The RB1290X8 is a high-quality replacement battery cartridge designed specifically for CyberPower UPS systems. It contains eight sealed lead-acid (VRLA) batteries, each rated at 12 volts and 9 amp-hours, ensuring reliable power backup and extended UPS life. This cartridge is leak-proof and maintenance-free, eliminating the need for fluid replacement. The pre-assembled design allows for easy installation, restoring your UPS system’s performance quickly and efficiently. Additionally, the RB1290X8 comes with clear instructions, recycling information, and an 18-month warranty for peace of mind.




REGULAR PRICE $761.21
(You Save $278.51)


REGULAR PRICE $761.21
(You Save $278.51)


The RB1290X8 is a high-quality replacement battery cartridge designed specifically for CyberPower UPS systems. It contains eight sealed lead-acid (VRLA) batteries, each rated at 12 volts and 9 amp-hours, ensuring reliable power backup and extended UPS life. This cartridge is leak-proof and maintenance-free, eliminating the need for fluid replacement. The pre-assembled design allows for easy installation, restoring your UPS system’s performance quickly and efficiently. Additionally, the RB1290X8 comes with clear instructions, recycling information, and an 18-month warranty for peace of mind.