We have a 2013 Edge Limited and had a 2010.
The problems, we have encountered, in dead batteries, has always been in not following the instructions. There is always the instinct, to push in, the brake pedal. Don't, while in Neutral, after stopping engine, push in the start button, with foot off the brake, until it says accessory mode.
Of course, before stopping the engine put a/c in recirculate and turn it off, even though you don't have to turn off the ac,then turn off the radio and the headlights.
Don't leave the lights on, as the headlights will come on.
The taillights and turn and marker lights run off the charge wire from the coach.
Every eight hours or so many miles you are supposed to start then engine and run it through the gears, so many minutes per gear. Don't forget the procedure to put it back into accessory mode. Don't leave an interior lights, on by accident.
On the 2010 it used a key and once or twice wife forgot to turn the key all the way back.
If it does die I have a long set of jumper cords plus I carry a battery pack, tire inflator. I have to be careful to not let it stay plugged in the Dc plug in rear too long after being charged. :)
We put a new higher caapacityLifeline maintenance free battery in the car this May, so if we do leave the lights on etc perhaps, it won't matter.
First time out, this year, we drove from Tn, to NC and to Myrtle Beach,S C, at night, for a long portion, and did not lose the charge.