What Is The Difference Between A USB Cable And A Charging Cable?

Appearance difference

The charging cable should be thinner than the data cable. (there are four data lines and only two charging lines)

Generally, our data cable and charging cable use USB interface. Generally, there are four cables. The charging line uses the VCC and GND lines of the power supply, while the data line uses the VCC, GND and two communication lines. The data cable has four wires in the USB interface cable, and the power cable has two wires in the USB cable. Therefore, the data cable can be used as a power cable, but the power cable cannot be used as a data cable.

The wires in the data line are very thin. The resistance of different lines is different. The current is different. The charging is fast when the current is large. Otherwise, it is slow. Generally, the original charger flushes quickly. The non branded ones bought in the repair shop have very thin copper wires. Charging is slow.

Connection mode of mobile phone data cable

Red line: positive pole of power supply (the identification on the wiring is +5v or VCC)

White line: negative voltage data line (marked as data- or USB port -)

Green line: positive voltage data line (marked as data+ or USB port +)

Black wire: grounding (marked as: ground or GND)

Connection mode of mobile phone charging line

Red line: positive pole of power supply (the identification on the wiring is +5v or VCC)

Black wire: grounding (marked as: ground or GND)

（1） The difference in use: the USB data cable is used as a direct data transmission bridge between the mobile phone and the computer, while the charging cable is used for charging. The USB data cable can be used as a charging cable, but the charging cable cannot be connected to the mobile phone and the computer for data transmission.

（2） Difference in composition: generally, our data line and charging line use USB interface, and there are usually four lines. The charging line may only have two lines, VCC and GND, while the data line uses VCC, GND and two communication lines. Because of the difference in composition, there are also differences in function.

（3） The difference in appearance: put the side with contacts on the USB port upward, and carefully look at the number of contacts in the USB port. Only two contacts are the charging cable, and four contacts are the data cable. However, some black heart manufacturers deliberately made four contacts in order to disturb the eyes and ears, but there are only two internal cables (power VCC and GND cables).