I put solar on my rv. My dream system was to be able to simulate the camper being connected to a 30 amp service. I discovered that I could get a all in one unit giving me everything I wanted a 3500 watt pure sine inverter a 80mpp solar charger a 40amp ac powered charger for about $700. I added used solar panels and 4 fla batteries and I was in business. I have upgraded batteries since then. It’s a great learning experience.