What to do if the Xiaomi Smart Electric Toothbrush T501 can only be used for a few days or about a week (2 minutes each time and twice a day) after being fully charged?

The battery life can be affected by the mode and environment in which the toothbrush is used, and the actual use process will be different.
The main effects of different modes are as follows:
1. Under normal circumstances, when it is in the Standard Mode after being fully charged, it can be used for about 60 days for 2 minutes each time and 2 times a day (the toothbrush can be automatically turned off after brushing);
2. When it is in the Gentle Mode, it can be used for about 150 days.