These modes limit background activity and non-essential features. Ultra Battery Saver restricts the phone to basic functions like calls and SMS for extreme longevity. Game Turbo:
APKs like AccuBattery or Gsam Battery Monitor are essential for diagnosing what is draining your power. However, for Xiaomi specifically, tools that manage the "standby" state are crucial. Since MIUI/HyperOS is aggressive, using an APK to whitelist essential apps ensures they stay running without the system killing them, providing a smoother, higher-quality user experience. battery and performance xiaomi apk extra quality
Suspending inactive apps to prevent idle battery drain. for Xiaomi specifically