I doubt the hull weighs a pound,anyways ,I gutted it without a problem,except for the servo,which was glued to the hull and not mounted correctly,there was a mount glassed into the hull that wasn't being used properly,so I had to rip out the other servo with pliers and dremel out all that glue and use the mounts correctly.here is a comparo pic of the batteries,the top one is the one that fits,2 should work nicely.