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How to charge the Xiaomi Smart Doorbell 3S when the battery is low?

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How to charge the Xiaomi Smart Doorbell 3S when the battery is low?

Before the disassembly, please turn off the removal alarm in the Mi Home/Xiaomi Home APP.
For your reference, here are the methods to charge the Xiaomi Smart Doorbell 3S:
1. Insert the removal pin into the pinhole on the top of the doorbell, and press the removal pin firmly;
2. Press the removal pin and push the doorbell upward to remove the doorbell from the base;
3. Use the Type-C power cord to connect to the charging port under the doorbell, and use the adapter with the safety certification of 5V/2A. (A safety-certified wiring board with a charging interface can also be used). It takes about 3-5 hours. The charging time is related to the power adapter used. It is recommended that the output capacity of the power adapter is 2A, and the full charging time is about 3.5 hours. If the output current capacity is lower than 2A, the charging time will be longer;
4. After it is fully charged, just press the correct direction and fasten it to the installation base. There is no need to turn on the doorbell and it will turn on automatically.