Dual USB Tester for Checking Voltage, Current and Charging of Chargers, Power Banks and USB Cables

Description

Designed to analyse and check USB chargers, power banks, data cables and other electronic charging devices, the TP658 measures output voltage and current, energy, capacity, equivalent circuit resistance (ESR) and the voltage on the D+ and D− data lines of USB cables.

It supports USB-A and USB-C connections and combines accuracy, reliability and operating stability in a compact, portable design. Ideal for production testing, engineering tests, technical diagnostics and advanced hobby use (DIY).

Key features

• Designed to check USB-A and USB-C charging outputs
• Four-line display showing voltage, delivered current, capacity supplied in mAh and charging time all at once
• Long-term monitoring (up to 100 hours) of the charging process, saving 10 sets of measurements
• Supports the QC fast-charging protocols

Technical specifications

• Input current measuring range through the USB-A port: 0.05 ~ 3 A DC, resolution 0.01 A
• Input current measuring range through the USB-C port: 0.05 ~ 5 A DC, resolution 0.01 A
• Measuring range of the capacity delivered to the connected battery: 0 ~ 99,999 mAh, resolution 1 mAh
• Measuring range of the energy supplied to the connected battery: 0 ~ 1000 Wh
• Equivalent circuit resistance measurement: 1 ~ 480 Ω
• USB data line voltage measurement (D+, D-): 0 ~ 3.3 V