Black and Decker 20v Battery Adapter (USB)

The other adapters available say they are compatible with both craftsman and black & decker. Well, they didn't fit my black and decker 20V batteries. So I made my own.

Designed in openscad, you can customize however you like. The provided files print as left and right sides, so you can gorilla glue the halves together with the circuit and wiring inside.

This is the voltmeter I used: https://amzn.to/31jhuMV