Help with choosing solder

[Papote611]

I need help choosing the right solder.
Building a Q sport hydro with 6s batteries, to power 1470 motor,
8mm bullet connectors.
My question is what is everyone using to solder the connectors for high current use?
Any help will be appreciated.

[pescador]

A few years ago someone recommended this silver Kester and I?ve been using it ever since, it works great for me.



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[TRUCKPULL]

A few years ago someone recommended this silver Kester and I?ve been using it ever since, it works great for me.



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Brian - that is the same stuff that I use. It was recommended to me by Castle.

Larry

[Mike W]

Source?

[Papote611]

I found this. I think it’s the same

https://www.onlinecomponents.com/en/kester/2470687607-11629152.html?ref=searchads360feed&utm_term=24-7068-7607&gclid=CjwKCAiAqaWdBhAvEiwAGAQltgY3nWjLZuHYWdllsYFPBdKIXgJXrACWxqL98x9budzdzVjkCTd2HhoCgG0QAvD_BwE&gclsrc=aw.ds#

[Papote611]

Thank you Pecador for sharing.

[jkflow]

Any 60/40 solder works as well.

[Papote611]

Any 60/40 solder works as well.

Thank you. Dumb question, since lead is a soft metal, isn’t it to soft for higher current draws using a 6s setup?
I currently use silver solder but it is hard to work with.

[RaceMechaniX]

Guys, you do not need silver solder.

A good rosin core 60/40 electronics solder is what you want. Look for an .031-.062" diameter range which makes it easier to feed in. I would highly recommend a small 1oz bottle of liquid flux to help tin wires.

90% of a good solder joint is prep technique and equipment. You will want a good 80-150W iron preferably with a chisel tip, a connector pinch tool or small vise to hold connectors while soldering and a heat resistant work surface like a silicone mat or phenolic plate.

The most common error I see in high current joints is too much gap between the connector cup and the wire. If the wire has a loose fit in the connector try doubling the wire back on itself or balling up to make the wire fit snug. You do not want to use solder to fill large gaps.

[Papote611]

Thank you Tyler for the info.

[ray schrauwen]

Come and get me coppers...

[jkflow]

I use simple craft wire to fill any gap. I wrap it around the wire and solder it in place. As stated above, keep the gap to a minimum.

https://smile.amazon.com/gp/product/B004CYFHQM

[ray schrauwen]

I just use solid copper because I have it and a lathe too. That same wire that is $7.99 USD is $16 - $30 CDN here. Our dollar is crashing, or has been for years now...

As long as it works use what you can!

[tbonemcniel]

Come and get me coppers...

Oh my gosh I love the copper inserts. I take Castle wire, cut a strand off, wrap it around the wire I?m soldering and twisting it tight, then soldering the whole thing into the bullet. Haven?t lost one yet since I started doing that, but that solid copper core is awesome!

[ray schrauwen]

I learned it all here.