not sure if its how i hooked everything up or the way i crimped ring terminals on the wire but the 0awg power wire i bought literally melted on the end that's hooked to my alt. for the big 3 upgrade, battery gauge was slowly going down and finally got around 10.5 volts and i smelt burning, low and behold i saw the wire like all burnt and bubbled up so i touched it and it literally just fell off the alternator. the wire inside the ring terminal where i crimped it looked like it had gotten so hot it melted into a solder. Not giving a bad rep to seller at all, this wire is probably exceptional for powering amps and so forth but in my application it simply wasnt good enough for the big 3, at least the wire i had running from alt to battery +. I still and will probably buy more of this wire but not for big 3 purposes.