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New energy vehicles LI battery fast charge with slow charging the way what's the difference?

by:AAG     2020-11-07


quick charge and slow filling is a relative concept, general quick charge for the high power dc charging, half an hour can be filled with 80% battery capacity, slow charge refers to the communication charging, charging process must be 6 hours to eight hours. Electric vehicle charging speed and power, the battery charger characteristics and temperature are closely related. Even if the current level of the battery technology, aluminium alloy profile quick charge also need 30 minutes of charging the battery capacity by 80%, more than 80%, to protect the security of the battery, the charging current must be smaller, charge to 100% of the time will be longer. In addition, the temperature is lower in the winter, battery charging current smaller, charging time will be longer. Electric cars quick charge and slow filling: why there are two kinds of charging mode? We know that a car can have two charging interface, because actually charging mode has two kinds: constant voltage and constant current. Usually use constant current and constant pressure, so the charging efficiency is higher. Quick charge is filling fast so due to the charging voltage, electric current caused by the different table, the greater the current charging the faster. When is almost full, switch to constant pressure, this will prevent the battery overcharge, also can protect the battery. Electric cars quick charge and slow filling: why quick charge haven't replace slow charge? Slow to charge the charging current and power is relatively small, the battery life is better, and resources used when charging the cost is low. Anti-static workbench custom quick charge will use large current and power, will produce very big effect to the battery pack, the life also can have influence. Aluminum quick charge also need to form a complete set of equipment, such as converting ac dc, such costs will rise. Electric cars quick charge and slow filling: electric automobile winter maintenance should pay attention to what issues? At present, most of the vehicles by Li battery, at lower temperature, the performance of Li battery will have different degree of decline, show the charging current and discharge current smaller, battery capacity reduced, etc. In cold conditions, and may even appear not filling into electric power. Winter driving will use warm wind, increases the vehicle power consumption, travel distance will reduce the traffic. In winter when using the electric car, charging time longer travel distance, vehicles are normally shorter. In use, should be immediately after the car stops charging, remaining that use battery, charging can make faster; Esd workstation in planning the trip, should fully consider the winter travel distance vehicle. Electric vehicle charging speed and power, the battery charger characteristics and temperature are closely related. The current level of the battery technology, even quick charge takes 30 minutes to charge to battery capacity of 80%, more than 80%, to protect the security of the battery, the charging current must be smaller, charge to 100% of the time will be longer. In addition, the temperature is lower in the winter, battery charging current smaller, charging time will be longer.
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