When diagnosing vehicle starting failures, checking aging lead-acid batteries, or routine maintenance inspections, standard multimeters only show open-circuit voltage and fail to measure actual cold-cranking performance under heavy engine loads. Guessing battery health leads to unexpected vehicle breakdowns. The UNI-T UT673A Automotive Battery Tester provides a reliable, cost-effective diagnostic solution designed to test 12V lead-acid batteries and evaluate 12V cranking and charging systems accurately.
Comprehensive 12V Testing: Evaluates battery health, internal resistance, life percentage, cold cranking amps (CCA), and starting/charging systems.
Kelvin 4-Terminal Test Method: Eliminates lead-resistance errors to ensure highly repeatable and precise internal resistance measurements.
Broad Standard Compatibility: Supports multiple global battery standards (CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE) covering a wide range of battery capacities.
Non-Invasive In-Vehicle Testing: Safely tests batteries directly inside the vehicle without needing to disconnect terminals or remove the battery pack.
Reverse Polarity Protection: Built-in circuit safety prevents damage if clips are accidentally reversed on the battery posts.
| Feature | Specification |
| Product Type | 12V Automotive Battery & System Analyzer |
| Brand / Model | UNI-T UT673A |
| Battery Types Supported | Ordinary Lead-Acid, AGM Flat, AGM Spiral, GEL, EFB |
| Battery Capacity Range | 3Ah to 250Ah |
| Voltage Measurement Range | 7V to 16V DC |
| Display Screen | Clear Backlit LCD Display |
| Application | Car Batteries, Motorcycles, Light Commercial Vehicles, DIY Mechanics |
Automotive Repair & Maintenance: Essential diagnostic tool for mechanics and auto-electricians checking battery condition during routine service.
DIY Vehicle Troubleshooting: Quickly tests car, motorcycle, and small truck batteries at home to determine when a replacement is needed.
Note to customers: Ensure battery posts are clean and free of heavy corrosion to allow the Kelvin clamps to make optimal electrical contact!
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