Answer: The shrinking battery life is currently a common problem of the battery, and it will be restored after the temperature is restored.
In fact, the short run of electric vehicles in winter is not a product quality problem, but physical characteristics. As the temperature drops, the activity of various substances in the lithium battery decreases, and the storage capacity also deteriorates.
Learn these tricks, electric cars can run at least 10 kilometers in winter
Although "low temperature" is the natural enemy of batteries, we can use some methods to alleviate and improve the problem of shrinking battery life in winter. Learn these tricks, there is no problem with lithium battery electric vehicles running 10 kilometers in winter.
First, try to avoid charging outdoors
Usually the best ideal temperature for the battery is between 15 degrees and 35 degrees, and the best room temperature for charging is 25 degrees. Outdoor charging in winter, if the battery capacity is around 0 degrees Celsius, the battery capacity is only 70%, and then if it drops by one degree, the battery capacity will also drop by 1%. Therefore, the charging environment temperature is very important to the battery capacity. On the premise of ensuring safety, it is possible to charge indoors if conditions permit, and it is best to charge during the day when the temperature is highest if there is no condition.
Second, don't wait for the electric car to run out of electricity before charging it.
When riding a bike in cold weather, pay attention to the battery capacity. The battery has only 25% power left, so you must charge it in time. Battery deficits often lead to a decrease in power storage capacity, so it is important to know the charging time. In the long run, you will find that the battery is much more durable than before.
Third, appropriately increase the charging time of electric vehicles
In winter, electric vehicles generally can only charge 70% of the electricity and the lights will jump. At this time, we can carry out floating charging. Taking 48V20Ah as an example, the charging time in summer is about 3-7 hours, and the charging time in winter is about 5-8 hours. This allows small currents to slowly enter the battery, which can also increase the power storage. But do not charge for too long to avoid danger.
Fourth, maintain good riding habits
Do not brake or accelerate suddenly when riding an electric bike, because the power consumed by a sudden brake, a sudden acceleration or a restart is several times that of a normal driving process, which makes the power consumption excessive and the battery more likely to be damaged. Therefore, pay attention to speed when riding and try to keep driving at a constant speed. When going uphill or starting, start lightly, and accelerate or brake slowly to avoid excessive current consumption.
Fifth, control the tire pressure
Affected by the weather, the tire pressure in winter is generally lower than that in summer, so ensure proper tire pressure. If the air pressure is insufficient, the resistance of the tires to the road surface when driving on the road is large, which consumes a lot of power. The tire has more air, the smaller the area of the tire that touches the ground, the smaller the resistance, and the longer the natural cruising range. Of course, don't hit the front tire too much.
Sixth, don’t drive beyond the load
The more overloaded, the more power consumption, and the shorter the natural cruising range. Because the battery itself is not active in winter, overloading will naturally make the snow worse, and because the road surface is slippery in winter, the risk of overloading is greater and the safety is lower.
Seventh, do not mix chargers
When charging, use the matching special charger, and do not mix other chargers. Mismatched chargers are more harmful to the battery, and the temperature is low in
