Its a simple system..I simply drilled out the extra mounting locations and use an 8/32 machine screw and Velcro straps to wrap around the battery. You take the Velcro, cut to length to hold your battery, and fold it in half. At the center, you snip the Velcro, and push the screw thru. Pop that thru the OPQ frame, and throw a matching nut on the other side. Simply, quick, and cheap...and effective!