Soldering jumper cables ?

msb · Feb 23, 2011

I should know this but old timers is catching up to me. Jumper cables don't work so good. Took them apart and see why.Oxidation. Got them all cleaned up and the copper on the clamps is nice and shiny clean.Skinned the cables back to fresh meat. Going to solder the cables to the clamps this time. What solder do I use. Got some flux,some 50/50 and some rosin core.Something better to use? tia,bob

RayP(MI) · Feb 23, 2011

50/50 rosin core will work best. Don"t ever use acid core on electrical anything.

Janicholson · Feb 23, 2011

Ray"s answer is great. Heat the assembly evenly with flux flowing onto the heated metal. A copper soldering tip on a propane torch will get it hot enough. 400 watt electric iron Good. Solder gun no way. Jim

Anonymous-0 · Feb 23, 2011

I would tin the clamp and the wire then assemble and solder them together with a propane torch set kinda low.

Anonymous-0 · Feb 23, 2011

put a dose of brake fluid on the connections where the corrossion is occuring ,, worx for me

thurlow · Feb 23, 2011

Personally, I'd rather use 60/40 solid core, but what you've got will work.

Hobo,NC · Feb 23, 2011

You need a connector/lug solider to the jumper cable are crimped then bolt the lug to the clamps.

Anonymous-0 · Feb 23, 2011

Use rosin core. Didn't think the connections on mine were that impressive so soldered mine before having any problems.

MarkB_MI · Feb 24, 2011

While you're at it, take a short piece of 12 or 14 gauge stranded wire and solder it between the two halves of the clamp. That will eliminate any voltage drop across the hinge pin and make it easier to get a good connection.

Soldering jumper cables ?

msb

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RayP(MI)

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Janicholson

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Anonymous-0

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Anonymous-0

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thurlow

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Hobo,NC

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Anonymous-0

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MarkB_MI

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