BatteryVoltageDisplay shows Android phone’s real-time battery voltage. The information is always visible in an icon in the status bar and in a notification, even while you use other apps.

Practical uses of monitoring battery voltage:

🔋 Check battery real health
Spot signs of battery degradation. Watch for sudden or irregular voltage drops—these are early signs that the battery is degrading.

🔌 Catch bad chargers or cables
During charging, voltage should rise smoothly (e.g., 3.7 V → 4.2 V). If it stays flat or jumps irregularly, the cable or adapter is likely defective.

💀 Avoid unexpected shutdowns
Monitoring voltage lets you see the exact point where the phone shuts down from low battery. Helping you avoid surprises like the device shutting down at 30% charge.

📈 Save money on unnecessary battery replacement
Monitor battery’s voltage to know its true health and decide a battery replacement only when it is actually needed.

⚠️ Prolong battery lifespan
Batteries experience high stress when charged to their maximum voltage, which often happens before the charge indicator shows 100%. By monitoring voltage, you can unplug your phone at the optimal point to reduce stress and extend battery life.

🔎 Evaluate aftermarket replacement battery capacity
Quickly know a replacement battery’s quaity. A good battery holds stable voltage under load, while a poor-quality battery drops quickly under use and spikes sharply when charging.


The Battery Voltage Display app is a tool for anyone who wants detailed insights into their Android smartphone’s battery health.


Key Features:

- User-Friendly Interface: Designed with simplicity in mind, ensuring easy navigation and quick access to vital battery data.
- Automatic Startup Support: Enables continuous monitoring without requiring manual app relaunches after a reboot.
- Resource Efficiency: The app operates with minimal RAM usage, ensuring it does not interfere with system performance.
- No Hidden Processes: Unlike many background apps, it does not run covert services, preventing unnecessary battery drain.
- Manual Exit Functionality: Allows users to completely exit the app with a single button press, ensuring full control over system resources.
- Ad-Free Experience: The app is entirely free to use without any intrusive advertisements disrupting the user experience.
- Wide Compatibility: Works seamlessly on devices running Android 8 and newer versions.

Created by Eugen Barilyuk EB43 https://eb43.github.io