OK, camping season approaches, and I am pondering whether to maybe consider camping at a place with no electric hookups. We camp with tents but usually look for electricity to pump up our air mattresses and, more importantly, to plug in a little cooler-sized "fridge" we have (actually I'd call it an electric, ice-less cooler). It has an adapter for the car power point/cig lighter, which we use while driving, and a standard power cord for 110V AC.

So, here's the question. If we don't have power at the campsite, can I plug this into my 110V outlet in the FEH and run it all night, and still have the car start in the morning? Once we tried that with the DC adapter and the non-hybrid Escape, and had one start in the morning, but after only a very brief drive (i.e., not enough to recharge the battery, maybe only a half mile or so), it was too dead to start the car. Had to call AAA - bummer!

So the fridge can take up whatever a standard 12V battery has, or close to it, overnight (it doesn't always do so, we were lucky on a few occasions before our one unlucky one - and of course, haven't pushed our luck since!). So, I'm thinking, with the big hybrid battery, we should be good for at least an overnight, and probably substantially longer. Any flaws in my thinking here? Does the 110V outlet get power from the big battery, or the small (12V) one?