Why are electric vehicles fully charged after short-term charging in winter?

In winter, the electric car will be fully charged in a short time. Reason:

1, the temperature decreases, and the battery storage capacity decreases.

Generally speaking, the best charging and discharging environment temperature of the battery is 20-30℃. In this temperature range, the battery has the highest charging and discharging efficiency and the best effect.

When the temperature drops, the storage capacity of the battery will drop. When the temperature is lower than 15℃, the battery capacity will decrease more obviously. When the temperature drops by 1 degree, the available capacity will drop by about 0.8%. So the intuitive feeling for us is that the colder the weather, the farther the electric car rides.

2. The riding resistance increases, which affects the cruising range.

When the temperature drops, the air in the tires of electric vehicles will expand with heat and contract with cold, resulting in smaller tire pressure, increased friction between tires and the ground, and more energy will be lost when riding.

The clothes worn in winter are thicker and the area is larger. Especially in order to keep warm, many car owners have installed windshields, which are more affected by wind resistance than in summer. In this case, the faster the speed, the greater the resistance and the more obvious the power loss.

In winter, the electric car will be full after short-term charging;

It is also very simple to solve and needs to be recharged frequently. I always advocate that battery cars should not be charged too frequently. Generally speaking, if there is still a little power, it is a good way to extend the battery life. But winter is different. In winter, the battery charges less and consumes quickly, so it must be recharged frequently, preferably after it is used up.

Extended data:

1, form a good charging habit.

When using an electric car in winter, remember not to leave the battery in a state of insufficient power for a long time. Under normal circumstances, when the power is as low as 20%-30%, it is necessary to replenish the power in time.

The best charging temperature of electric vehicles is 25℃, and they can be parked in underground garages or charged in sheltered, dry and ventilated environments.

2. Develop good riding maintenance habits.

When the electric vehicle accelerates to start or climb a hill, the battery will discharge with large current; Frequent braking while riding will also consume some electricity; The faster the riding speed, the greater the wind resistance and the more power consumption.

Therefore, keeping driving at a constant speed and avoiding frequent braking can reduce the loss of electricity and extend the cruising range to a certain extent.