eReplacements Compatible Sealed Lead Acid Battery Replaces APC SLA23, APC RBC23, for use in APC Smart-UPS SU1000R2BX120, SU1000R2IBX120, SU1000RM2U, SU1000RMI2U, SUA1000RM2U, SUA1000RMI2U, SUA1000RMUS