Adding solar.
I have upgraded to an MPPT controller, and put in a 50 amp model so I can add more panels. The new ones are not up yet, but I've got them. I matched the size and output of the two 150 watt panels with two Newpowa 150 watt panels.
The wires coming down from the roof are fine stranded #6, so I plan to run all the panels in parallel to minimize losses from partial shading.
The controller also has a monitor that I mounted next to the electrical panel door, on the fridge cabinet, facing the sink.
Meanwhile, I've been making electric coffee (very decadent), with my new little Mr Coffee 5 cup coffee maker, that sits on the dinette table and plugs into the inverter plug on the wall. It draws 650 watts for six minutes to make a pot of coffee. I want to see if the existing 300 watt system can keep up, before I install the other two panels. I like it because clean-up requires vey little water and it is so easy to use, besides making great coffee. They are available at Walmart for $17.88 and have clocks to auto start in the morning. It also keeps the coffee hot for about an hour. All this seems so ordinary for home use, but it is special in a trailer. Sitting there at the dinette in the morning, looking out across the desert, with a pot of coffee right there on the table, as I write, look at maps, and get ready for that day's adventure, is fun. "Camping" in a Black Series trailer, is more accurately described as living in a mobile luxury apartment.