It would work fine for normal loading, what kind of current? I would just run a spiral of black tape around it to keep the water out, heat shrink is expensive, and DC is easy to contain. Be careful of the connections.
There is a grease for aluminum to copper connection to avoid electrolysis at the joint; and Keep them tight! :D
It would not get that heavy of a load put on it. I was thinking of using it in either short lengths for tying batteries together in a battery bank or for running from a single battery (or battery bank) to a five hundred watt (or one thousand watt) inverter. I do not think there would be anywhere in either application that the aluminum would contact copper but I will keep your advice in mind about the grease and keeping the connections tight. As for the heat shrink tubing I was looking at it a while back on line and I found it in large rolls for pretty cheap.
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1000 watts at 12 volts would be 84 amps. The aluminum wire size for that is double 0 (2-0), and using the grease is smart around batteries to avoid corrosion of the aluminum.
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Gotcha. Thanks a bunch. It has just been an idea really. I tend to like copper wire but since I already have the aluminum I have been thinking about it.
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Free is good! use it, and save the copper money for something else!
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