1. Charging line voltage: the maximum voltage of the A2C line is generally 20V, the maximum voltage of the C2C line equipped with the mobile phone is generally 20V, and the maximum voltage of the C2C line supporting the PD3.1 protocol (240W) is 48V

2. Charging line current:

(1) A2C line is generally 2-3A. The charging line of each mobile phone will enhance its own charging ability, so that it breaks through 3A, the specific value is subject to publicity, but it is usually unable to shake the charging agreement of other homes.

(2) C2C line is generally 3A or 5A. The charging cable of each mobile phone will enhance its own charging ability, making it break through 5A, the specific value is subject to publicity, but the maximum current supported by other private fast charging protocols or handshake PD protocols is 5A, and the maximum current on the E-marker electronic label is also 5A

3. Charging line power: Charging line power = maximum voltage x maximum current

4.E-marker chip: The power supply capacity is above 3A or the data transmission capacity is at the C2C of USB3.0 and above, which will record the manufacturer, length, power supply capacity, data transmission capacity and other information.

2. Data transmission capability

It is independent of power supply capacity. It is described by USB 2.0, USB 3.0, etc.

Three, thickness

In the case of the regular charging line, the data transmission capacity is the same, the larger the current, the thicker the charging line.