Mobile phone charger unchanged, data line as the only variable, affecting the charging speed?

The speed of charging of mobile phone charging cable is caused by these factors:
1. USB charging cable
The USB cable is too thin to safely transfer enough power from the charger to the phone.
USB cable manufacturers, which are usually too cheap, use inferior metal or extremely thin metal wires in the USB cable in order to reduce manufacturing costs, and therefore cannot support the cable to charge effectively under high-power conditions.
2. Charging head
Objectively speaking, improving the charging speed does require a high-power charger, mainly by the charging head to determine the voltage and current. However, the higher the power of the charger, it does not mean that the charging speed is faster, because it needs to be matched with a fast-charging cable.
In addition, the length, thickness and resistance of the data cable material will affect the charging of the mobile phone. Therefore, the quality of the data cable also has a great impact on the charging speed of the mobile phone.
When choosing a data cable, do not ignore the product description. When looking at the product description, you can focus on the following points:
1, see whether the data line has a shielding network and shielding layer at the same time, both of which indicate that the quality of this data line is not too bad.
2, look at the internal core material, usually copper core, tinned copper, silver plated copper core are very good.
3, look at the AWG value, usually 20AWG, 22AWG is better.
4, if there is no special needs, you can choose a slightly shorter length of the data cable.
5. Compare the fast charge plans you use. See whether the fast charge protocol and current size supported by the data line can match the fast charge scheme of the mobile phone.

Extended information:
Data cable used for a long time,
Sometimes the charging speed slows down after the data cable is used for too long. This situation is generally related to the aging and damage of metal fittings. At this time, you can try to wipe the metal port of the data cable with alcohol cotton without power, which may solve the problem of slow charging speed.
The term "28Awg" refers to the wire diameter of the data cable. The smaller the number in front, the larger the cross-sectional area, the better the conductivity and carrying capacity. If you feel that the problem of charging speed is on the data cable, you can choose a data cable with a smaller AWG value.

（(Photo from Internet）
It is worth mentioning that the device is charged in data transmission mode, the current will be limited to below 0.5A, this situation generally appears in the computer USB port charging friends, the easiest way to improve the charging speed is to change the charging head charging.