Could wind turbines be used to extend the battery life in an electric car?

You sound like most people that have solutions to our energy problems. You forgot the law of conservation of energy. The extra energy required to push the car forward to make the fan turn would require more energy to push the car because of the wind turbine than the wind turbine could produce with losses in the wind, the generation, and the charging of the battery. I had figured out perpetual motion when I was 5 years old, but someone explained the law of conservation of energy and I haven't be able to figure out perpetual motion since.