major RV's mostly use the 6V golf cart batteries, higher amp hours and true deep cycle, the 12V "deep cycle" batteries, aren't .... look for batteries rated in 'AH', not CA or CCA ... 4 in series/parallel is what I'm starting with in daBus, eventually prolly have 8, with solar charging

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics