I've been looking around but there's very little information provide on how these tech works some things that I never get how these tech works such as: 1. All of phone battery operate at ~3.7V to 4.4V how does charging it at 9V/12V doesn't kill the battery but instead of charges it faster? 2. Both technology chargers can output 5V/9V/12V and since there is quite a few devices out there that require 12V is it possible to use use the charger as a multi-volt power supply? Any project/mod? eg. QC adapter --> 12V negotiation circuit --> device that need charging 3. It is higher current (Amp) that require thicker cable or is it the volt?