Wait
Wait so is there only 1 DM on each train?
Yes that is correct. The two 2-car US trains only have 1 x DM car each.
The first train shipped out to the USA was 230002, it was a 2-car consisting of DM-DM.
Then two 'Driving Trailer' (DT) cars were shipped out there. They are basically DM cars without motors or any of the traction equipment (so just the cab really).
Then they took 230002, split it in half, added a DT car to each car, thus you ended up with two battery trains:
Unit number 230002; consisting of DM-DT (the video I linked to in post #168 shows it in this configuration, note the very empty underframe on the DT car)
Unit number 230011; consisting of DM-DT
Very confusing I know!
Haven't seen much of 230011 to be honest, not sure what's happened to it!