The RB0690X4B UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB0690X4B contains four 6V/9Ah batteries, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The batteries install easily into your CyberPower UPS system and are shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB0690X4B comes with instructions, recycling information, and an eighteen-month warranty. UPS CompatibilityPR1000LCDRT1U