Won't work.

One needs BATTERY power to close the AUX charging contactor. No amount of
charger power will charge a dead battery through the AUX port, and that is
pretty much universal to Beech, Piper, Cessna.

If the battery is dead it should be taken out and serviced. The manufactures
do this for safety.

Karl

"Ben Hallert" wrote in message
oups.com...
One thought, I've seen chargers that have a 'Jump start' mode and a
trickle mode. Perhaps you would be able to hit the 'Jump Start' button
for a few seconds to create the charge, then let trickle take the rest?