That's normal for new device, There is something called "Learning Usage Patterns" the phone just learns your usage pattern by learning how you use your phone and what apps you use, If you are facing the battery drain issue kindly perform the following steps.
- Charge in one go instead of charging many times as it affects the life span of the battery and battery performance - Perform Battery Optimization Battery optimization helps you to boost the battery performance of your device. To check battery optimization: Settings > Select Device Maintenance/Device Care/Battery and device care > Optimize > Optimize all options like Battery, Storage, and Memory - Turn off Wi-Fi, GPS, Bluetooth, etc. Turn off unused functions like Wi-Fi, GPS, Bluetooth, and location settings when not using them: On the home screen swipe down the notification panel > Turn off Wi-Fi, GPS, Bluetooth, and other connectivity features when not using them. - Check device network fluctuation - Kindly check whether the mobile network fluctuates frequently or if the network signal is low in your area. In both cases, the battery will drain considerably fast. - Reduce display brightness level Kindly set the device display brightness in auto mode (If available). - Adjust screen timeout settings: Settings > Display > Screen timeout > Select minimum screen timeout. - Check and update the App: Kindly check which application or interface is using more battery from device care. And try to update the app or avoid using that app. - Close background running apps Close all the background running apps when not using them.
