Amazon.com: UPSBatteryCenter Compatible Replacement Battery Cartridge for APC SUA1500RM2U Smart-UPS 1500 Rack Mount 2U : Electronics
How To Replace & Upgrade Your APC Smart UPS Battery
Amazon.com: RBC7-UPC Replacement Battery for APC Smart-UPS SU1400, SUA1500, SUA750XL, SUA1000XL, SU1400NET, SU1000XLNET - Scroll Down for The Complete List of Compatible Models : Electronics
APC SUA1500 Battery Smart-UPS 1500 | OSI Batteries
RBC7 Battery Replacement for APC Smart UPS 1500 (2Pack)