2020 Ford Transit 150 cargo van converted to a 2 person & (dog) RV. Rv has 12v ref/freezer 14000BTU A/C heat pump, can connect to shore power. 12V 100Ah LiFePO4 Battery. 1200W Pure Sine Wave Inverter with Transfer Switch. We went from the east coast to the west and back in May. The RV has 75000 miles. was just PA inspected and service with new battery. Also has a microwave and sink with cold water.