Amazon.com: Replacement for Vision CP645 Battery - Replacement UB645 Universal Sealed Lead Acid Battery (6V, 4.5Ah, 4500mAh, F1 Terminal, AGM, SLA) - Includes Two F1 to F2 Terminal Adapters : Health & Household
6 Volt 4.5 Ah Sealed Lead Acid Rechargeable Battery - F1 Terminal
Amazon.com: M1 6 Volt 4.5 Ah SLA Replacement Battery w/ F1 Terminal : Health & Household