Amazon.com: UPSBatteryCenter Compatible Replacement for Interstate PC640 6V 5Ah Battery : Health & Household
CAMPING CAR ITINEO PC640 SPIRIT EDITION - Sud Loire Caravanes
Interstate Batteries PC640 Battery - Replacement for UB645 Universal Sealed Lead Acid Battery (6V, 4.5Ah, 4500mAh, F1 Terminal, AGM, SLA) - Includes Two F1 to F2 Terminal Adapters : Amazon.ca: Electronics