What does qc fast charge mode mean?

QC fast charging mode refers to a fast charging technology. Specifically, it uses variable voltage and variable charging current to realize high-speed charging. Compared with the traditional charging mode, QC fast charging mode can shorten the charging time to only a few minutes, which is very meaningful for modern people. Moreover, under this charging method, the temperature borne by the smartphone is relatively low. Because QC fast charging mode can continuously adjust voltage and current through targeted control, it can reduce the problems such as the decline of mobile phone performance and the damage of battery life caused by high temperature.

Common QC fast charging modes are QC0, QC0 and QC4.0, all of which were introduced by Qualcomm and supported and applied by many mobile phone manufacturers. Among them, QC0 is mainly used for the charging of popular bracelets and low-end smart phones, QC0 is used for the fast charging of high-end bracelets and high-end smart phones, and QC4.0 is widely used for the fast charging of high-end mobile phones and other devices because of its innovative features in safety, charging and energy saving.

Although QC fast charging mode has obvious advantages in charging, it also has certain limitations. For example, when the mobile phone screen is turned on and the remaining battery power is less than 20%, the charging speed of QC fast charging mode will slow down. In addition, only mobile phones that support fast charging technology can enjoy fast charging mode. If the mobile phone does not support fast charging technology, even if the fast charging charger is used, it can only be charged at the normal charging speed. Therefore, when choosing the fast charging mode, we must first ensure that the mobile phone supports fast charging, and we also need to choose according to the matching degree between the charger and the mobile phone.