Update to my case as you may have known... the battery was just replaced before my flt. It was sent to the manufacture for diagnostics and they didn't find anything wrong with it and engineering insists the charger was connected properly. I think its being covered up by my company. No further action. But they are happy i came back.
Dear WYOMINGPILOT,
even with a 2 battery a/c the aux battery only couples when there is loss of a/c power. but here a/c power is available so the aux battery probably won't connect and u have power only from one batt
??????
Dear elmokh,
Thanx.. i really didn't want to find out what would and wouldn't have worked if the battery went dead..
but a dual IRS DC Fail.. scary...
