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List of contents of this article:

• 1, Why do new energy vehicles use fast-charging electricity?
• 2、 Is it better to use fast or slow charging to charge the car?
• 3, How to fast charge electric vehicles

Why do new energy vehicles use fast-charging electricity?

This is because the battery will withstand higher current and voltage during fast charging, which is easy to cause the battery to overheat, thus accelerating the aging of the battery. In addition, fast charging may also cause uneven chemical reactions inside the battery, thus affecting the performance and life of the battery.

The current of charging is large. Generally, it arrives at 150. Between 400 am. New energy fast charging generates a lot of heat. The current generated also has a great impact on the battery. It's best not to use fast charging when charging. The current of slow charging is small. Generally, there are 16 am and 32 am.The charging time is generally 5 to 6 hours.

The main difference between fast charging and slow charging of new energy vehicles is that the charging speed is different, and the charging pile interface is different. The differences between fast charging and slow charging of new energy vehicles are as follows: Charging time: Generally speaking, slow charging of new energy vehicles takes 8-10 hours to fully charge the battery, and fast charging only takes 1 hour to charge the battery to 80%.

First of all, let's talk about fast charging. As mentioned before, fast charging is to inject current directly into the storage battery, which has a very high demand for storage batteries. After all, its current is much larger. If you always choose fast charging, it will not only cause damage to the battery, but also shorten the battery life.

And during the charging process, the charging current will decrease with the charging process, at the beginningThe period can be charged faster with high current, that is, the centralized high voltage (10kV) is introduced, converted into direct current, and connected to a large battery pack.

Is it better to use fast or slow charging to charge the car?

The choice of fast charging or slow charging mainly depends on what kind of car scenario it is in. On the other hand, it also depends on the battery capacity of your car and how much charging power it supports.

Tram slow charging and fast charging have their own advantages and disadvantages, mainly depending on the user's usage habits. - If you need to charge frequently and don't want to wait for a long time when the battery is low, you should use fast charging. - If you don't need to charge urgently, but don't want to charge frequently, you can consider slow charging.

New energy vehicles are often charged slowly, better than frequent fast charging, because although slow charging takes a long time, the damage to the battery is small. Generally, charging at night is full the next morning. Fast charging is only used in emergency situations, such as running at high speed, running out of battery in less than half of the run, so choose to use fast charging, because slow charging takes time. For a long time.

Compared with fast charging and slow charging of electric vehicles, from the perspective of protecting the battery and extending the service life of the battery, slow charging is better than fast charging, so it is recommended that car owners try to focus on slow charging, supplemented by fast charging.

Compared with fast charging and slow charging of new energy vehicles, slow charging is better. It is recommended to focus on slow charging, and then choose fast charging when replenishing electricity in an emergency. Slow charging, as the name implies, the charging speed is relatively slow; slow charging generally takes six to eight hours to fully charge, and sometimes it may take longer.

The specific reasons are as follows: If you look at it from the perspective of experience, the mobile phone must be fast charging, and it charges faster. But from the perspective of battery maintenance, slow charging is better for battery life.

How to fast charge electric vehicles

Electric vehicles generally have three charging methods, namely: portable charging gun.Electric vehicles only need to be connected to the household 220V16A three-eye socket to charge, but the charging speed is relatively slow. Portable charging guns can be purchased in online shopping malls, but you must choose well-known brands of good quality. Household charging pile.

Slow charging of electric vehicles. If you want to become a fast charger. Need to be general. Charging base. And the car charger. All of them. Modification. Change the charging socket to a nine-hole socket. Without going through the car charger. Charge the power battery directly. Change slow charging to fast charging.

DC fast charging: electric vehicles can be fully charged within 30 minutes, but professional fast charging piles and high-power chargers are required. AC home charging: It usually takes 6 to 8 hours to fully charge the electric vehicle, which is suitable for home use.

Fast charging method: Generally, the battery is charged in a short time with a high charging current of 150~400A.

Generally speaking, fast charging can be used when charging with a public charging pile, and the vehicle can be fully charged within 1-2 hours without delaying the normal operation of the car. It is relatively fast to use public charging piles to charge, but you need to go to a special charging area to charge, which is not very convenient where there is no public charging pile.

, to achieve fast charging of electric vehicles, you need to charge the public charging pile and turn on the fast charging mode of the vehicle. Generally, the charging power of fast charging mode can reach more than 40kW. Use the charging interface of the DC charging pile (5 holes) to convert the AC power supply of the power grid into a DC power supply and transport it to the fast charging port of the electric vehicle.