Over charge batteries?
Unfortunately, there is no one size fits all. What is a tremendous amount of boondocking power to some is barely enough to others. Then there is the lifestyle factor, some folks don't want to gas, run and listen to a generator, others its no big deal. And each RV is different based on its size to what it can carry onboard. Then there is how much a person boondocks versus camps hooked up.
A set it and forget it system is possible, just takes the money to have someone do a thorough energy audit for your needs then install all the equipment to allow the least monkeying around by the end-user.
Generally to get a reliable system with the least user required maintaining/monitoring the more pricey the build. That's why you see DIY guys like me getting manually involved in our systems to keep the costs down and prolong the life of our batteries.
It's like a car, some tinker with it and DIY their own maintenance and some just use it and drop it off at the garage. Unfortunately, there aren't that many decent "garages" for RV boondocking systems around as its a relatively new thing to have such complexity of RV power systems. For many years it was just a single lead-acid battery or a few more and a generator.