Fridge 110 ?
Click on the article "Fridge on 12 volt warning"
Fridge on 12V Warning Top of Page
The 12V operation for the fridge (the red switch) should be used only when the camper is hooked up to the tow vehicle's wiring plug, the tow vehicle has a hot lead/charging circuit, and the tow vehicle's engine is running.
The tow vehicle's alternator has enough power to run the fridge continuously. A 12V deep-cycle marine battery (without being recharged by an alternator or battery charger) will run the fridge (poorly) for about 6 or 7 hours before the battery is completely dead. Thus, the 12V should be only an "on the road" option for the fridge.
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