Amazon.com: Replacement for APC Smart-UPS 750 SUA750I Battery - Replacement UB1280 Universal Sealed Lead Acid Battery (12V, 8Ah, 8000mAh, F1 Terminal, AGM, SLA) - Includes Two F1 to F2 Terminal Adapters :
Amazon.com: APC UPS Battery Replacement, RBC48, for APC Smart-UPS SMT750, SMT750US, SUA750 and select others : Electronics