Amazon.com: SC1000 - New Battery Pack for APC Smart-UPS SC 1000VA SC1000 - Compatible Replacement by UPSBatteryCenter : Health & Household
APC Smart-UPS SC 1000VA SC1000 Battery - Replacement for UB1290 Universal Sealed Lead Acid Battery (12V, 9Ah, 9000mAh, F1 Terminal, AGM, SLA) - Includes Two F1 to F2 Terminal Adapters : Amazon.ca:
Battery kit for APC Smart UPS SC 1000 and APC Back UPS RS 1500 replaces APC