The RB1290X3L UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X3L contains one 12V/9AH battery, 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 in your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1290X3L comes with instructions, recycling information, and an eighteen-month warranty.

• Leak Proof/Maintenance-free battery characteristics for reliable charging performance with maximum productivity
• Once installed, it requires low maintenance
• With 12 V DC battery, never run out of power and keep your UPS operational at all times