I installed two Renogy 150 watt solar panels 3 years ago on our 2016 Chateau 31L. Renogy charge controller.
Cobra 1500 watt modified sine wave inverter.
Two Interstate Group 27 (SRM27) flooded batteries.
MH came with two Group 24 batteries.
I don't have an area large enough or strong enough to go with a bigger battery bank or AGM batteries.
This setup will allow viewing of the TV and using a disc player most of the day. Additionally, it will support a Dell laptop, wifi hotspot, charging of cell phone and tablets and a handheld ham radio.
There is not enough room on the roof for solar panels or an area in the rig for a battery bank large enough to support using the air conditioner.
When we camp in the forest or some areas along the coast, especially this time of year, we do not have enough sunlight to provide 8-10 hours of adequate charging time to keep the batteries topped off. So we will run our small 2kW Yamaha generator a couple of hours before going to bed. This allows us to run the heater in the morning. If the outside temp gets below 40 during the night the furnace may come on when it hits 55 inside. If needed we will run the onboard 4kW generator to ude the microwave or run the furnace for an extended period of time.
During the summer if we need to use the AC we will run the 4kW generator. Otherwise there is enough sun that we do not have to run either one of the generators.
This setup meets our specific needs and lifestyle right now. Someday I will get around to connecting the solar to the chasis battery.
Dave and Chris
US Navy (Ret),