I am wanting to add a second battery to my TT to increase the amount of time I can run off of 12 volt. Anyone else done this and what size batteries should I be looking at??
I have a new Palomino bunkhouse and switched to 2 each 6V 235amp/hour batteries in series. They use group 27 cases and I purchased some longer cables so the tops seal. I get about 3-4 days of use out of them and keep a small generator at the site to charge them when dry camping at the race track. Gets me everything but my 120V switches, A/C and microwave.