If the Xiaomi Robot Vacuum S40 Pro returns to charge midway, please refer to the following information:
The device is equipped with a 5200 mAh battery for long endurance.
If the battery is low during mopping, the robot vacuum will return to the charging dock to recharge. Once the battery reaches over 80%, it will resume the unfinished task from where it left off.
This behavior is normal and designed to protect the battery while ensuring uninterrupted cleaning coverage.
Note:
If you manually control the robot vacuum during charging or enable Do Not Disturb mode, the robot vacuum will not resume cleaning automatically afterward.
If the robot vacuum is manually moved, reset, or disconnected from Wi-Fi during charging, it can not resume cleaning automatically.