On Wed, Feb 20, 2008 at 1:13 PM, Shawn Rutledge <shawn.t.rutledge at gmail.com> wrote: > That's interesting; I thought the issue was that Motorola chargers > have the RX and TX lines connected together, or something like that, Or maybe they measure the resistance. I googled and found this: http://krhainos.tk/motoplug.jpg