The RB1250X4 contains four 12V/5Ah batteries, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The pre-assembled cartridge installs easily into your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1250X4 comes with instructions, recycling information, and an eighteen-month warranty. Battery Capacity: 5 Ah Voltage Output: 12V