Lite systems. Multi-use form factor supports configuration in stacking, upright tower and rackmount applications using only 2 rack spaces (2U). Upright tower configuration supported with optional 2-9USTAND accessory. Includes heavy gauge cabling with high current DC connector for simple installation. COMPATIBLE UPS SYSTEMS - SU3000RTXR3U, SU3000RTXL3U, SUINT3000RTXL3U, SU3000RTXL3UHV and other Tripp Lite UPS systems that specify the use of this battery pack.