E's Battery Maintenance

Tag: electric vehicle charging station; battery; Lithium iron phosphate; ternary lithium battery; maintenance; Electric Vehicle; EV; new energy;

There is controversy in the market about how many years the batteries of new energy vehicles can last. Theoretically, the battery life of new energy vehicles can be ten years or even longer.

At present, ternary lithium batteries and lithium iron phosphate batteries are widely used in new energy vehicles on the market. From the perspective of battery life, the service life of new energy vehicles is about 8-15 years.

Lithium iron phosphate battery can be cycled more than 2000 times, and its service life is more than 10 years. Ternary lithium battery has larger and stronger energy storage, and its performance declines little in winter, and its service life is about 8 years. 

However, the actual data is not the case. At present, the life span of new energy vehicles is generally only about five years. After more than five years, the batteries of new energy vehicles begin to gradually decay, the frequency of failures will increase, and the cruising range will not be as good as once, and finally they will have to be scrapped and replaced.

In fact, the specific service life of new energy vehicle batteries depends on the usage habits and environment. The life of the battery is closely related to the number of charging cycles, service time, temperature and other factors. Usually, incorrect car habits and charging methods will affect the battery life of new energy vehicles.

Here are some tips for EV’s battery maintenance:

1. Don't charge quickly. Many new energy vehicles support fast charging mode, so many car owners will choose fast charging to charge a certain amount of electricity in a short time to ensure the normal running of the vehicle. However, the frequent use of fast charging will reduce the reduction capacity of the battery, thus reducing the number of cycles of charging and discharging, and causing some damage to the battery.

2. Do not park at low temperature for a long time. At present, the new energy vehicle batteries on the market are mainly divided into ternary lithium batteries and lithium iron phosphate batteries. Although they have different performances in the face of low temperature, no matter which battery technology, there is a phenomenon of battery attenuation in the face of low temperature environment.

3. Don't expose the car to the sun for a long time. The battery is an important part of the new energy vehicle. When exposed to high temperature for a long time, the internal pressure of the battery will be affected, the battery will lose water, and the activity of the battery will be reduced, which will accelerate the aging of the battery panel and reduce the service life of the new energy vehicle battery.

4. Don't charge with low power frequently. Because there is no memory effect in lithium-ion batteries, electric vehicles, like our smart phones, can be charged whenever they are used. Try not to run out of power before charging, and control the power between 25% and 75%, which can reduce battery attenuation.

5. Don't step on the accelerator. As we all know, the acceleration performance of electric vehicles is excellent, so some car owners like to step on the accelerator. However, high-current discharge will cause the internal resistance of the battery to increase sharply, and frequent driving like this may damage the battery. Therefore, the new energy auto start should be lightly stepped on.

6. Don't drive without electricity. When the power of the new energy vehicle is completely exhausted, sometimes it can wait for tens of minutes, and then it can drive forward for some distance. However, this way of use is very harmful to the battery.

7. Do not charge for a long time. Long-term overcharge may lead to excessive electrical load and reduce battery life. Car owners' habits in actual use have a great influence on the actual service life of batteries of new energy vehicles. In contrast, the service life of batteries can only be used as a reference. Therefore, it is the long-term way to develop good car habits.