Uni-T UT658A is a compact USB tester for quick checks of power and charging quality. It accurately measures voltage, current, capacity, energy, equivalent resistance, as well as the voltage on the D+ / D- lines, so you can easily test USB-A chargers, power banks, and cables. With QC 3.0 support, it is also suitable for diagnosing fast charging.
The Uni-T UT658A USB tester is a practical tool for service technicians, engineers, and everyday users who want to quickly verify whether a charger, power bank, or USB cable is actually delivering the correct values. It supports USB Type-A and 2.0 / 3.0 protocols, and clearly displays key parameters on the screen in real time.
Main advantages include:
- Wide voltage measurement range (4–24 V DC) and current (0.05–3 A DC) for various power scenarios
- Capacity and energy measurement to check the real performance of chargers and power banks
- Equivalent circuit resistance calculation for quick diagnostics of problematic cables and connections
- QC 3.0 support for working with fast-charging devices
For longer tests, the UT658A offers data logging of up to 10 sets and a maximum measurement time of almost 100 hours with a 1 s time step. Thanks to its compact dimensions and low weight, it is ideal for quick diagnostics both in the field and on the workbench.
Package contents:
Specifications
- Manufacturer
- Uni-T
- Model
- UT658A
- Type
- USB tester
- Input and output ports
- USB Type-A
- Data and charging protocol
- 2.0 / 3.0
- Voltage range
- 4~24 V DC
- Voltage resolution
- 0.01 V
- Current range
- 0.05~3 A DC
- Current resolution
- 0.01 A
- Capacity
- 0~99999 mAh
- Capacity resolution
- 1 mAh
- Energy
- 0~1000 Wh
- Equivalent circuit resistance measurement
- 1~480 Ω
- USB data cable D+ voltage
- 0~3.3 V
- USB data cable D- voltage
- 0~3.3 V
- Data storage
- 10 sets
- Maximum logging time
- 99 h 59 min 59 s
- Time resolution
- 1 s
- Fast-charging protocol
- QC 3.0
- Color
- White
- Weight
- 50.6 g
- Dimensions
- 93 mm x 45 mm x 13 mm
- Certification
- CE, UKCA
