I'm new to RVing and have never owned a TT.
Sorry I don't remember exactly the batteries but both are flooded deep cycle. I can certainly upgrade them to AGMs for extra $$. The 6V are Trojan and the 12V from memory is interstate (could be wrong). I do not know the exact size of either battery and I do realize the importance of knowing that and the resulting AH. I guess I was just asking a more basic question, which seems to be pick the 6V.
I do have some reading to do and will look into the link. Maybe I missed something but wouldn't a generator (3000W) sufficiently recharge a battery bank even without shore power?