B+ motorhomes

To answer Gene in NE -- too frequently we use our RV like an OHV, just because that's where the great places to explore are. As a result we bounce this rig up/down/all over the place. Plus I have been accused of "flying" the rig a couple of time in Mexico (guilty as charged) when some "topes" came at me out of nowhere. When I first went to two batteries they were group 24 12v and I mounted them sideways next to each other on the original battery tray. Used a stout plastic plant tray of some sort cut to size to have the batteries sit up a bit higher and not rest on the tray's angled-up lip. In the course of six months I had to have the battery tray re-welded twice. Both welders said the tray was poorly conceived and even more poorly mounted. Next my two batteries died and I replaced them with two group 27 12v deepcycles from Costco. They hung even further out past the true bottom of the tray but what the heck. A few months later on the way to Prescott, AZ (and then on to Mexico) we took the worst back "road" I have even been on. I pulled over once we got back to "pavement" (and I use that term loosely) to investigate an odd noise. There were the two batteries hanging by the pos and neg cables, with the remains of the tray dangling in a different direction. We made it to Prescott with the help of my bottle jack and four ratchet straps. There we were able to find a hot rod shop owned by a master fabricator/welder. $350 later I had a new and very beefy tray that runs lengthwise and has room for two group 27 batteries lined up end to end. It's also going to hold my two new Costco 6v golf cart batteries (which weigh in at 63# each). So what have I learned? Life's a great adventure.