How many solar panels does it take to charge an RV battery?

A solar panel, which has a power of about 100 watts, is able to produce on average about 6 amps per peak hour. This can also be translated in about 30 hours per day. In this scenario, it is very likely that you need 2 solar panels (about 100 watts each) to recharge or give all the energy to your VR on an average day.