Can the car refrigerator still operate when the engine is turned off?

After the car refrigerator is shut down, the cigarette lighter can continue to be powered by the battery, and the car refrigerator can continue to be used. But after the car is turned off, if there is no electricity at the cigarette lighter, the car refrigerator cannot be used anymore.
But if you want to continue using the car refrigerator after the cigarette lighter runs out of power, you can also use the car refrigerator to move the power and let the refrigerator continue to cool. It can also be maintained for 6-8 hours, or the car refrigerator can be moved to a place with a mobile power source after turning off the engine, or the car refrigerator can be kept working for cooling.
It is common to use an in car refrigerator on some high-power trucks, and because trucks often need to travel long distances, preparing a refrigerator can have many benefits. However, it should be noted that when the car refrigerator is first installed, the correct handling method after parking and turning off the engine should be considered.