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The difference between DC charging piles and AC charging piles, which one is better for the battery?

Updated: Apr 24, 2023

The main difference between DC charging piles and AC charging piles is that AC charging piles need to be charged by on-board chargers during the charging process, while DC charging piles do not need this equipment.


In addition, there is a big difference between the two in terms of charging speed. The charging speed of DC charging piles is much faster than that of AC charging piles. For a pure electric vehicle, it only takes 1-3 hours to charge a DC charging pile from no electricity to a full charge, while it takes about 8 hours to use an AC charging pile.

AFAX DC charging pile is what we often call "fast charging". It is generally installed outside the electric vehicle and connected to the AC power grid. It can provide a DC power supply device for the power battery of off-board electric vehicles. DC charging piles can provide enough charging power to meet the requirements of fast charging.


AC charging pile, that is, "slow charging", is generally installed outside the electric vehicle and connected to the AC power grid. The device that provides AC power for the on-board charger of the electric vehicle is equivalent to playing a role in controlling the power supply. https://www.afaxpower.com/products-evchargingsolution



Charging pile DC AC which is better for the battery


Compared with the DC and AC of the charging pile, the AC charging pile is better for the battery. First of all, the current of the DC charging pile is much larger than that of the AC charging pile, which will lead to the accelerated aging of the battery due to the high temperature generated when using the DC charging pile, which will greatly shorten the service life of the battery.


On the contrary, the charging process of the AC charging pile is relatively gentle, will not accelerate the loss of the battery, and can prolong the service life of the battery.

However, this is not to say that DC and AC are not beneficial at all. Both DC charging piles and AC charging piles have their own advantages and disadvantages. Car owners can choose according to their own conditions. Choose to use a DC charging pile. And if it is for daily charging, it is recommended to use AC charging piles, because this will not only meet the charging needs of users, but also will not cause excessive load on the car transformer.




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