[sourdough]

Leave mine plugged in all the time. If the converter works right the water in the battery(s) will be just fine but you need to check it/them frequently to find out what your particular setup does. Unplug them and the WILL completely discharge which is very detrimental to their lifespan. You could remove them, but in my trailer that is a real pain so I just leave them plugged in and check them periodically. Example; stayed in FL for 5 months and never checked. Fully prepped before leaving and checked immediately upon return. All full, all in excellent shape - But, that is not to imply you can just do that. I have had faulty batteries, burned up batteries, bulged batteries and leaking batteries. These are new and I keep an eagle eye on them.