Originally Posted by Huntsvillian
Anyone aware of any issues leaving the RV hooked up and the batteries still connected?
The answer is: it depends.
On my motorhome, the converter charges at 13.6v 24/7/365. That's hot enough to fry the battery over a number of months if the water level isn't closely monitored. You'll need a "smart charger" or controller add-in (on some Jaycos) to treat the battery a little better.
It's probably better to disconnect when stored and reconnect for charge every few weeks/month.
Regardless, stay after the water. It's not the same as a car battery.