1. The reason for the external charger, the charger is also divided into many kinds of charging power, in the case of vehicle support, the greater the power, the faster the general instrument has shown.
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2. The choice of charging port, charging port is divided into fast charging port and slow charging port, fast charging because it is DC charging, the general charging efficiency is relatively fast.
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3. The reason for the car charger, this is the vehicle internal charger, if there is a problem this needs to be checked, 4. The cause of the battery, the balance of the battery and the temperature can affect the speed of charging.