Now many shared charging treasure is not equipped with a shared charging treasure charging interface, because the previous design did not take into account the use of users, so many shared charging treasure are designed into the form of metal contacts, there are several charging and identification of metal contacts on the side of the shared charging treasure, this contact is used with the shared charging cabinet. The average user to buy this kind of shared charging treasure itself is difficult to charge, so it is recommended to pay attention to when borrowing the shared charging treasure now to check which brand of shared charging treasure is supported by charging.