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Buoy – Granular Battery Saver Tuning App for Android (No Root Required)

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Fix Lag
Buoy App Tinh Chỉnh Tiết Kiệm Pin Đa Dạng Cho Androids

Buoy is an open-source Android optimization tool that unlocks granular control over the system's built-in battery saver mechanisms. Operating without root via the WRITE_SECURE_SETTINGS permission, Buoy lets you fine-tune Doze states, sensor polling, background sync policies, and CPU throttling profiles to match your daily workflow.

Why Use Buoy Over Android's Default Battery Saver?

Android's stock Battery Saver is notoriously rigid: enabling it forces display refresh rates down to 60Hz, kills smooth UI animations, throttles processor clock speeds, and often delays time-sensitive notifications from messaging apps.

Buoy eliminates this all-or-nothing trade-off. By directly adjusting underlying Android system flags, you gain individual toggle switches for every power policy: restrict background location tracking while keeping buttery-smooth 120Hz scrolling, or enforce aggressive screen-off sleep states without missing critical incoming calls.

Zero Background Memory Footprint: Buoy operates purely as a graphical front-end for Android's system framework. Once your desired profile is set, the app does not need to stay running in the background.

Comparison of Buoy Battery Profiles

Buoy features 5 preconfigured profiles designed for different usage scenarios:

Profile Power Savings Performance Impact Doze & Push Notifications
Default Stock OEM levels None (Factory settings) Standard Android system defaults
Light Mild (10 - 15%) None; maintains peak gaming FPS Doze disabled; zero notification delay
Moderate Balanced (20 - 30%) Negligible latency Light Doze; efficient background polling
High Substantial (35 - 50%) Slight throttling on non-essential tasks Active Doze whenever screen turns off
Extreme Maximum (50%+) Heavy throttling to preserve runtime Aggressive deep sleep; background freeze

Advanced Customization Highlights

  • Sticky Low Power: Forces battery-saver policies to remain active even when connected to or disconnected from a charger.
  • Doze Control: Accelerates deep sleep transitions immediately upon locking the screen, eliminating overnight battery drain.
  • Sensor & Location Management: Deactivates non-essential orientation/motion sensors and prevents apps from waking GPS radios in the background.
  • Data Saver & Dark Theme: Automates native Android Data Saver flags alongside OS-wide dark UI activation.
  • Configuration Backup (Import/Export): Easily backup profile configurations to file or share them across devices.

Installation & ADB Setup Guide

Step 1: Install the Buoy APK

Download the APK package from the links provided below and install it on your Android handset.

Step 2: Grant the WRITE_SECURE_SETTINGS Permission

On initial launch, Buoy prompts for system privileges to write protected Android properties:

Buoy application waiting for WRITE_SECURE_SETTINGS permission via ADB
Buoy permission prompt screen requesting ADB elevation

Method 1: Directly on Device via Brevent or LADB (Recommended)

Open the command console within Brevent or LADB, paste the command below, and run:

bash
pm grant com.draco.buoy android.permission.WRITE_SECURE_SETTINGS

Method 2: Via PC with ADB Shell

Connect your handset to your computer with USB Debugging enabled, launch a command prompt, and execute:

bash
adb shell pm grant com.draco.buoy android.permission.WRITE_SECURE_SETTINGS

Step 3: Select Your Preferred Profile

Return to the Buoy app after executing the command. All configuration sliders and profiles will now be unlocked:

Buoy profiles selection interface displaying power saver tiers
Configuring Light, Moderate, High, or Extreme power profiles in Buoy
Crucial Note Before Uninstalling: Uninstalling the application will not automatically reset modified settings back to OEM defaults. Always switch to the Default profile inside Buoy first before removing the APK.
Download Buoy Android App (APK)
Free
Developer: Draco (Open Source) File Size: Lightweight (~2 MB) Compatibility: Android 8.0 to Android 14+ (No Root) Archive Password: osteup
Download via MediaFire Download via Google Drive

Frequently Asked Questions (FAQ)

Does Buoy cause lag or frame drops during gaming?

Selecting the Light profile or disabling CPU throttling toggles ensures complete fluid performance during gaming sessions. High and Extreme profiles are intended for emergencies when battery percentage is critically low.

Do I have to re-grant ADB permissions after a reboot?

No. Permissions granted via WRITE_SECURE_SETTINGS persist permanently across reboots until a factory data reset is performed on the device.

Is Buoy safe for long-term battery health?

Completely safe. Buoy only tunes software-level sleep states and sensor polling cycles. Lowering internal device temperatures during standby actively helps preserve physical lithium-ion battery health over time.

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