Question: how much energy does it take to make an electric car battery?
Answer: That figure will tell you the cost per 100 miles. You also can work from the total kilowatt-hours it takes to recharge the EV's battery. If an EV requires 40 kWh to recharge a fully depleted battery, and the rate is 18 cents per kWh, that's $7.20 for a fill-up.