There are many places to get info on solar operation.
Below is just one of the better to explain FAQ.
BatteryStuff Articles | Everything You Need to Know About Solar Chargers
Your location is a large influence on how large your system should be to do the job required.
Any solar panel should have a fuse that can be removed to disable it, to allow maintenance on it and other systems.
"LOVE and LOSS, are two of the greatest emotions one can experience. -- I went to school to learn about "WHAT GOES UP MUST COME DOWN" but I had to live my life to learn the lesson of: 'WITH LOVE THERE WILL BE SORROW'."
David Stewart. (after loosing my NAVIGATOR)