How to charge the Xiaomi Smart Electric Toothbrush T501?

The Xiaomi Smart Electric Toothbrush T501 is equipped with inductive wireless charging technology. Just put the toothbrush into the charging dock (The groove of the charging dock is elliptical. Please align the direction when it is put in.) and it can be charged when an adapter and the charging dock are connected.
For your reference, here are some precautions for charging:
1. The Xiaomi Smart Electric Toothbrush T501 is equipped with a 2550mAh lithium battery. The charging dock features a USB charging port. As long as the adapter matches the local voltage, it can be used all over the world;
2. Please use a 5V⎓1A charger when charging (The operating voltage is 3.6V⎓, and the operating power is 2.5W);
3. It takes about 6.5 hours to fully charge the toothbrush;
4. The toothbrush has a charging disabled feature. If you plug in the charging dock for charging in the startup state, the toothbrush will be forcibly turned off and switched to the charging state. It cannot be turned on when it is charging;
5. The battery type and model is a rechargeable lithium battery 18650. The charging temperature range is 0 to 45℃ and the operating temperature range is -20 to 60℃.