Professional UNI-T UT673A car battery tester for fast and accurate diagnostics of 12V batteries and testing 12/24V starting and charging systems. It offers four-wire Kelvin measurement, support for 10 battery standards, display of capacity, voltage, internal resistance, and health, and a clear LED traffic-light indicator. Ideal for workshops and on the go thanks to its robust construction and easy operation.
Accurate measurement with the Kelvin method
The four-wire Kelvin measurement minimizes the influence of lead resistance, delivering reliable readings of voltage, internal resistance, and battery condition even in demanding environments.
Intuitive operation and clear display
A backlit LCD with a clear menu and large buttons makes navigation easy. The LED traffic light instantly shows the test result—perfect for quick diagnostics in the shop or in the field.
The UNI-T UT673A is a reliable tester for lead-acid starter batteries with capacities from 3–250 Ah. It enables detailed battery health analysis without removal and also checks the vehicle’s starting and charging systems in the 12/24 V range. Thanks to four-wire Kelvin measurement, it achieves high accuracy and eliminates the effect of lead resistance.
The device supports common technologies (SLI, AGM flat/spiral, GEL, EFB) and up to 10 standards (CCA, EN, SAE, DIN, etc.), so you can easily test batteries of various brands and specifications. Results are shown on a high-contrast display, with status additionally indicated by a LED traffic light for quick decisions.
Why choose the UT673A:
- Accurate diagnostics – capacity, voltage, internal resistance, health, and life.
- Wide compatibility – 3–250 Ah, 10 battery standards.
- Safety and protections – overvoltage and reverse polarity protection.
- Fast workflow – test without removal, intuitive menu, clear display.
Specifications
- Manufacturer
- UNI-T
- Model
- UT673A
- Certifications
- CE, FCC, RoHS
- Test types
- 12V battery test; 12/24V starting system test; 12/24V charging system test
- Charging system voltage range
- 7–30 V DC
- Supported battery types
- SLI (lead-acid), AGM flat, AGM spiral, GEL, EFB
- Battery capacity
- 3–250 Ah
- Supported standards
- CCA: 40–2000; BCI: 40–2000; CA: 40–2000; MCA: 40–2000; JIS: 26A17–245H52; DIN: 40–1400; IEC: 40–1400; EN: 40–2000; SAE: 40–2000; AH: 3–250 Ah
- Poor contact indication
- Supported
- Display of health/life/capacity
- Supported
- Display of internal resistance
- Supported
- Display
- 128 × 64, monochrome
- Protections
- Overvoltage protection, reverse polarity protection
- Weight
- 264 g
- Dimensions
- 76 × 22 × 142 mm
