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
MIGHTY MAX BATTERY 6V 4.5Ah UPS Battery for Vision CP645 - 10 Pack MAX3427247 - The Home Depot