Detect fake chargers and measure your real charging speed

BatteryLab (Battery Lab Pro – Original Charger Detector) is an Android app designed to measure real charging performance (current in mA and voltage in V), help detect weak or counterfeit chargers/cables by comparing charging behavior to device specs, and provide battery-related insights such as battery health analysis, charge-time estimates, and temperature monitoring.

Based on the official description, it can display charging current (mA) and voltage (V) in real time, estimate remaining time to full charge, predict battery percentage after 30 minutes, and monitor temperature. The Pro version adds items like live chart tracking, more accurate temperature/voltage measurement, and detailed reports.

It measures the actual electric current and voltage entering the phone during charging and compares the observed charging behavior against the device’s original specifications; if a charger/cable is weak or counterfeit, the results typically show reduced charging performance.

Free version (per the official site) includes: measuring current charging speed in milliamps, identifying the type of charger connected, calculating time remaining to full charge, predicting battery percentage after 30 minutes, and basic battery health analysis. Pro version adds: live chart tracking, more accurate temperature and voltage measurement, advanced battery health analysis, detailed charging performance reports, an ad-free experience, and priority support.

According to the official site, the app does not collect personal data and does not require internet permission for basic operation; data stays on the device.

The official site states it supports hundreds of Android devices from many brands, including Samsung, Xiaomi/Redmi, OPPO, Realme, OnePlus, Huawei, vivo, Nokia, and others.

Yes. TOPDON BatteryLab (by ShenZhen Topdon Technology Co.,Ltd / TopDon HK) is described in app listings as a battery testing application that connects to a device for battery testing and related functions, including calculating battery life/voltage, inspecting a car generator, and managing multiple devices.

A common method is using an Android emulator such as BlueStacks: download and install BlueStacks, sign in to Google Play, then install and launch TOPDON BatteryLab from the Play Store (as described in the provided FAQ example).