The CyberPower RB12120X2B UPS replacement battery cartridge restores life to UPS systems with internal batteries that have become weak or completely depleted. The RB12120X2B 12V/12AH contains (2) two batteries, certified to meet or exceed original manufacturer specifications. All replacement cartridges come with leak proof sealed lead acid batteries that are pre-assembled for easy installation. The RB12120X2B UPS replacement battery cartridge is compatible with PR1000LCD CyberPower UPS systems. Each CyberPower replacement battery cartridge ships with reusable packaging that can be used for delivery of expired batteries to a suitable recycling center. The RB12120X2B comes with instructions, recycling information, and an eighteen-month warranty. OEM Certified compatibility with PR1000LCD CyberPower UPS systems Sealed with leak-proof casing to prolong battery life and ensure safe usage Includes maintenance-free battery fluid; never requires replacement Covered by 18-month warranty