Our travel trailer has a norcold refrigerator and the information plate says that on 120v ac it is using 300 watts and 2.5 amps. With 2 batteries on the trailer will a 600 watt power inverter run the refrigerator while driving. My plan is to plug into shore power when stopped just need to keep fridge cold while driving for 6-8 hours during the day in July. I am pulling the trailer with a 2016 f-150 that charges the trailer batteries while driving.