I use a smaller fridge (dorm style) in my trailer. It is powered by 300AH battery banks (total) with a single 235W module, fed through a Xantrex Prowatt 1000 inverter. The fridge draws 80W when operating and the duty cycle is about 1:4. The LRA is much higher but that is instantaneous. Most refrigerators, even newer full size, are close to these specifications. A Kill-a-watt meter will measure exactly what the fridge uses for power.
For clarity: I have no parasitic draw items in my trailer (alarms, circuit boards, etc.). I have 100% LED lighting.