With the popularization of new energy vehicles, many owners of new energy vehicles have encountered many headaches when using their vehicles.
Especially in winter, I heard many complaints from owners of new energy vehicles: Why has the cruising range dropped so much? Why can't you charge it? Dare not turn on the air conditioner in winter. ...
So in winter, as a new energy owner, how can we avoid the above problems? What are the problems that need attention?
(1) Why does the battery life of new energy vehicles decrease in winter?
To understand this problem, we must first know that the lithium batteries used in pure electric vehicles mainly include NCA (Nickel Cobalt Aluminum Lithium Battery), NCM (Nickel Cobalt Manganese Lithium Battery) and LFP (Lithium Iron Phosphate Battery).
No matter what kind of lithium battery it is, the activity of lithium battery will decrease in different degrees at low ambient temperature, which will lead to a shorter cruising range of new energy vehicles.
However, this phenomenon is only a physical scene at low temperature. After the temperature rises, it will return to normal and will not cause serious damage to the battery. Therefore, in winter, we need to pay attention to the maintenance of batteries and fully charge them as much as possible. After the car is fully charged, continue charging for a period of time before pulling out the charging pile.
When the battery shows 50%-70% or indicates a yellow light, it is best to charge it once. In addition, when the car is not used for a long time, it should be charged in time and healthily.
It should be noted that the best ambient temperature for battery charging is 25 degrees Celsius. When charging in winter, it is best to choose indoor charging or sunny charging, which is beneficial to improve battery activity and reduce the loss of cruising range. (2) Do new energy vehicles need hot cars? Need!
I believe many, many old drivers know that in the past, fuel vehicles needed to be warmed up before they could run normally in winter.
However, now many fuel vehicles no longer need to park hot cars after they catch fire.
Many people may say, what is a new energy vehicle? New energy vehicles don't have traditional internal combustion engines, and they don't need them at all.
In fact, new energy vehicles also need hot cars. Take pure electric new energy vehicles as an example, these vehicles are all hot-started at low speed. A hot car of a pure electric vehicle runs at a low speed for a few minutes, and then by driving, the cooling liquid in the power battery pack is slowly warmed up to help the battery work. Simply put, it is to make the temperature of the battery reach the most suitable working temperature. The advantage of this is that it can improve the cruising range and will not affect the life of the motor.
The reason is that the internal electrode of the power battery of the pure electric vehicle will be in a low temperature state, the activity performance of the battery will be greatly reduced, the discharge power will also be weakened, and the acceleration performance will also be attenuated. As for the cruising range, it will also be weakened to varying degrees.
Therefore, in order to solve the influence of this phenomenon on the battery in winter, many manufacturers have designed the battery heating system and finally realized the battery thermal management system.
(3) Use air conditioning in winter, and pay attention to methods.
Many new energy owners know that new energy vehicles consume a lot of electricity after turning on the air conditioner. Therefore, some new energy vehicle owners sometimes choose not to turn on the air conditioner in order to avoid the anxiety of cruising range.
But this trick, in winter, doesn't work! Therefore, in winter, new energy vehicles should pay attention to the use of air conditioners, so that the power consumption of air conditioners will not be too large.
First of all, when you turn on the air conditioner, don't turn it up too much. Warm air only needs to maintain a normal body temperature, so the body will not feel cold. The air volume should not be too large, and the basic 1-2 gear can blow out warmer wind.
Secondly, the air outlet of the air conditioner is set downward, and the hot air is on the rise, which can quickly raise the temperature inside the car. At the same time, starting the internal circulation mode can reduce the consumption of vehicle battery storage capacity.
In addition, the warm air should be turned on intermittently, and the air conditioner should be turned off when the temperature inside the car reaches the set temperature, so that the heat can be maintained and the power loss can be controlled within an acceptable range.
According to the above method, turning on the air conditioner in winter can really reduce power consumption, so don't be stupid enough to carry it with body fat.
Written at the end: As the saying goes, "seven points for maintenance and three points for repair", more attention should be paid to proper car use in winter to reduce unnecessary car use anxiety.