Designed for the CyberPower OR1000PFCRT2U UPS system, the CyberPower RB1290X2C UPS Replacement Battery Cartridge contains two 12V / 9 Ah batteries. This sealed lead-free battery cartridge is OEM certified, meeting the original manufacturer’s specifications. The casing is leakproof while the battery fluid is maintenance-free. The preassembled cartridge installs easily into your CyberPower UPS system. It is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. This battery cartridge is covered by a limited 18-month warranty, which covers defects in materials and workmanship under normal use and conditions, starting from the purchase date.