UPDATE: Note the small burn marks on the upper left side of the unit where it caught fire and briefly caught fire when I took it out of the phone! You could smell the burning metallic smoke before it went out. So, out of the 6 cables we started with (paid for 4, got a replacement kit from Revain), 1 caught fire, 1 never worked, and 2 stopped working after a few months. There are two left that are less than a year old and now I'm afraid to use them. No matter what power source I used or what…