Line Interactive UPS System, 120V, Network Card, 1U | Eaton
APC BACK-UPS ES 8 OUTLET 500VA BE500R Battery Replacement - UB1280 Universal Sealed Lead Acid Battery (12V, 8Ah, 8000mAh, F1 Terminal, AGM, SLA) - Includes TWO F1 to F2 Terminal Adapters - Walmart.com
Battery for APC 500Va Industrial Din Rail (Sp500Dr) UPS
BE500U - APC Back-UPS ES 500VA 300W Refurbished - 1 Year Warranty