If you keep your trailer plugged into the truck while using shore power does this create any problems for the charging system or any other problems? Thanks in advance.
Yes, to a point. I'm not sure that the charge wire will allow enough current to charge the trailer batteries in a reasonable time. When you are driving the highway you are charging the trailer batteries. I don't know if you want to let your truck fast idle for a period of time to charge the trailer batteries. Sounds like you are a candidate for solar.