Max-4,
Here is a simple way to find out.
1. fully charge the battery bank on shore power.
2. Plug the RV into a kill-a-watt meter. Plug the meter into a 15 amp shore power circuit.
3. Leave the fridge and converter running for 4 days. Use the lights and other low loads as if you were dry camping.
4. Read the number of kilowatt hours used. That will be the consumption. Divide the number of watt-hours used by 2.
5. divide that number by 5.
That may be the minimum number of watts of solar necessary.
It also infers the size of the battery bank in watt-hours.
I would definitely spring for the dual battery bank feature. See if they can make it group 29 size?
