Why is my watch running out of battery power fast?

Amazfit T-Rex Pro battery can last 18 days with typical usage.
1. 24-hour wear/sleep monitoring/regular heart rate (10min/ time)
2. Lift your wrist and light up the screen 30 times per day
3. 150 messages per day
4. Blood oxygen test twice a day
5. 90 minutes of outdoor exercise every week
The most power-consuming functions of the Amazfit T-Rex Pro watches include motor vibration and the light of the screen. If you often run for exercise, receive pushed messages frequently, or set a long screen-on duration, then it's normal that your watch runs out of battery power fast. If you don't use these functions often, fully charge your watch, turn on Do Not Disturb mode, set the brightness of the watch to the lowest level, turn off the AOD mode, set your watch to the default watch face, and then observe the power consumption after placing it still for 24 hours. If the power consumption is over 5% please submit your feedback via Zepp app and email us to customer support to help us analyze and locate the issue.