USB-C Charger & Cable Tester

Test USB-C chargers and cables using the charging data your Android phone can measure.

USB-C Charger & Cable Tester helps you compare charging setups, monitor live charging behavior, and save test results so you can see which charger and cable combination performs better on your device.

LIVE CHARGING MONITOR

View useful charging information in real time, including:

• Estimated battery-side charging power in watts
• Charging current in mA
• Battery voltage
• Battery level
• Battery temperature
• Charging source and status when available

Use the live monitor as a practical charging speed and ampere meter to understand how your phone behaves with different chargers, cables, USB ports and power sources.

GUIDED CHARGER & CABLE TEST

Run a controlled charging test instead of judging a charger from a single changing number.

The guided test allows the reading to stabilize, collects multiple samples, and summarizes the charging session with useful measurements such as:

• Average charging power
• Average current
• Peak current
• Temperature change
• Battery level change
• Test duration
• Charging stability

COMPARE USB-C CHARGERS AND CABLES

Want to know whether one USB-C cable charges better than another? Or whether a different charger gives your phone more usable charging power?

Label your charger and cable, save test results, and compare setups under similar conditions.

USB-C Charger & Cable Tester is useful for:

• Comparing USB-C cables
• Comparing wall chargers and power adapters
• Checking charging speed
• Identifying slow charging setups
• Testing a new charger or cable
• Comparing laptop USB-C ports
• Comparing power banks
• Testing different charger and cable combinations
• Monitoring charging behavior over time

CHARGING STABILITY & TEMPERATURE

Charging speed can change because of battery level, heat, phone activity, charging limits and other conditions.

The app tracks sample variation and temperature change during a test to help you understand whether the measured charging behavior stayed relatively stable.

This can make charger and cable comparisons more useful than relying on a single instant reading.

SAVED TEST RESULTS

Keep previous charging tests on your device and label the equipment used.

Save results for different chargers and USB-C cables, reopen them later, and compare charging performance without relying on memory.

FAIRER CHARGER COMPARISONS

Charging measurements can be affected by:

• Starting battery percentage
• Battery temperature
• Phone activity
• Screen usage
• Test duration
• Thermal throttling
• Charging source
• Manufacturer charging controls

For more meaningful comparisons, test different chargers and cables under similar conditions.

BUILT FOR HONEST PHONE-SIDE MEASUREMENTS

Android phones do not expose the same information as dedicated USB power meters or professional USB-PD analyzers.

USB-C Charger & Cable Tester therefore does not claim to verify a charger's rated wall output, a cable's certified wattage, USB Power Delivery profiles, e-marker data or hardware certification when Android cannot provide that information.

Power values displayed by the app are estimated from measurements available from your phone and represent battery-side charging behavior, not guaranteed charger output.

Measurement availability and accuracy vary by device, Android version, battery state, temperature, background activity, charger, cable and manufacturer implementation. Some Android devices may not provide every metric.

Use USB-C Charger & Cable Tester to make practical charger and cable comparisons on the same Android device and find the charging setup that works best for you.