Multiboard mount for Ryobi 40v batteries. This is Very strong and can hold the 6ah easy.

Print it with 3 walls, 15% infill and tree supports, the tree supports come off pretty easy

Print 1 or 2 "13 mm Small Thread, Flat Head, T-Bolt" to secure it in

https://thangs.com/designer/Keep%20Making/3d-model/13%20mm%20Small%20Thread%2C%20Flat%20Head%2C%20T-Bolt-974236