Trunk Mount Battery - Wire Routing

mopowers said
Do you use a sealed battery box? I'm trying to decide that next - whether to secure the battery directly to the floor, or use a sealed battery box vented through the floor.

I do not have my battery in a box. I use a battery hold down I got at Summit...you can see it in the pic here. Bolts to the floor, neg cable (not in pic) goes straight down to nut welded on frame rail. The fuel cell exit goes out a small cutout in the spare tire well at the rear so the trunk is vented naturally. I figured no need for a sealed box with that vent.
Hope this helps you!