I agree with Herk if you are going to dry camp a lot. Some never dry camp, and seldom use their battery. The Trojan batteries also require more than normal maintenance, as stated on their site.
Apparently you have a generator, or have installed one, so a lot of battery may not be required. If you were satisfied you had enough battery before, put the same back in. If not, look at upgrading maybe. I like Interstate brand. Group 24 or 27 is the size that was in your camper usually. You can go to their web page: Batteries - Interstate Batteries has every battery for every need
and search for a local dealer.
If you melted the battery and got acid everywhere, be sure to clean with baking soda and water, then clean more, and more. Lastly, let dry good, prime and repaint.
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT