Solder an Electrical Connection


Video Credit: Bernzomatic Torchbearer Anthony Carrino

Making an electrical connection with solder is a simple project that most people can do themselves using a Bernzomatic Cordless Soldering Iron and just a few essential, inexpensive materials.


  1. Use the wire cutters to cut the proper amount of wire needed for your project.
  2. Strip the wire ends that you will be scolding.
  3. Heat the ST500 in the soldering iron mode.
  4. Once heated, place the tip of the soldering iron and solder on the wires. Be sure to slowly move your soldering iron and solder over the area to ensure you have good connection.
  5. Once the solder has cooled, place heat shrink over the connection.
  6. Using the heat gun attachment on the ST500, shrink the tubing around the electrical connection.


  • Read our General Safety Precautions before starting your project.
  • Read the instructions that come with your torch before beginning your project.
  • The torch flame should be blue for optimal temperature.
  • Always remove torch from fuel cylinder and store fuel in an upright position after completing your project.

What You'll Need


Maker Detail Torch

Product Info


5.6 oz. Butane Cylinder

Product Info


  • Keep a fire extinguisher or water source nearby in case of an emergency
  • Wire
  • Solder
  • Heat shrink
  • Wire cutters
  • Safety glasses
  • Work gloves