Introduction to the Usage of Charging Piles for New Energy Vehicles

I believe that many new energy owners only know how to charge their cars, but they don't know how to charge electric vehicles. This paper will popularize the charging principle of charging piles, so that car owners can understand the charging knowledge more systematically.

The charging methods of new energy vehicles are divided into pre-charging, fast charging and supplementary charging. Pre-charging refers to charging with a small current before charging to meet certain charging conditions.

Fast charging means fast charging, that is, charging with large DC current to quickly restore the battery power. Charging refers to charging the battery to 100% by other charging methods after fast charging, when the battery is not fully charged.

The battery charging methods of new energy vehicles mainly include constant current charging, constant voltage charging and pulse fast charging. Car owners can choose the charging method according to their own usage, or they can mix and charge.

Constant current charging refers to a charging method that keeps the charging current constant. Stable current is beneficial to protect the battery life, but the corresponding charging time is also long. This charging method, also known as conventional charging, is mostly used for home charging.

Constant voltage charging refers to a charging method that keeps the charging voltage constant. This method requires a stable voltage to ensure the charging process. Constant voltage charging time is short, but the battery is not easy to charge and needs to be replenished.

Pulse charging is what we often call fast charging. The relatively large current DC charging method can fully charge the battery in a short time and improve the charging efficiency. The disadvantage is that if fast charging is used frequently, the battery life may be shortened.