Compatible Replacement Battery Pack for APC Back-UPS RS 1200 RS1200 by UPSBatteryCenter New compatible replacement battery pack for APC Back-UPS RS 1200VA For use with UPS model #: RS1200 (Make sure this is the exact model #) In-Stock and Ready for Immediate Shipment - 1 Year Warranty included! Arrived assembled and ready for use - Hot Swappable, No Downtime Required Manufactured & sold exclusively by UPSBatteryCenter