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Old 12-18-2019, 01:22 PM   #7 (permalink)
Hersbird
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Join Date: Feb 2014
Location: Missoula, MT
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I don't know of any EVs that have the ability to use the energy in the battery for anything other than moving the car. Maybe some have a single low amp 110 outlet on a converter. Maybe barely enough amperage to run a small flat screen. I think you would spend more trying to get that working than just buying a couple nice Li-on 12 volt house batteries and a solar setup on the roof. As far as charging while driving again, I think you would spend more trying to reverse engineer applying just enough brake but not too much. Just but a $400 generator if the EV doesn't have one, and run it while driving with an extension cord going back to the normal charging port on the car. The added drag on the RV with the EV trying to regen brake is going to use as much gas as a smaller inverter generator. My 2400 watt Westinghouse will run 6-8 hours on a little more than a gallon loaded and it automatically throttles based on load.
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