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 - Walmart.com
APC Smart-UPS 750VA USB & Serial RM 2U 120V (SUA750RM2U)
RBC48 Battery Replacement for APC SmartUPS 750 - YouTube
SUA750I - APC Smart-UPS 750VA USB & Serial 230V | Schneider Electric Global