Moved airframe to center of hangar, along with wing cradles and tail parts, ready for final assembly. Modified my ground power connection to plug into either 12V accessory jack. This circuit is limited by the panel breaker to 7.5 Amps, which will run most of the panel, excluding accessories (fuel pump, pitot heat, lights and other heavy loads).

My power supply also has a 'trailer plug' two-pin connector that can directly connect to the main battery, or a dedicated external power connection for the HDX-1100 EFIS, for charging it's backup battery. This is not strictly necessary, but it replicates what I did on my Harmon Rocket, where it is required.