Designed for their PR500LCDRT1U UPS system, the RB0690X2A UPS Replacement Battery Cartridge from CyberPower contains two leakproof and sealed lead-acid batteries with a capacity of 6V / 9Ah. They are OEM-certified to the manufacturing standards of your UPS’ original battery, its pre-assembled cartridges can be installed by the user, and the battery fluid does not require maintenance. Included is reusable packaging, which provides for the delivering of expired batteries to a recycling center, and protection is provided by a limited 18-month warranty, which covers defects in materials and workmanship under normal use and conditions, starting from the purchase date.