Hi Gerald and welcome to the RVUSA Forum. I didn't have any luck searching the internet for a schematic of your motorhome so I can't give you an exact answer. The coach battery(ies) for most motorhomes are located behind a hatch on the side of the motorhome. They have to be accessible so you can check the water, do maintenance, etc. Hopefully one of the other forum members will have more detailed info. Check back for their answers and good luck.
well Gerald not knowing what type of MH you have make it hard to help. I have a Fleetwood South Wind and my batteries are under the steps as you go inside the MH. I hope this helps. If you can call the manufacture maybe they can give you some advice.
Don't feel bad Hollis. I made the same mistake when I first tried to respond to this post. Only when I looked at the subject line did I find out what we were dealing with, so I had to edit my response.