westend wrote:
You will need more capacity. I wouldn't rely on the vehicle charge line to charge batteries to 100 percent SOC. That means you may park with less-than-full battery. Hence, the loss of food.
I would be also concerned with a loss of battery. A single gr29 holding - as we established - about 90-100 AH, will cycle between 50% and 85-90%, possibly dropping below 50% regularly. Not a good idea even if it were a real deep cycle battery - or whatever is normally labeled as deep cycle.
Getting full 100% would be difficult even without that fridge though. This is is the nature of charging, last 20% are slow. Fridge would aggravate the situation.