1, flash charge is to improve the charging current, fast charge is to improve the charging voltage, but the essence of both are to improve the charging power, the two charging methods are not different in speed. Flash charge is low voltage fast charge, fast charge is high voltage fast charge.
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2, fast charge and flash charge are the technology to speed up the charging speed of the battery, but the technical principle is slightly different. Fast charging is nothing more than increasing the power of charging. In the case of a certain battery capacity, increasing the power can reduce the charging time, the greater the power, the shorter the charging time. The flash charging temperature is low, and the fast charging temperature is high.
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3, the charging speed is not the same, flash charging is faster. The most important difference is that the safety factor of flash charging is higher than that of fast charging.
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Now fast charging is basically divided into two categories:
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1, low voltage fast charge: represents OPPPO VOOC flash charge.
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2, high voltage fast charge: are Qualcomm's universal free program, on behalf of MOTO turbo fast charge, Vivo dual engine flash charge, the basic Qualcomm chip also supports fast charge.
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Low voltage and high current mode: in the case of a certain voltage, increase the current, you can use the parallel circuit to shunt, under constant voltage, the smaller the pressure shared by each circuit after the parallel shunt, and the same processing in the mobile phone, the smaller the pressure endured by each circuit.
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High voltage constant current mode: The charging process of the general mobile phone is to first reduce the 220V voltage to 5V charger voltage, 5V charger voltage and then to 4.2V battery voltage. During the whole charging process, if the voltage is increased, heat energy is generated, so when charging, the charger will heat up, and the phone will heat up. And the greater the power consumption, the greater the damage to the battery.
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VOOC flash charging technology belongs to low voltage and high current fast charging, and other fast charging belongs to high voltage and low current fast charging. High voltage charging, mobile phone temperature is relatively high, relatively speaking, VOOC flash charging security is very high.
Flash charge and fast charge are both mobile phone charging technologies, but there are some differences. Flash charge is a specific brand of fast charging technology, and fast charge is a general fast charging technology. Flash charge is usually only available for a specific brand of mobile phone, while fast charge is available for multiple brands of mobile phones.
The advantage of flash charging is that it is faster to charge and can full the battery in a short time, but requires the use of a specific charger and data cable. Although the charging speed is slightly slower, it is more commonly applicable to different brands of mobile phones and more convenient to use. So which is better depends on individual needs and the choice of phone brand.