I am planning on installing a set 45W solar panel on my RV and have a voltage regulator. I will be purchasing the charging control soon. The thing that I am wondering about is the potential for creating a conflict between the trailer's current 120VAC to 12VDC inverter and the charge control from the solar system. I was wondering if anyone knew of a product that could be used in conjunction with a standard charge controller or a specific product that would keep the overcharge protection from both units from defeating each other. I have thought about custom making a low voltage relay unit that will close the 110VAC circuit to the trailer inverter when the solar cells are producing power, but I thought that someone has to have produced some sort of unit to deal with this problem.
I am living full time in my 27 foot travel trailer. Last summer I had a solar panel and a digital solar charge controller. I also had my batteries upgraded from 12 volt to 6 volt (not sure if that is correct). I expected the batteries and panel to keep my refrigerator running at all times and maybe I could even run my TV while dry camping. I guess I should have known better since the only things the batteries run are the lights and the furnace fan and other minor systems. Is there a way to allow the batteries to run the refrigerator and the wall outlets. Thank you.