[rohrmann]

We rarely dry camp, and have had the maintenance free RV/Marine type batteries since we purchased our rig. Initially, the dealer installed two group 24 Centennial batteries, and prior to our first Quartzsite trip, I upgraded them to the Centennial group 27. So, almost always plugged in, and the batteries last us around five years, and never have to water them, so I am happy not having to mess with them. Sure, if you do serious boondocking, get the better batteries, even lithium if your wallet can do it, but otherwise, do what is easiest for you.