Only on the standard slow charging pile will the charging current reach 16 amps, because the voltage is the same, so it must be 16 amps charging speed, the power is about 3.5 kilowatts.
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Because the car charger is generally used at home, the manufacturer considers the use of safety issues are to limit the charging current at about 10 amPs, so that the home electricity is safer, there is no need to change the main switch.
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Since the general household 220V AC socket is 10A and 16A, for safety reasons, the charging current of slow charge is generally less than 10A, according to the standard calculation of 10A, the maximum charging power of slow charge is about P=UI=220V*10A=2.2KW. Since 16.25KW is much larger than 2.2KW, it can be found that fast charge is much, much faster than slow charge.
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Electric vehicle Fast charge and slow charge Introduction: Fast charge
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Fast charge is an emergency charging method, using DC charging, the DC charging voltage is generally greater than the battery voltage, the need to convert alternating current into direct current through the rectifier device, the power battery pack voltage resistance and protection put forward higher requirements; The charging current is large, ten times or even dozens of times that of conventional charging current.
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Advantages: Half an hour can be filled with 80% of the battery capacity. After more than 80%, in order to protect the safety of the battery, the charging current becomes smaller, and the time to charge to 100% will be longer. Disadvantages: Due to the characteristics of high charging voltage and large current, it causes certain damage to the battery and reduces the service life of the battery at the cost of reducing the number of battery charging and discharging cycles.