Amazon.com: APC Smart UPS 1000 SUA1000 New Compatible Replacement Battery Pack by UPSBatteryCenter : Health & Household
Battery kit for APC Smart UPS C 1000 & APC Back UPS Pro 1200/1500 replaces
Battery kit for APC Smart UPS X 750/1000 replaces APCRBC116
Amazon.com: APC UPS 1000VA Sine Wave UPS Battery Backup and Surge Protector, BR1000MS Backup Battery Power Supply with AVR, (2) USB Charger Ports : Electronics