Voltascano

com.example.timenotification
by Zapstore _@zapstore.dev

Voltascano shows battery voltage in the system status bar

Republished from GitHub / F-Droid by the Zapstore main account.

Voltascano 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 Voltascano 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

First release: Sep 10, 2025, 5 total releases.

Most recent release: Oct 18, 2026.

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Releases

  • Oct 18, 2026 1.4
    V1.4 changes: • Added an overlay displaying the voltage on top of any app (useful for full-screen apps such as games). • Added support for changing the overlay text size using the notification icon size button. • The app opens the Android settings window to make it easier for the user to grant permission to display over other apps. • Added a dialog requesting notification permission (Android 13+). • The dialog includes a button to open Android notification settings, making it easier for the user to grant notification permission. • Added interface translations for German, Spanish, Russian, and Brazilian Portuguese.
  • Jun 27, 2026 1.3
    App is renamed. BatteryVoltageDisplay -> Voltascano. Added icon text size change option
  • Oct 18, 2025 v1.2 Release page →
  • Sep 10, 2025 v1.1 Release page →
    V1.1 changes: • Modern Android requires user to enable auto start for an app in System settings. Added a popup window with a reminder to do this action after user checks Auto Start in the app • Duplicating code existed. Refactored to remove code duplication
  • Sep 10, 2025 1.1 Release page →
    V1.1 changes: • Modern Android requires user to enable auto start for an app in System settings. Added a popup window with a reminder to do this action after user checks Auto Start in the app • Duplicating code existed. Refactored to remove code duplication