The BTF battery box is a very cool looking and safe way to mount your Optima battery.  This battery box is strong enough to be mounted in any position.  The battery box could be bolted down through 6 laser-cut holes in the bottom of the box or it could be welded to a battery tray.  The Optima battery is held in with a clamping action to ensure the battery stays where you put it.  It is formed on a  from 1/8" high-strength steel plate.  Battery clamping hardware is included.