To continue this gray morning if it becomes necessary to pull the batteries you need to do some homework and take pictures of position of batteries as to plus and minus posts on batteries, mark & tag all cables on their posts and carefully remove them.
If you or anyone else says no problem than
you may wind up in this situation and just have a confusing experience.
Previous poster Mark is correct not knowing how far your coach is from nearest power outlet you need as heavy a cord as possible to feed the power to your battery charger because of voltage drop.
We are going to try and get your batteries charged before working ourselves into battery removal thats the easiest route to follow right now.
Not sure how cold its been where you are, GA., hope not to much freezing weather.
I HAVE ADDED THIS THREAD TO QT'S # 3 these problems come up to often.
Have your popcorn ready.