I designed these battery holders for Harbor Freight's Bauer line of tools, with the idea that the batteries lock into place, thereby allowing you to mount them upright and slide the battery in from below. This way you can see the power level indicator, as seen in the pictures. Can also mount them horizontally so that you insert the battery from the back, again allowing you to easily check the power level

Comes in 2 styles. One uses 2 #8 screws to mount. The other is designed for use with MultiBoard using 2 T-Bolts to mount, found here: https://thangs.com/designer/MultiBuild/3d-model/9%20mm%20Small%20Thread%2C%20Plain%20Head%2C%20T-Bolt-974363

V1 is a snug fit. V2 has slightly looser tolerances to make it easier to insert and remove the battery

Printed with PLA, 0.4mm nozzle, 0.2mm layer height, 3 walls, 6 top/bottom layers, 10-20% infill. If printed flat, be sure to use supports with "only on build plate" NOT selected. If printed on it's end, supports are not needed