Electric vehicles, like mobile phones, use lithium-ion batteries. At low temperatures, these batteries use more energy, so the battery will drain faster. The electrolyte thickens and the electrochemical processes in the battery are slower. Poor electrolyte conductivity increases the internal resistance of the battery, which produces much less energy output. But good batteries can work even at -50 ° C.
An electric car is highly dependent on the battery, which in turn expends a lot of energy to cope with weather conditions. More load means less power reserve. It is necessary to constantly maintain the temperature balance of the battery. For this, battery coolers and heaters are used.
Let’s take an example of the JAC iEV7S electric car – one of the most affordable electric crossovers in Ukraine with a power reserve of 300 kilometers. Electric motor power – 85 kilowatts. That’s roughly 115 horsepower. The JAC is powered by a Samsung lithium battery, is liquid-cooled and heated, and has a capacity of 40 kWh. The battery is guaranteed for 8 years or 150 thousand km of run. During this time, the degradation should be no more than 80%.
When braking, the recuperation system is activated – this is when the battery recharges the battery from deceleration. It works at a speed reduction of 70-90 km / h. You can enhance recovery and save power in eco mode.
At -10 ° C, active driving style can cover 160-170 kilometers using heated seats and an oven. If you turn on the economy mode, move with minimal acceleration and moderate stove operation, you can stretch the power reserve by another 25-35 kilometers at subzero temperatures.
Recommendations for handling electric vehicles in cold weather
Technical inspection before frost
Particular attention should be paid to the condition of the wheels. Poor tread increases the effort of the braking system, which consumes more energy. If the tire pressure is insufficient, this will make the car heavier and more energy will be wasted when driving.
Choosing the right place to store your car
The electric car should be parked in a heated garage where the temperature is maintained. If the room is warm, the battery does not discharge as quickly. It takes less time to charge your car in the garage, which will help reduce energy costs.
Driving at low speeds
If energy-saving modes are added to the functionality of your electric car, then it is better to use them more often.
Energy recovery function for saving
Friction brakes waste energy. In winter it is recommended to use regenerative braking. The vehicle will slow down without using the brakes. Many owners of electric cars note that regenerative braking allows you to save up to 10-15% of the battery charge.
Comments are closed.