Doing battery cable upgrade
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CF Veteran

Joined: Jan 2013
Posts: 19,219
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From: west chester, pa
Year: 1999
Engine: 4.0
Hi everyone. I got all materials for doing a battery cable upgrade... I don't have a crumpet so I ll have to solder all the lugs on wires. Now my question is, what's the proper procedure for that?
Should I heat up the lug and fill it up with melted solder then push wire in, or put wire in and heat the lug then apply solder?
What type of solder do I use? Plumber's paste and solder or electrical solder? But they r so thin.
What are your experiences and suggestions that I should do? Many thanks
Should I heat up the lug and fill it up with melted solder then push wire in, or put wire in and heat the lug then apply solder?
What type of solder do I use? Plumber's paste and solder or electrical solder? But they r so thin.
What are your experiences and suggestions that I should do? Many thanks
Junior Member
Joined: May 2008
Posts: 15,016
Likes: 11
From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
Hi everyone. I got all materials for doing a battery cable upgrade... I don't have a crumpet so I ll have to solder all the lugs on wires. Now my question is, what's the proper procedure for that?
Should I heat up the lug and fill it up with melted solder then push wire in, or put wire in and heat the lug then apply solder?
What type of solder do I use? Plumber's paste and solder or electrical solder? But they r so thin.
What are your experiences and suggestions that I should do? Many thanks
Should I heat up the lug and fill it up with melted solder then push wire in, or put wire in and heat the lug then apply solder?
What type of solder do I use? Plumber's paste and solder or electrical solder? But they r so thin.
What are your experiences and suggestions that I should do? Many thanks
Watch this.
Thread Starter
CF Veteran

Joined: Jan 2013
Posts: 19,219
Likes: 45
From: west chester, pa
Year: 1999
Engine: 4.0
Senior Member
Joined: Jul 2012
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From: middleburg fl
Year: 1998
Model: Cherokee
Engine: 4.0
[QUOTE=lowrange2;2326467]What's a crumpet?
https://www.google.com/search?q=what...ome&ie=UTF-8:p
i used plumbers solder and flux worked fine
i put the wire in and filled with solder but heated the end of the wire before installing it
you could always heat the fitting and melt the solder into the fitting than proceed like the video
https://www.google.com/search?q=what...ome&ie=UTF-8:p
i used plumbers solder and flux worked fine
i put the wire in and filled with solder but heated the end of the wire before installing it
you could always heat the fitting and melt the solder into the fitting than proceed like the video
Last edited by kennzz05; Feb 22, 2013 at 07:10 AM.
Junior Member
Joined: May 2008
Posts: 15,016
Likes: 11
From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
[quote=kennzz05;2326516]
Wow, you fail at smart ***.
CF Veteran
Joined: Jul 2011
Posts: 1,386
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From: Pompano Beach
Year: 1998
Model: Cherokee
Engine: 4.0
If you are doing an actual upgrade why not spend $25 for a crimper?
http://www.amazon.com/gp/aw/d/B001QR...dir_mdp_mobile
Probably a parts store near you has a tool loan program. A cold soldered joint will eventually fail and pull out if you don't use enough heat or if you move the joint while it cools. Unplated copper lugs need the oxide removed to make a proper joint as well as using an aggressive flux that is non-corrosive and ideally leaves no residue that absorbs moisture. In the event of a overload, short, high amp draw, etc the soldered joint can melt and pull out while the crimp joint wont.
http://www.amazon.com/gp/aw/d/B001QR...dir_mdp_mobile
Probably a parts store near you has a tool loan program. A cold soldered joint will eventually fail and pull out if you don't use enough heat or if you move the joint while it cools. Unplated copper lugs need the oxide removed to make a proper joint as well as using an aggressive flux that is non-corrosive and ideally leaves no residue that absorbs moisture. In the event of a overload, short, high amp draw, etc the soldered joint can melt and pull out while the crimp joint wont.
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Joined: Jul 2012
Posts: 860
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From: middleburg fl
Year: 1998
Model: Cherokee
Engine: 4.0
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