I believe the connector is a molex picoblade connector, but I'm not too sure about the wire size. If I had to guess it's 3 30AWG conductors with red being the positive connection, but I don't want to take a blind guess as to which negative here is battery and which is board. I know in my PnP set the wires from the female end are spliced into 2 positive (red) wires and 2 negative (blue and black) wires of much larger size, but I don't want to cut into the shrinkwrap covering the wire splices to be able to tell which wire at the connector is actually which.