Originally Posted by svyolo
Why not just a cigarette lighter plug, mounted under the panel instead of on it. Wire it to power avionics only, on the ground.
Car shops use the cars auto plug to keep the ECU programmed when they disconnect the batteries to do work on them. They plug a power source into the cigarette lighter.
You can trickle charge through a cigar lighter. You can't do a jump start that way.
2001 RV-6 N46KB