How to solder a bullet connector

by MaxPower | March 15, 2014 | (12) Posted in How To

Here is a video showing how I solder bullet connectors, I find using this method fast and easy, no soldering iron required.  This works well for me and hope it helps out any newbies out there starting out.  The connectors I am soldering are the popular 3.5mm but this can be applied to any connector.  I am using a micro torch, but you can also use a windproof butane lighter that has a blue flame, they are dirt cheap, I picked up mine at the dollarstore.

The steps are:

  1. strip the end of the wire you want to solder
  2. clamp and position the bullet connector and wire
  3. heat the connection joint
  4. apply solder to the connection joint
  5. allow to cool and then heatshrink wrap the connector and wire

Here is the video and gives detailed instructions:

 

 The tools:

  • wire stripper is useful to have but you can use a knife
  • Electrical solder, also know as rosin core solder (edit: if you use rosin core solder with PB (lead) the temperature needed to the soldering is much lower and the solder flows much nicer but it is lead...)
  • Lighter for heat shrink tubing
  • Mini Torch
  • "Helping hand"

I don't actually have a real helping hand, I just made one from some alligator clips, electrical wire and stapled it to a piece of wood as a stand.

 

Micro torch

Windproof butane lighter ($1 at the dollarstore!)

 Rosin Core Solder (Note: My solder is lead free but lead bearing rosin core solder melts at a lower temp and flows better, but it contains lead...)

Bullet connector and wire held in the "helping hand"

Finished connectors covered in heatshrink tubing.

My website: http://eclectic-workshop.weebly.com/

COMMENTS

jimmykobler21 on March 27, 2014
nice! this is super helpful. I'm going to start using this method. i don't want to spend a lot of money on a solderer, this seems like a great alternative

Log In to reply
PaladinDG on March 27, 2014
nice technique...
Log In to reply
Pat on March 27, 2014
That's approximately 1,000 times quicker than the soldering iron. Thanks!
Log In to reply
sailorJohn on March 27, 2014
Pretty cool, but how to use the same technic on xt60 pwr plugs. More videos on howto's ,even if they have been done before are good for people starting out ,plus I always can learn something new. As in the solder you use has some silver content.
Log In to reply
thatjoshguy on March 28, 2014
great tips!
Log In to reply
Ultimate_Red on March 28, 2014
Cool tips, but they're risky because you could get a bubble in the soldering which would cause a weak bond and would mean that the electric current would not flow through as easy and it could break easily.
I would recommend doing this technique but also using David's method of putting plenty of soldering wire into the connector then heating it up an squishing the wire in.
Log In to reply
MaxPower on March 28, 2014
Very good point!
Log In to reply
28th St. Air on April 2, 2014
anytime you can cause other people to say "why didn't i think of that?", you deserve 5 stars. love the brilliance of the simplicity. great presentation too!
Log In to reply
Cyberdactyl on April 5, 2014
Nice and quick.

The only thing I do different, is I try and insure a bit of solder domes out of the relief vent hole. That provides an snag point or anchor if the solder decides to break free from a cold connection.
Log In to reply

You need to log-in to comment on articles.


How to solder a bullet connector