The RBC12 Replacement Battery Cartridge #12 from APC is tested and certified for compatibility to restore UPS performance to the original specifications. It is designed by APC by Schneider Electric for APC UPS's for complete compatibility with the intelligent battery management system. The cartridge is compatible for use with APC2IA, APC2RA, APC3IA, APC3RA, APC3TA, DL5000RMI5U, DL5000RMT5U, SU2200R3BX120, SU2200R3IBX120, SU2200R3X106, SU2200R3X147, SU2200R3X152, SU2200R3X167, SU2200RM3U, SU2200RMI3U, SU2200RMUS, SU3000R33IX160, SU3000R3BX120, SU3000R3BX135, SU3000R3IBX120, SU3000R3XI45, SU3000RM3U, SU3000RMI3U, SU3000RMT3U, SU3000RMTX136, SU3000RMUS, SU3000RSIBX135, SU5000I, SU5000R5IBX120, SU5000R5T-TF3, SU5000R5TBX114, SU5000R5TBX120, SU5000R5TBX135, SU5000R5TBXFMR, SU5000R5XLT-TF3, SU5000R5XLTXFMR, SU5000RMXLI5U, SU5000RMXLT5U, SU5000RSIBX135, SU5000TX168, SU5000TXFMR, and SU500T.