I have 4 100w solar panels & 2 1000w batteries that I would like to hook one of them into my trailer only when I use it. Is there a way I can hook it up to my trailer without using the regular power cord? I don't want to use any solar power to go to my 12v lead battery but I don't want to use any power from it either. All lights in my trailer are LEDs, but still on the convertor circuit so 110v or 12v still work. . I guess I can plug into the solar battery and disconnect my main battery or put a switch on it as long as I don't use the AC. Any suggestions? My solar batteries(2) have 3 110 outlets, 2 USBs, one USBC, and a 12v outlet on them. I guess my biggest question is would the convertor pull or use power even when nothing is on or running?