Radically different sized RV solar. Plus solar projects.

I looked at solar maps (min/ave/max) for trip to two NP in WY. At my expected use I could last 4 days @ 10ah/day on one G24, I planned 8 days so I needed another batt or small solar. The maps showed 5-7 kWh/m*m/day flat. A 1A panel was about the same price as another batt. I went with the 15 watt panel tilted which became a maintainer for the many years to follow. As the tree filled in and the batt aged it took longer for the on/off controller green LED to illuminate.