The KONNWEI KW520 12V Car Battery Tester is an essential diagnostic powerhouse for drivers and mechanics seeking laboratory-grade accuracy in battery analysis. Engineered to evaluate 12V lead-acid batteries—including AGM, GEL, EFB, and flooded types—this advanced analyzer instantly measures critical parameters like voltage, internal resistance, State of Charge (SOC), State of Health (SOH), and Cold Cranking Amps (CCA) with ±2% precision. Its intuitive 3.2-inch color LCD screen displays real-time voltage waveforms and comprehensive test results, enabling rapid identification of aging cells, charging system faults, or starter motor issues. Compatible with cars, motorcycles, trucks, SUVs, RVs, boats, and marine vehicles, the KW520 supports global standards (SAE, DIN, JIS, IEC) and features a rugged 1-meter pure copper cable with reverse-polarity protection for safe, spark-free testing. Store up to 1000 test records, leverage lifetime firmware updates via Windows, and enjoy seamless integration with diagnostic workflows—all in a compact, glovebox-friendly design. Whether pre-purchasing a used vehicle or maintaining fleet batteries, the KW520 delivers professional-grade insights to optimize battery lifespan, avoid roadside emergencies, and ensure peak performance.
Top reasons to choose KONNWEI KW520 1. Support car truck battery charging, detection and repair integration
2. Support 12V 10A &24V5A fast charging.
3. Support 100-2000CCA battery detection
4. Maintenance, improve battery performance and life
5.Logical key operation settings, convenient and quick
6.2.4 inch large LCD screen, the display result is clearer
7. Multilingual operation interface, multilingual manual
8. 100% fireproof material production, safer
9.Support lead-acid regular flooded, AGM flat plate, AGM spiral, or gel batteries , and lithium battery.
10.While supporting charging and repairing, it also supports 3 additional detection functions of the battery.