Can I feed another MBP by USB-C cable from a port on the first laptop?
Power packs can deliver 1.5A (at 220V = 330W) over USB-C to the MBP. MBP power requirement is 4.3A (@ 20.2V = 87W). So seems the power pack can handle it.
Ah but port delivers 900 mA (Milliamps) at 5 V = 4.5W. So guessing answer is no. But my amateur electronics may be wrong so confirmation appreciated.