If the Xiaomi Watch 2 is consuming power quickly, please check whether any functions that significantly impact battery life are enabled. Continuous monitoring of physical activity can drain the battery quickly. These functions include continuous heart rate monitoring, all-day blood oxygen monitoring, all-day blood pressure monitoring, and high-precision sleep monitoring.
To prevent this issue, please consider turning off or reducing the frequency of these features if they are not essential for your daily use.
If the above mentioned still cannot solve your problem, please submit feedback for further assistance.