Comment by pkulak

Anyone know how this standard actually works? I think right now Android phones tend to short the data lines and Apple uses some system of voltages to communicate that it's high power, which means that the other device usually gets stuck pulling 0.2 amps. How does this new standard tell the device it can supply 100 watts? And does this mean that iOS and Android will be stuck on 0.2 amps? Can you plug a legacy device on at all?