HOMEPower Supplies & AccessoriesUPS AccessoriesNETYS PR-RT EXT BATTERY 72V - 2.2/3.3kva, no rail (up to +2) Socomec 17-11447 NETYS PR-RT EXT BATTERY 72V - 2.2/3.3kva, no rail (up to +2) SKU #17-11447 Oh oh! That product is no longer available... Check out these alternatives Powershield PS1MBSWPB6K Wall Mounted External Maintenance Bypass Switch 6kVA Details Powershield PSCEBB40NB Extended Battery Module For PSCE6000, PSCE10K, PSCE10KNB.... Details Powershield PSMBS2K External Maintenance Bypass Switch for 1kVA or 2kVA UPS R... Details Powershield PSMBS3K External Maintenance Bypass Switch for 3kVA UPS Rackmount... Details VIEW ALL UPS Accessories