Aodesy Single Battery Holder, 1 x 12V 23A Wire Leads Battery Storage Box Case Slot Holder,Pack of 10

hey I'm selling the house over the past couple of years I've been slowly putting my tools up on the French cleat wall today I'm gonna be storing my big batteries for most of my tools this is a Dee Walt 18 volt that are quite large and I tend to just toss them on my workbench and leave them and I think it's time to make a storage shelf for them so let's go ahead and do that now so here's what I'm thinking I am laying out a board here that is I'm guessing about three and a half yeah three and a half inches so I want to have enough space for these batteries to line up here and what I'm thinking about doing is taking a Forstner bit and drilling a hole down here and they will store upside down so dust and stuff isn't getting into the connection here so to do this I need a little extra room on the side for a triangular piece to go to and then I also need that on the other side so let's just s