What is fast charging?

Before talking about the standard of fast charging power bank, we must know what is fast charging and what is fast charging protocol.

The fast charging protocol is a technical agreement that allows the charger, data cable, and mobile phone to recognize each other through chips, determine whether the other party is capable of supporting fast charging, and decide whether to perform fast charging and to what extent.

It can be said that a complete fast charging is able to gradually adjust the charging voltage and current according to the battery's power, thus protecting the battery and avoiding danger.

Fast charging is a technology that uses higher currents or higher voltages for high-power charging, in addition to the current common 5V 2A. The power of fast charging can reach 15w, and even some can reach 18W-40W.

Before the true fast charging and fast charging protocol, there was a 5V2A fast charging standard, which was dubbed "fast charging" by merchants during its early popularization and application. However, in the face of true fast charging and the already widely used environment, it can only be considered a "fake" fast charging.