We store our coach at home in our driveway. Our single solar panel is rated at 110 watts with a Blue Sky Solar Boost 2000E 25 amp controller which includes a battery equalizing mode.
The Blue Sky manual recommends the charge voltage to be set at 14v. I leave both house & chassis battery disconnect switches in the ON position.
The controller also has a switch to display charge amperage. When batteries are fully charged amperage reading is 1.5-1.8 amps.
We've had the solar system since 2005 and to date it's performed flawlessly.
Let us know when you get your solar charge issue resolved..
Best of luck & safe travels..