BP48V27-2US 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, SMART2600RM2U, SMART3000CRMXL, SMART3000RM2U, SMART3000RM2UN, SMART3000RMXL2U, SMART3000RMXLN, SMART3000VS, SMART5000RT3U, SMART5000XFMRXL, SMARTINT3000VS, SMX2200XLRT2U, SMX3000XLRT2UA, SMX5000XLRT3U, SU1500RTXL2UA, SU1500RTXLCD2U, SU2200RTXL2UA, SU2200RTXLCD2U and other Tripp Lite UPS systems that specify the use of this battery pack. Offers extended-run UPS operation when used in conjunction with compatible 48V DC Tripp Lite UPS systems Includes heavy gauge cabling with high current DC connectors for simple installation Daisychain connector enables the connection of additional compatible 48V external battery packs to the host UPS Included mounting brackets support rackmount installation in 4 post racks using only 2 rack spaces (2U) Set of optional-use detection jacks automatically configure host UPS systems supporting this feature for one or more external battery packs UPDHDEARKIT option supports 2 point front-rail rackmount installation without rear supports 2POSTRMKITWM option supports balanced 2 point center-mounting in 2 post equipment racks 2POSTRMKITWM option also enables wallmount installation