I am scared of powering my PixHawk from the main power batteries (6s) after a 12s bec failure last year put full voltage into all my electronics. I am also trying to avoid installing the 6s attopilot sensor, for now. My copter will always be flying very nearby and I use screamers on the 6s packs themselves to warn of an unexpected low voltage situation.
My question is this: Can I power the PixHawk through the supplied power module with a 2s lipo (with nothing connected to the output end of the power module) and run the 6s flight packs completely separate? Will this confuse any other components/parameters? I realize I won’t get any voltage/current data from the flight packs, but could I use the failsafe features to guard against low voltage on the 2s pack?