What is the best Solar Powered Battery Tender for Deep Cycle Batteries?

[winnieslave]

I have several questions related to this same issue as I am getting ready to go off grid in my 1998 Winnebago Brave SE 29A. I want to know what the best solar powered battery tender is for deep cycle house batteries and for my starter battery or if I even need them?
Will my built in gas powered generator charge my batteries while running it? Will I need to run my RV to keep the batteries charged?
Thanks
Winnieslave