I don't care what other reviews say. This can work well with homemade batteries or anything that doesn't require completely pure nickel. I bought them based on reviews saying they are pure nickel. I do electroplating. I figured I could grab a bunch of these and do the process. After setting everything is correct. We leave her all night. I go out the next morning and find that the solution is not a light green transparent electrolyte. No, it's light blue. Like the waters of the Caribbean. This means it's not clean and didn't work properly. My advice. save your money Don't waste your time with this rubbish.
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