APC SUA1500I Battery Smart-UPS 1500 | OSI Batteries
APC Smart-UPS 1500 I (DLA1500I) New Compatible Replace Battery Kit w/ Harness | eBay
Amazon.com: New Battery Pack for APC Smart-UPS X 1500VA Rack/Tower LCD 120V SMX1500RMUS Compatible Replacement by UPSBatteryCenter : Health & Household