[Stripit]

Well, you are going to use a battery much different than someone who dry camps. A set of 6 volt was installed in my trailer when we got it in 2004. Those lasted about 3 years, then a replacement set lasted 4 years, and I just replaced those. We NEVER dry camp and always plug in every night in some campground. In your case, I'd save some money and just replace one 12 volt battery instead of buying the two 6 volt. Had I not "won" a set of batteries at the Lake Havasu rally last month, I would have just bought one 12 and kicked the two 6 volts out.