Battery boxes are super heavy duty and offer easy access to batteries from the side of the truck. Boxes are available with or without steps. Battery boxes are available in different sizes and can be ordered in custom sizes as well. These semi-truck and semi-tractor battery boxes feature engineered aluminum construction; fully welded seams and corners; strut grip steps or no steps; rubber heavy duty lid latch kit; easily removable lid; reinforced bottom channel; battery holder 1.5" strap for group 31 batteries. Mounting kit not included.