How to identify the fast charging data cable, I hope the professionals will answer?

Most fast charging cables are just thicker and stiffer than normal charging cables. In this way, large currents can be transmitted.

The fast charging data cable is the two internal power cables that are thicker than the general data cable, and the output current is larger, and the charging of the mobile phone is faster.

The difference between Huawei fast charging and super fast charging icon 2113:

1. Ultra-fast charging mode: The charging icon shows "double lightning bolt".

2. Fast charging mode: The charging icon shows "big and small lightning".

3. Normal charging mode: the charging icon is "single flash".

The difference between Huawei Quick Charge and Super 5261 Fast Charge lock screen status bar:

1. Fast charging mode: When charging, the 4102 is displayed as fast charging when the screen is locked.

2. Super fast charging mode: When charging, the lock screen shows that it is super fast charging.

The difference between Huawei fast charging and super fast charging data cables:

1. Fast charging mode: There is no amperage mark at both ends of the data cable.

2. Super fast charging mode: The amperage at both ends of the data cable is 5A.

Extended Information: Fast Charging The difference between Super Fast Charging:

The charging current does not come with 1653. The maximum charging current for Super Fast Charging is 5A, and the maximum charging current for Fast Charging is 3 3A.

Super fast charging is to use the mode of low voltage and high current to increase the current, and add MCU monolithic microcomputers to replace the step-down circuit in the power supply and battery circuit of the source charging version of the electrical appliance and the battery circuit respectively. Under the premise of low voltage and high current, the output of the current with the cross-flow of the segmented right is realized by opening the voltage loop.

Super Fast Charging has a higher charging power, with a power conversion rate of 95. The fastest charging speed is more than 4 times faster than the general mobile phone charging technology, and 50 times faster than other fast charging technologies.

Mobile phone fast charging is the effect of the mobile phone charging head and the charging cable.

If the mobile phone wants to achieve fast charging, the data cable and the charging head need to be adapted, and the correct fast charging protocol is also required, and the three are complementary and indispensable. If you use a high-power charging head, but the data cable does not meet the fast charging standard, or the fast charging protocol of the charging head and the data cable does not match, it will not meet the fast charging standard.

Fast charging depends on the charging IC (that is, the mobile phone), the charger and the battery, etc., the above three conditions are hardware, following the short board theory, the maximum power that fast charging can achieve depends on the worst of the three conditions.

The power supported by the charging head determines the lower limit of the charging power, while the charging power supported by the mobile phone determines the upper limit. The data cable is mainly responsible for transmission, and is generally charged with the original mobile phone or the charging cable distributed by the charger. The relationship between the charger, the charging cable and the mobile phone is a bit like the relationship between a dam, a water pipe and a household faucet.

The following is illustrated with iPhone charging:

There are two conditions that need to be met for iPhone fast charging, one is the charging head with the Type-C port, and the other is the Type-C to Lightning data cable. iPhone 8 or newer iPhone models can already use the 18W fast charging of the PD fast charging protocol, if the charging head does not have 18W, even if the CTOL data cable is used, it can only be charged with the maximum power supported by the charging head.

You can judge whether the mobile phone charging head is fast charging by observing the current, and when the mobile phone is charging, measure the charging current, if the actual charging current is one-tenth of the capacity of the rechargeable battery, it is slow charging, that is, standard charging. If the charging current is close to the capacity of the rechargeable battery or greater than the capacity of the rechargeable battery, it is fast charging.

The difference between fast charging and flash charging:

1. Fast charging: The method of increasing the voltage and reducing the current is adopted, and the principle is to increase the voltage during charging, and the charging head generally plays a major role.

Its advantage is that it is compatible, because the current is low, so there are no high requirements for the data line, and the cost will be lower. Of course, the disadvantage is that it will generate more heat, which will cause the phone to heat up, which may affect the battery life.

2. Flash charge: The method of reducing the voltage and increasing the current is to increase the charging current and make the battery fully charged faster. It has the advantage of transferring heat to the charging head when charging, which has better safety.

However, due to the large current, special charging heads and data cables are required, and the cost is higher. In addition, it should be noted that if your mobile phone supports flash charging, then you need to customize the flash charging charger, which will be incompatible with other mobile phone chargers, if it is not an adapted charger, it will cause some damage to the battery, and the charging efficiency will also be reduced.

The data cable is also different for different mobile phone models, and the fast charging data cable can be fully charged quickly, and it will take a long time for the ordinary data cable to be fully charged.

The most intuitive difference is that the maximum current passed through the fast charging data cable is greater than that of ordinary chargers, so the charging speed is faster than that of ordinary chargers.

The appearance of the data cable for fast charging is the same as that for general charging, and the charger for fast charging can generate high voltage, and the charging speed is relatively fast, which ordinary chargers can't do.

The data cable is connected to the charger and the mobile phone, because the data line has resistance, so there will be a voltage drop on the data line, if the resistance is too large, it will lead to a large loss of power on the data line. Affecting the charging speed, the copper wire in some roadside data cables on the market is very thin (the finer the resistance, the greater the resistance), or even pure copper (such as copper-clad aluminum), the resistance value is very large, which may cause you to charge slowly, or even fail to charge.