Can the general hotel room be charged by the user's external charging treasure?

Of course. You can charge the mobile power supply when staying in a hotel, no problem. If you stay in a hotel according to normal procedures, I believe that the hotel room has already charged for your room, so you can use all the facilities of the room for free, including water, electricity and bathroom. Therefore, the mobile power supply can be charged in the hotel, and the problem is not big.