The three lines commonly used in the world are Android, Apple and Huawei, and the three lines on the charging treasure provide convenience for the majority of users, and the manufacturing of charging treasure can provide 3 mobile phone charging services at the same time when the power is sufficient, but this situation is relatively small, and the probability of a mobile phone charging is relatively high. In fact, in addition to the three lines, many charging banks usually have one to two USB ports, which can be charged with their own charging cable connection