APC Back-UPS XS 1000VA BX1000G UPSBatteryCenter Compatible Replacement Battery Pack UPSBatteryCenter Replacement battery pack for APC BackUPS XS 1000VA - 100% Compatible Will work with: BX1000G - Model # located on the bottom of the UPS Arrives fully charged and ready to go - (1) Year Replacement Warranty! Easy Installation - Plug & Play - Hot Swappable - No downtime required Manufactured & sold exclusively by UPSBatteryCenter