As an important part of our digital life, the data cable is still in doubt after so many years of use:
Is there a relationship between the charging speed of the mobile phone and the length and thickness of the data cable? Today I'll tell you the answer.

1. The longer the data cable, the slower the charging?
Theoretically, this statement is indeed true.
The shorter the length of the data line, the smaller the loss caused by the wire, the faster the charging speed will be; in the same way, once the length of the data cable becomes longer, the greater the resistance formed, and the charging speed will become relatively slow.
Not only is the charging speed a problem, but the length of the data cable will also have a certain impact on the data transmission. That is, if too long a data line is used as a carrier, then the line noise will be easy to misscode, which will affect the efficiency of mobile phone transmission data.
But that being said, in practice, as long as you don't use it too long, these fast and slow gaps are actually negligible.
2. The thinner the data cable, the slower the charging?
Congratulations, you got it right again! If you have to compare, the thicker data line will indeed be more capable of thinner data lines!
The internal wire unit of the data line is AWG, which represents the American Wire Gauge, and the smaller the value behind it, the thicker the diameter of the wire, the greater the amount of electricity it can carry, and the faster the charging speed.
For details, you can refer to the "workload" of a large straw and a small straw.
In addition, the material of a data wire core is mainly divided into tinned copper, aluminum magnesium wire, enameled wire, copper wire, copper foil wire, bare copper, iron core galvanized and iron core and so on.
Picking back our physics knowledge, the metal conductivity ranks silver > copper > aluminum > iron > zinc > tin.
Therefore, the data line using silver-plated copper is basically high-end, followed by tinned copper, bare copper, or aluminum magnesium wire, enameled wire, copper foil wire, and then go to the lower level may be iron core copper plating, iron core galvanizing, ladle steel, ladle iron and so on.
Therefore, when you buy a data cable, you can also take a look at the product introduction page to list the material and data of the core of the data line, which is also a rise in insight.
In addition, many merchants now cover the metal braided mesh and a layer of aluminum foil shielding outside the data line, which can not only improve the efficiency of charging and data transmission, but also enhance the anti-pull performance of the data line.
Of course, there will also be some unscrupulous merchants who will falsely thicken the skin of the data line to show the thickness, and everyone should not be easily fooled when buying.
In addition to the length and thickness of the data cable, in fact, other parts such as interface quality, socket tightening, interface plating, etc. will also affect the charging speed.
In terms of efficiency, of course, the original charging kit is the best.
If you want to choose to use third-party data cables, choose some big brands as much as possible, look at their specific parameter introduction, especially Apple users, and choose those products that have been certified by MFi.
Are you using the original data cable or a third party?