Description
Product Overview
The UNI-T UT658B USB Tester helps technicians and electronics users evaluate the output of USB chargers and portable power sources. Connected between a USB power source and a compatible charging cable, it displays electrical measurements during operation and records accumulated charging capacity.
Its compact inline design makes it convenient for testing USB charging accessories, comparing cable performance and investigating charging problems in electronic devices.
Test & Measurement Tools and Solutions
+1
How It Works
Connect the UT658B to a compatible USB power source, then connect the device being charged through the tester. The LCD displays voltage and current readings while the instrument accumulates charging-capacity data.
The stored measurements can help compare charging performance between different chargers, cables and portable power sources. The UT658B is designed for the model’s specified 3–9V input range.
Test & Measurement Tools and Solutions
+1
Technical Specifications
Specification Details
Brand UNI-T
Model UT658B
Product Type USB Tester / USB Power Meter
Input Voltage Range 3–9V DC
Voltage Resolution 0.01V
Voltage Monitoring Accuracy ±(1% + 5 digits)
Current Measurement Range 0–3.5A
Current Resolution 0.01A
Current Monitoring Accuracy ±(1% + 5 digits)
Charging Capacity 0–9999mAh*
Capacity Data Storage 10 sets
Display LCD
Cable Length Approx. 100mm
Operating Temperature −10°C to 40°C
Storage Temperature −10°C to 50°C
Relative Humidity Below 75%
Dimensions 72 × 29 × 12mm
Net Weight Approx. 30g
Certifications CE, UKCA
Specifications are based on UNI-T’s UT658B product documentation. Capacity is listed as 0–9999mAh on UNI-T’s international product page; some other manual and regional documentation lists a higher maximum, so confirm the supplied revision if the maximum capacity counter is important to your application.
Test & Measurement Tools and Solutions
+2
Key Features
– USB voltage measurement
– USB current measurement up to 3.5A
– Charging-capacity tracking in mAh
– 0.01V and 0.01A display resolution
– Storage for up to 10 measurement records
– LCD for viewing charging measurements
– Inline USB-A connection
– Compact, lightweight design
– Suitable for charger and power-bank checks
– Useful for comparing USB cable charging performance
Test & Measurement Tools and Solutions
+1
Applications
The UNI-T UT658B is suitable for:
– USB charger output testing
– Power-bank capacity checks
– USB cable performance comparison
– Smartphone and tablet charging diagnostics
– USB-powered electronics troubleshooting
– Electronics workshop testing
– Charging accessory quality checks
– Basic USB power-source evaluation
– Electronics development and DIY projects
Buyer Guidance
The UT658B supports 3–9V DC and up to 3.5A. It should not be treated as a universal USB-C or modern fast-charging protocol analyzer; verify connector compatibility and the required voltage/current range before purchase. UNI-T lists other UT658-series models with different interfaces and broader voltage ranges.
Test & Measurement Tools and Solutions
+1
UAE Sourcing
Dynavation Star Electrical Fittings Trading LLC supplies electronic test instruments and accessories for technicians, electronics repair professionals, resellers and commercial buyers across the UAE.
Need the UNI-T UT658B USB Tester? Contact Dynavation Star on WhatsApp for a quotation and current availability.
Reviews
There are no reviews yet.