I have a custom made flight box on wheels that is set up for 24 volt with a 10' extension on a twist lock connector so the box really would not be an improvement for me. My custom box also has 2 high volume fuel pumps (glow and gas) room for 3 gal of fuel, on board compressor for retracts, battery chargers, glow panel,pull cutting board for charging, drawers, 2 bay starter garage and small parts bin storage. It really came out nice.. I roll it up to my trailer and lift it up on to two hooks on the door where it connects to an automatic charger to keep the two 12 AH batteries ready to go for the next time. The top also carries my mechanics tool chest when I roll out to the flight line.

Best regards,
Randy