How To Charge Travel Trailer Battery With Tow Vehicle at Traveling

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How To Charge Travel Trailer Battery With Tow Vehicle. Now, the other red clamp belongs to the positive pole of the car battery. Recheck the voltage, and if it is higher than the starting number, your tow vehicle is charging the battery.

Open Roads Forum Travel Trailers Tow vehicle
Open Roads Forum Travel Trailers Tow vehicle from www.rv.net

I chose this solution, and used 64 feet of #2 welding cable, to run from the truck engine's alternator back to the positive terminal of the trailer batteries, and then from the negative terminal of the batteries back to a solid engine ground in the truck. After replacing the charge line wires, it dropped from 15 amps on hooking up to 2 amps. The rv batteries charged with solar panels or additional batteries must allow for minimum loss of power while transferring.

Open Roads Forum Travel Trailers Tow vehicle

You should be able to measure across the battery and find 12 volts when not charge is going in. Then, it must enter absorption (charging at high voltage) from 80% to 95% and then float (maintain capacity without overcharging) from 95% to 100%. Nowadays, there are two basic common methods of charging the battery, either through the solar panel or, through additional batteries. I wouldn't recommend more than 20amps through this wire though.