A. 1. Limit background activity: Go to Settings > Apps > FlagFit 2.0 > Battery and restrict background activity to save battery life. 2. Disable unnecessary features: Turn off features like continuous heart rate monitoring or GPS tracking if not needed. 3. Update the app: Ensure you are using the latest version of the app, as updates may include optimizations for battery usage.

B. 4. Use battery saver mode: Enable battery saver mode on your device to limit overall power consumption.