What is the reason why electric vehicles cannot be fully charged or charge slowly at charging stations?

As a representative of green transportation, electric vehicles have been favored by the general public in recent years. However, many car owners encounter insufficient charging or slow charging when using charging piles in different communities to charge their electric vehicles.

This not only affects the driving range of electric vehicles, but also brings a lot of inconvenience to car owners. So, what causes this to happen?

1. Power limitations of charging piles

The power of charging piles currently installed in residential areas is generally low, generally between 3-10 kilowatts. For some electric vehicles equipped with large-capacity batteries, the charging time will be extended if low-power charging piles are used.

In addition, due to the aging of network equipment in some old communities, the actual working power of charging piles may be lower than the nominal power, resulting in slower charging speed.

2. Battery aging

As usage time increases, electric vehicle batteries will gradually age and their battery capacity will gradually decrease. This means the battery will take longer to charge and discharge faster. If the battery is too old, it may not even hold a charge.

3.Charging cable problem

The resistance of the charging cable directly affects the charging speed. If the resistance of the charging cable used is too large, the charging current will be reduced and the charging time will be extended. In addition, if the charging cable is damaged or has poor contact, it will also affect the charging speed.

4. Charging ambient temperature

The charging and discharging process of the battery needs to be carried out within a certain temperature control range. If the temperature is too high or too low, it will affect the battery charging speed and battery system performance. In the cold winter, the battery may charge more slowly due to lower ambient temperatures.

5.Charger problem

A charger is a device that converts electrical energy from the grid into a direct current supply and battery. If a charger has a fault message or does not match the battery, it will also cause the development of your own charging technology to slow down or not be fully charged.

To summarize, there are many possible reasons why an electric vehicle may not be fully charged and charge slowly at a residential charger. In order to solve this problem, car owners can try to replace the charging pile, check the battery and charging cable, adjust the temperature of the charging environment, and replace the charger. At the same time, car owners should also pay attention to the daily maintenance of electric vehicles and charging equipment to extend their service life and improve charging performance.