Couldn't find a model so I made one real quick, using it to convert a powerwheels truck from 24v to 40v, used spade connectors glued into mate up to the positive and negative ports, added holes for ¼'x20 bolts to mount it, it's a snug fit for the battery but it works great for my application, printed with 3 walls with 25% gyroid infill with no supports