HOMEPowerUPS 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 VIEW ALL UPS Accessories