Compatible with Select APC APCRBC143 UPS Units, No Network Downtime During Installation, Type UPS battery, Technology Lead acid, Voltage Provided 120 volt, Lead Acid Battery Sealed, Leak-proof, Maintenance free Features The Replacement Battery Cartridge 143 from APC is designed, tested, and certified for compatibility to restore the performance of compatible UPS units to their original specifications, which is a 3- to 5-year lifespan.