The Uni-T UT658LOAD is a USB tester designed for testing chargers, portable batteries, USB Type-A cables, and other power supply devices. The device measures voltage, current, energy, capacity, the equivalent circuit resistance, as well as the voltages of the D+ and D- lines, providing accurate evaluation of the operational parameters of the equipment being tested.

Wide range of measurements and built-in load: The UT658LOAD model supports USB Type-A ports and protocols 2.0 and 3.0, measuring voltage in the 4–24 V DC range and current from 0.05 to 3 A DC. The device monitors capacity up to 99,999 mAh, energy up to 1,000 Wh, equivalent circuit resistance from 1 to 480 Ω, and data line voltages D+ and D- in the 0–3.3 V range. The built-in loads of 0.5 A, 1 A, 2 A, and 3 A with a maximum power of 60 W facilitate testing power supplies and chargers under load.

Clear display and convenient data recording: The UT658LOAD displays key parameters simultaneously on a screen, making it easier to evaluate results. It supports 10 data memory sets, a maximum recording time of 99 hours 59 minutes 59 seconds, and QC 3.0 fast charging protocol. With dimensions of 122 × 53 × 27 mm and weight of 114.4 g, the model remains convenient for everyday use.

• Manufacturer: Uni-T
• Model: UT658LOAD
• Type: USB Tester
• Input and output ports: USB Type-A
• Data and charging protocol: 2.0 / 3.0
• Voltage range: 4–24V DC
• Voltage resolution: 0.01V
• Current range: 0.05–3A DC
• Current resolution: 0.01A
• Capacity: 0–99999mAh
Capacity resolution: 1mAh
• Energy: 0–1000Wh
• Equivalent circuit resistance measurement: 1–480Ω
• USB D+ data line voltage: 0–3.3V
• USB D- data line voltage: 0–3.3V
• Data storage: 10 sets
• Electrical load: 0.5A / 1A / 2A / 3A
• Maximum power: 60W
• Maximum recording time: 99 hours 59 minutes 59 seconds
• Time resolution: 1 second
• Fast charging protocol: QC 3.0
• Weight: 114.4g
• Dimensions: 122mm x 53mm x 27mm
• Certifications: CE, UKCA