But the power deck has 8x1.5V reduced to 9V output. NanoPi Neo does need reduction to 5V, so 4xAA batteries should suffice.
Hmmm, the 1.39$ 5V battery box I found has 8xAA as well, I ordered it to give it a try. Should easily connect to the 5V and GND pins of Debug Serial port.
Hermann.
