Brand New APC Back-UPS ES USB 650VA compatible battery by UPSBatteryCenter UPSBatteryCenter APC Back-UPS ES USB 650 Compatible Replacement Battery - 100% Guaranteed Compatible Will work with: BE650BB Easy Installation, Exact fit - Plug & Play Arrives fully charged and ready to go - (1) Year Replacement Warranty! Manufactured & sold exclusively by UPSBatteryCenter