
There are a few issues mentioned in the complaints in the reviews. The first is reverse polarity for RV use. This kit comes with a polarity reversing adapter on the SAE side. Use it when you need it. Easy. The second issue is that someone said the wire is not copper, but the product description says the wire is tinned copper strands, so I'm guessing it looks like aluminum strands, but it's probably copper as stated by the manufacturer . these complaints because they almost made me give up a purchase, but further reading dispelled those concerns for me. The product is well designed and the polarity reversing adapter allows for quick polarity correction without rewiring.

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