See Battery #1, Located Btwn 1st and 2nd Port Seat Hatch

Used 2 inch aluminum angle iron which was glued in place with 3M 5200. Also put a small piece of plastic under battery cases to spread the load and allow the batteries to slide easier. I did wax the plastic. Also, note the board placed above the battery case. This board holds the battery in place. I have a small pin drilled through the top of the seat which holds the board in place.

See Area Where Battery Is Placed