2x Pack - Compatible Chloride 6V4.5AH Battery - Replacement UB645 Universal Sealed Lead Acid Battery (6V, 4.5Ah, 4500mAh, F1 Terminal, AGM, SLA) - Includes 4 F1 to F2 Terminal Adapters - Walmart.com
Amazon.com: Sunnyway SW645 6V 4.5Ah Sealed Lead Acid Battery - This is an AJC Brand Replacement : Automotive
CSB GP 645 Battery 6V 4.5Ah Sealed Lead Acid | OSI Batteries
Mighty Max Battery 6V 4.5Ah UPS Battery for Vision CP645 Rechargeable Sealed Lead Acid 645 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
UPG 6-Volt 4.5 Ah Sealed Lead Acid (SLA) AGM Rechargeable Battery UB645 - The Home Depot