Thanks for the detail. I've never been good at sorting out volts, watts, amps, etc. Regardless, I'm not concerned about it providing too much juice, mainly that it's a proprietary non-spec cable that may use a proprietary pinout. There's a guy on PPCGeeks who successfully & briefly tried a similar cable without ill effects. Waiting on a promised in-depth test to see if it actually charges faster, etc. I'm still a bit chicken to try it as I can't afford to be phoneless right now.