How to distinguish between charging line and data line?

1. Function

As the name suggests, the charging line only has the charging function, and the data line is used to transmit data, while the general mobile phone data line has both charging and data transmission functions. If you just want to charge your mobile phone, both cables can be used; If you want to transmit data, the charging line can't be realized directly without this function.

2. Interface

It's easy to understand that the conventional mobile phone data line is divided into five interfaces: micro, type-C, Mini USB and HDMI. The interface is wrong. No matter whether it's a charging line or a data line, it can't be plugged in at all. Naturally, it can't be mixed.

So, how to distinguish whether a mobile phone line is a charging line or a data line?

Very simple. Generally, the mobile phone line interface is marked. The charging line is in the shape of lightning, and the data line with the functions of charging and transmitting data is another symbol (refer to the figure below). Theoretically, it is easy to distinguish whether the two symbols are charging line or data line.

Therefore, generally speaking, the interface can be universal. It's OK for you to mix it, but there may be some lack of functions. For example, some wires inserted into the computer can only be charged and can't transmit data. Some customized data lines are used by other mobile phones, and some functions cannot be realized.

It's OK to mix data lines, but we need to ensure that the data lines used are qualified products and do not use inferior products. Otherwise, the charging rate may be too slow, the transmission data may be lost, and serious accidents such as fire may be caused, endangering personal safety.