Charging Tester

Charging Tester is a privacy-first, real-time battery and charging hardware diagnostic tool designed for Android devices. Monitor charging current, voltage, temperature, health, wattage, and local charging history with an executive dark diagnostic interface.



⚡ REAL-TIME CHARGING DIAGNOSTICS

• Live Battery Percentage: Precision percentage reading.

• Charging Current: Real-time amperage displayed in mA or A.

• Voltage Monitor: Live potential voltage reading (V).

• Power Meter: Calculated dynamic charging power in Watts (W = V × A).

• Temperature Tracker: Monitor thermal levels in Celsius (°C) or Fahrenheit (°F).

• Battery Health: Monitor HAL health status (Good, Overheated, Over Voltage, Cold, Failure).

• Power Source Detection: Identifies AC Charger, USB Port, or Wireless Charging.



📊 AUTOMATIC CHARGING SESSIONS \& LOCAL HISTORY

• Automatically logs every charging session when plugged in.

• Records starting level, ending level, percentage gained, max temperature, peak power, and average current.

• Review previous charging sessions anytime in your local Charging History.

• Manage individual logs or clear history with a single tap.



🔋 DETAILED BATTERY SPECIFICATIONS

• Access complete battery hardware specifications: design capacity (mAh), charge counter, cycle count (Android 14+), technology (Li-ion/Li-poly), and low power saver status.



🔒 PRIVACY FIRST GUARANTEE

• Zero Unnecessary Permissions: No location, camera, contacts, or storage permissions required.

• 100% Local Data: Charging history stays strictly on your device inside an encrypted local database.

• No Background Telemetry: No battery usage data is uploaded to external servers.



🎨 DARK ENERGY UI DESIGN

• Crafted with a dark diagnostic interface designed for high legibility, rounded Material 3 cards, and high-contrast diagnostic indicators.



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⚠️ DISCLAIMER \& HARDWARE TRANSPARENCY

Charging Tester reads raw diagnostic metrics provided directly by your device's Android Hardware Abstraction Layer (HAL) and kernel system properties. Features such as charging current (mA), charge counter, design capacity, or cycle count depend on manufacturer and hardware kernel support. If a value is unavailable on your device, the app displays "Not available on this device" instead of fake estimated numbers.