Ryobi battery stand

I have several Ryobi batteries that i wanted to store neatly on the shelf instead of screwing them to a wall. This is my first design, while learning to use FreeCAD.The design is meant to be modular so you can stack the batteries vertically.In my 3mf file i have strengthened the joints, otherwise used Lightning as infill pattern to save material. I have also positioned the models for minimum support.I recomment using Inner/Outer/Inner option for the walls printing order.Please post your makes :) Let me know if the dimensions are good. <3