APC Back UPS XS 1500 120V (BX1500G) UPSBatteryCenter Compatible Replacement Battery Pack UPSBatteryCenter Replacement battery pack for APC BackUPS XS 1500 120V - 100% Compatible Guaranteed compatibility with: BX1500G - Find the model # on the bottom of your UPS In-Stock and Ready for Immediate Shipment - 1 Year Warranty included! Hot Swappable, No Downtime Required - Arrived assembled and ready for use Manufactured & sold exclusively by UPSBatteryCenter