Re: Copper Battery Terminals

Posted by BillyinStoughton on January 06, 2006 at 10:35:07 from (208.50.85.56):

In Reply to: Copper Battery Terminals posted by Jay (ND) on January 06, 2006 at 08:27:21:

I can"t vouch for the conductivity of lead, but I will stand behind the statement that copper to copper (cable to terminal) makes for a better connection since like metals are being used. I build all my own battery cables for my tractors and have always used copper terminals. I typically use 1 gauge cable and instead of crimping (and deforming the terminal lug), I solder the copper terminal directly onto the cable. This makes for a 100% positive connection. And since the terminal is filled with solder and not just crimped, it is impossible to get moisture into the connection. Add a little bit of battery cable shrink tube to the equation and you will have the last set of cables that tractor will ever need.

I go to the welding supply house for the cable, and my CNH boys for the copper terminals. Rosin core electrical solder works best for the connections and doesn"t require mass amounts of heat. Put the terminal in a vise, insert your cable, and then slowly heat it with a propane torch. Fill the terminal full of solder. As you heat the terminal the copper cable will come up to temperature too. As that happens you will actually see the solder start to creep back up the cable. It"s the best water tight connection that can be made! It"ll cost you about $50 to make a set, but it"s the cats *ss for both 6V and 12V systems.

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