I have room in the front of my pickup bed for 10 group 24 FLA batteries. Seems like they should be in some kind of box to to keep the acid from destroying the bed. I guess I could make one out of sheet metal but not sure it would last too long. Also do I need some kind of drain in the bottom? When I had an electric motorcycle it really made a rusty mess on the driveway since the batteries weren't enclosed . I already have half of the batteries so SLA isn't an option. Together the batteries will measure about 18" X 50" Any ideas on the type of materials etc. that have been used?