A RV fridge typically uses between 30 and 50 watts of power. The actual amount of power used will depend on the size and model of the fridge, as well as how often the door is opened. A larger fridge with a higher wattage rating may use more power, but it will also be able to store more food and keep it cold for longer periods of time. If you're trying to save energy, you can open the fridge less often or choose a model with a lower wattage rating. Either way, your RV fridge is an essential part of your camping experience!