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How Long Will One Battery Run A RV Furnace
Testing one 12 volt battery in winter to find out just how long you can run your RV furnace to stay warm. I ran a 12 volt lead acid battery down to 50% three nights in a row to see how long it will last against the 5 amp draw of my RV furnace. The temperatures got down to 26 Degrees so it was a great test.