This is the (current) electrical diagram for my Onex. Starting to connect wires now. I have used info from Kitplanes magazine and the Aerovee manual as templates and/or starting points. The basics is a standard primary and secondary system as explained in Kitplanes (don't remember the exact issue). What is not so standard is probably the DC/DC galvanic isolation (from MGL) and the Electronic Circuit Breakers, also from MGL. The backup battery is a 4-6 Ah standard lead battery, enabling at least an hour or two power if the main battery goes down. All my instruments requires electric power. Replace the Primary System with 400/220V AC or whatever, and the ECB with a PLC, and you have a standard industrial setup running in millions of industrial applications. But, I have never tried the MGL Aviogard or the ECB. I wonder if anyone here has any experience with them?