How many kilowatt-hours does it take to charge an electric car overnight?
1 Answers
The charger for a 48V-20A battery is 48V/2.4A, with a working power of about 100 watts, consuming 0.12 kWh per hour. By extension, 6 hours would consume 0.72 kWh. Below are the basic principles of pure electric vehicles: 1. Working principle of electric vehicles: Battery — current — power regulator — motor — power transmission system — driving the car. 2. Technical principle: Pure electric vehicles replace the fuel engine with an electric motor, analogous to an automatic transmission. Traditional internal combustion engines can only efficiently generate torque within a narrow range of speeds, which is why traditional internal combustion engine vehicles require large and complex transmission systems. During the operation of a pure electric vehicle, no gear shifting or transmission device is needed, making it easier and more convenient to operate. Compared to hybrid vehicles, pure electric vehicles use a single electric power source, and the electronic control system significantly reduces the mechanical transmission system inside the car, also lowering energy loss and noise caused by friction between mechanical components, saving space and weight inside the car.