EXTERNAL BATTERY PACK PROVIDES EXTENDED RUNTIME: Offers extended battery runtime when used in conjunction with expandable 24V Tripp Lite rackmount and tower UPS systems. Included daisychain connector enables the connection of additional compatible 24V external battery packs to the host UPS. UPS COMPATIBILITY: This Extended Battery Pack Module is compatible with: OMNIVS1500XL, OMNIVSINT1500XL, SMART750RMXL2U, SMART750XLA, SU750RTXL2U, SU750RTXLCD2U, SU750XL, SU1000RTXL2UA, SU1000RTXLCD2U, SU1000XLA, SU1000XLCD, SUINT1000RTXL2UA and other Tripp Lite UPS systems that specify the use of this battery pack. EASE OF USE: Package includes heavy-gauge cabling with high-current DC connectors for safe, simple installation. RACKMOUNT OR TOWER INSTALLATION: Included mounting accessories support 3U rackmount installation in 4 post racks. Options for 2 post center-mounting and upright tower installation available. Seperate 2POSTRMKITWM accessory option supports balanced 2 point center-mounting in 2 post equipment racks. Upright tower configuration supported with optional 2-9USTAND accessory sold separately. RELIABLE PRODUCT FULLY BACKED AND SUPPORTED: This product is covered by a 2-Year Limited Manufacturer's Warranty and is supported by Eaton's expert technical support team over phone, web and email.