Electric vehicles are fast, small and convenient to park. They are the most commonly used means of transportation for many families. But every winter, many people will find that the electric vehicle battery can't be charged or is not charged enough, resulting in problems such as electric vehicles can't run long distances and slow speed in winter. Is it necessary to change the battery? The small editor of this article will tell you the reasons and precautions for the heavy dissatisfaction of electric vehicle batteries in winter.
The battery is sensitive to temperature. It is afraid of heat and cold. It will explode when it is hot and catch a cold when it is cold. This is because the lead-acid battery has an optimal operating temperature - 25 ℃. Higher than 25 ℃, it is easy to bulge and spontaneous combustion; Below 25 ℃, various activities in the lead-acid battery decrease, the resistance increases, the battery capacity decreases, the charging effect decreases, and the power storage capacity becomes worse.
One radish, one pit, the charger must match the battery model
The electric vehicle shall be charged with a supporting special charger. If the chargers of different specifications are used indiscriminately, the rated voltage and current of the charger will not match the battery, which is easy to cause battery charging drum, battery overcharge or overcharge.
The battery should be charged frequently when the ambient temperature drops
When the remaining power of the battery is between 30% - 50%, it is best to charge, which can not only avoid the early capacity loss of the battery, but also avoid over discharge; If you often take people and climb slopes, it is recommended that the remaining power be charged at 50%; If you go out or place it for a long time, the battery will produce self discharge phenomenon, resulting in 'power running', and the battery power loss will seriously affect the service life of the battery. It is recommended to conduct deep cycle charge and discharge once a month. Even if it is not used at home, it should be powered on regularly
Try to charge indoors
The outdoor temperature is too low in winter. When charging the electric vehicle battery, it should be carried out indoors as far as possible, because the best ambient temperature for battery charging is 25 ℃, and indoor charging is conducive to enhancing the power storage capacity of the battery. In addition, the outdoor air temperature is cold in winter, and the battery is easy to freeze and frost. It is best to place the battery for a while before charging, and charge it after the battery surface temperature rises to close to room temperature and is fully dry.
Try not to use or use less fast charging stations
The long-term use of the roadside fast charging station will also charge the battery drum, because the working principle of the fast charging station is to charge with high current in a short time, which will lead to serious gas evolution and water loss of the battery and bulging of the battery. Many cities have a large number of fast charging stations. On the one hand, it brings convenience to electric vehicle users. On the other hand, high current charging of fast charging stations leads to serious gas and water loss of batteries. Long term use will lead to adverse consequences such as battery charging drum.
Do not overload or overspeed
In case of overload and overspeed, the battery is discharged with high current, which will cause damage to the battery plate and affect the service life of the battery.
Select configuration guard
It may be easy to forget that sometimes it is not intentional, so you can choose to configure an anti-theft device for your car, which can not only guard against theft, but also has many functions, which can be controlled one by one on your mobile phone.