TRIPP LITE 2U EXT 48V RACK/TOWER BATT PK FOR UPS Rackmount external battery pack offers extended battery runtime when used in conjunction with expandable 48V Tripp Lite rackmount UPS systems. Includes heavy gauge cabling with high current DC connector for safe, simple installation. Included daisychain connector enables the connection of additional compatible 48V external battery packs to the host UPS. Included mounting accessories support 2U rackmount installation in 4 post racks. Options for 2-point front-rail mounting, 2 post center-mounting and wallmount installation available.Compatible with these UPS Systems - SM2200RMDVTAA, SMART1500CRMXL, SMART2200CRMXL, SMART2200RMXL2U, SMART2200RMXL2UP, SMART2200RMXLN, SMART2200VSXL, SMART2600RM2U, SMART3000CRMXL, SMART3000RM2U, SMART3000RM2UN, SMART3000RMXL2U, SMART3000RMXLN, SMART3000VS, SMART5000RT3U, SMART5000XFMRXL, SMARTINT3000VS, SMX2200XLRT2U, SMX3000XLRT2U, SMX3000XLRT2UA, SMX5000XLRT3U, SU1500RTXL2UA, SU1500RTXLCD2U, SU2200RTXL2UA, SU2200RTXLCD2U, SUINT1500RTXL2UA, SUINT2200RTXL2UA and other Tripp Lite UPS systems that specify the use of this battery pack.BATTERYDC system voltage (VDC): 48Connects to UPS