USB-C Tester: Charger & Cable

USB-C Tester: Charger & Cable is an Android utility for checking USB-C charging performance and device capabilities. View live battery-input voltage, current and wattage, test charger and cable combinations, verify OTG support, and check whether your phone supports DisplayPort Alt Mode. Save cable notes, compare charging results, review session history, and track thermal throttling or USB Power Delivery renegotiation.

The app also includes a live wattage widget and charge alarms for 80% or 85%. Readings reflect data exposed by Android and are measured at the battery—not true wall power—so results account for battery level, conversion loss and charging limits. Compatible with most modern USB-C Android phones running Android 9 or newer, including Samsung Galaxy, Google Pixel, OnePlus, Nothing, Xiaomi and Motorola devices. Measurements remain on your device, with optional anonymous analytics and advertising support.