Adapter for 20V Black and Decker battery to Bauer Tool - Prototype

thingiverse

I have some Black and Decker 20V batteries so naturally I don't want to get into the Bauer stuff but I did want their inflator. This is a first go at getting the interfaces right. There is a bit of optimization to do and the bauer part is especially snug but these work. WARNING - BE VERY CAREFUL OF WIRE POLARITY The Bauer battery has the terminals on the opposite sides to the Black and Decker. This is not finished yet but I've been waiting on this project for a while so decided to get it into a minimal working configuration. Also, I especially want to adapt the Black and Decker part to alternative power provisioning options (USB and 20V for my TS100). The spade connectors are Qibaok brand 6.3mm brass though I think any standard spade connector should work. Note that the wide part of the connector fits into the holes to provide added length. The spring clips are listed as BC-5209MS The clips require a little alignment and force to get into place and then I added hot glue to help prevent them working loose. The spade connectors were also hot glued as they are pretty loose as-is. There's not much to work with. The two parts have no joining mechanism as yet so they were simply super-glued together. Note that this design allows the thermistor in the battery pack to be monitored by the equipment in-use. I have not been able to verify that this is 100% compatible but it apparently is working for my battery and tool.