Convert a battery drill to wall power

Step 4 Playing with fire

Cut the end off the power supply. If I had the parts, I might have put a jack in the drill. Instead, it's perminent.

Strip and tin the ends of the wire. Sand, flux and tin the battery conecter. If you prefer, you could remove the battery clip and solder wire to wire instead.

Solder the power supply wires to the battery clips. Try and figure out why it doesn't work. Test power supply with multi-meter. Re-solder wires the other way...

Sorry, no picture of me soldering. It takes me two hands to solder and two more to hold the camera.