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Thought 22 - Battery Wall Wart: The finished mess.

To finish up thought 21, I made a battery ended wall wort. At least the simple version just as a proof of concept. And it works.





So here's how you build one:

Materials:
1 Nail, 2 1/2"
1/2" tubing, the kind for water pumps.
1 wall wort, in this case a variable voltage one (thanks Seth).
1 AA battery, for model.

Tools:
Soldering Iron
Wire Cutters
Wire Stripper
Needle Nose Pliers
Hot Glue Gun
Metal Cutting Tool. I used a dremel with a cut off wheel.

Step 1: Cut the end off of the wall wart

Step 2: Strip the ends and mark which it the positive side and which is the negative. Strip with about 1 1/2 inches of exposed wire.

Step 3: Cut the nail in half. Optional: grind down to a smooth even surface.

Step 4: Wrap the positive wire around the pointy end of the nail and solder into place. Soldering to nail my take a while, high heat and pinch with the needle nose pliers.

Step 5: Wrap the negative wire to the head of the of the nail and solder into place.

Step 6: Cut 2 tubes the length of the AA

Step 7: Thread the wire with nail through the tubes

Step 8: Hot Glue in place. This is a little tricky as the nail needs to stay centered in the glue until it dries, and the glue may try to run away a bit.

Step 9: Put the new "AA Batteries" into victim, er device, plug into the wall, turn on the power.

Step 10: Blog about building one these things.




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