Different charging speed
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The most critical difference between fast charging and slow charging of new energy vehicles is that the charging speed is different, and the charging pile interface is not necessarily the same. In most cases, slow charging of new energy vehicles takes 8-10 hours to fully charge the battery, and fast charging takes only one hour to charge the battery to 80% of the power.
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The fast charge is the charging interface of the DC charging pile, which converts the alternating current of the power grid into direct current, which is transmitted to the fast charge port of the electric vehicle, and the electric energy is directly charged into the battery.
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Slow charge is the charging interface of the AC charging pile, which inputs the alternating current of the grid into the slow charge port of the electric vehicle, converts the alternating current into direct current through the charger inside the car, and completes the charging in the input battery. The two interfaces are also structurally different and are not interchangeable.
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Fast charging interface: Slow charging interface: Charging is an important part of the use of electric vehicles, and the charging experience largely determines consumers' purchase decisions and car experience.
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It is known that electric vehicles are powered by on-board power batteries and powered by motors to achieve driving, electric vehicles consume the energy of the battery, the battery needs to be replenished after consumption, and the process of transferring the electric energy in the grid or other energy storage devices to the vehicle's battery is charging.
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The electric energy in the grid or energy storage equipment needs to be converted by the charging equipment to match the technical characteristics of the electric vehicle power battery to complete the charging.
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The conversion process of charging equipment also needs to negotiate with the Battery Management System BMS (Battery Management System) of the power battery on the electric vehicle to complete the charging with the appropriate voltage and current, and in the charging process, the charging current will decrease with the charging process, and the high current can be charged faster at the beginning. Late small current charge slower.