I found 6VDC Golf Cart Batteries at Costco for $83.99 each. I am going to get a pair of them. What size battery boxes do I need for a battery this size? My intentions where to put them in separated boxes, unless they make a single box for the two.
That link is to the ones I ordered, they fit perfect. Get the right box, don't do the group 24 or 27 one that will be too short. I see that the link to the 6V battery box says currently unavailable, so I'll let you google a supply that's available. But at least that gives you an idea of the proper box.
2012 Aspen Trail 2710BH | 280 watts of solar on the roof | 2x6V GC batteries | 100% LED lighting | 1500 & 300 watt PSW inverters | so far strictly boondocking