[Seth Mallory]

Originally Posted by JCharlton

A suggestion to everyone is to buy a small 12v battery for testing. A lot less dangerous, and easier to handle.

Also, wiring a small switch box with included fuse is a good exercise for your electrical team.

This is why we use 12 volt drills with their battery minus their motors. They come with controls for reversible polarity and variable voltage. Just add fuses and connectors.