This is our Jayco Escapade Battery Compartment. Left is Forward, and the Battery is just behind the rear dual wheel mud flap. It's exposed to spray and road dirt. The rubber gasket in the middle is supposed to block the cable storage off as a clean compartment. That actually works pretty well.
Bill took advantage of the extra space next to the compartment by cutting the side of the coach and installing a bigger door with frame. Looked original when done, and that's Bill. I don't see any reason you couldn't use a non-matching door as long as it came complete with frame and the wall mounting was the same.
The battery is pulled out a little so you can't see how the pin in the zinc plated catch drops into a hole in the battery tray frame. Look to the left of that catch and you see the four holes Jayco used on higher line coaches to install a catch when they put the tray on slides. On Escapade, all they did was drive a self-drilling-self-tapping screw down through the tray into the frame. Getting those out was the worst part of the project.
You can see how I spaced the slides using plywood shims, and a couple other pieces of plywood to keep the battery from sliding around in the tray. It did not have any form of hold-down bolts.
Best part, I could justify buying a cordless right-angle drill to be able to make the slide mounting holes in the sides of the compartment. Harbor Fright, about $25 and actually works very well.
