I’ve got an 15.6 volt drill and of course the batteries have given up the ghost, a new battery or even a cell insert is a ridiculous price so I frankensteined this up. Working like a dream so far. If it lasts any time at all it’s giving me more life out of what was an essentially dead drill and if it continues to work I can keep it going on cheap dewalt batteries.
Looks terrible but hey, it works.