How to make welding machine using only 12V Battery

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27 Comments

  1. Hello i Think This little Battery will be damage under this permanent Heavy Load

  2. This battery reconditioning program exceeded my presumptions. It worked on any drill battery, several AA and AAA batteries, batery.repair and any camera battery. The steps are simple and the act itself is exciting to do. No matter what type of battery you`ve got, it is sure to function again!

  3. Just add a diode (simplest type, so-called rectifier diode of at least 8A) in series (you can solder its minus pole on "+" of the battery and then the cable on the "+" of the diode). This way nothing changes much, only the battery is better protected from short-circuiting.

  4. Thank you for idea I just need a welding UV helmet to protect my eyes & face. Hm many projects I may endeavor about sounds delicious

  5. Felicitaciones.Muy buena soldadura ,que es una soldadura sin calor.Especial para arranque de carro y alternador.

  6. Excellent idea start to save some wasted batteries. But the music makes me sick

  7. Thank you for allowing the surplus population an opportunity to take care of its self .

  8. Much helpful advice posted here about risks and precautions. The one thing I am concerned about is that there is no warning about UV risk. It maybe a simple effective tool but it still spews out dangerous loads of eye-destroying UV. You must use a welding helmet !

  9. Most of your current is wasted in heating the carbon rod red-hot. Carbon is a resistor, and the resistance causes it to heat up. Real welders use copper electrodes, to have as little wasted current as possible, copper being an excellent conductor.

    Using a carbon rod for an electrode in this application is like driving with your brakes on. Lots of heat, and wasted fuel.

    Perhaps you used carbon for fear that copper would weld itself to steel or nickel? It won't. Again, there's a reason that real spot welders use copper electrodes. In addition to being much more efficient, you won't burn your fingers after a few seconds of use (or, start a fire by accidentally dropping the red-hot carbon when it burns your finger).

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