Does slow charging of new energy vehicles hurt the battery every day?Is it affected by not pulling out the gun after slow charging?

Nowadays, regardless of whether it is a hybrid vehicle or a pure electric vehicle, manufacturers will recommend that car owners give priority to using slow charging as much as possible when conditions permit. This actually shows that slow charging of new energy vehicles every day will not damage the battery, and frequent use of fast If it is charged, it will cause damage to the battery.

At present, the slow charging power of new energy vehicles is generally 3-7kW. After the slow charging AC is connected to the slow charging interface of the vehicle, it needs to be converted into DC by the on-board charger before it can be stored in the power battery pack. Compared with fast charging, the current and voltage of slow charging are more stable, and it is a relatively gentle process. Even slow charging every day will not cause damage to the power battery.

On the other hand, the fast charging power of new energy vehicles is generally between 50-350kW, which is much higher than the slow charging. Since the fast charging is a direct current, it can be directly charged into the battery pack without the conversion of the on-board charger. The direct current will undoubtedly have an impact on the battery.

Although the fast charging technology and batteries of many new energy vehicles are already very advanced, frequent use of fast charging will definitely accelerate the polarization of the battery cells, resulting in lithium deposition in the cells, and the lithium ions inside the battery will decrease accordingly. , eventually resulting in a decrease in battery capacity, and attenuation in battery life and life. It is recommended that you follow the charging habits of slow charging and fast charging.

Is it affected by not pulling out the gun after slow charging?

The impact is not great. At present, when the battery is fully charged or the power reaches the set potential, the new energy vehicles will automatically cut off the power to avoid overcharging. After the power is cut off, the charging pile and the on-board charging system will stop working, so there will be no impact .

However, after the vehicle is fully charged with slow charging, it is recommended to draw the gun as soon as possible, because if the charging cable is always plugged into the car, even if it is not powered on, it cannot guarantee 100% safety.