- 12V car battery tester analyzes key battery conditions including voltage, cold cranking amps (CCA), internal resistance, and overall capacity to determine battery health. - 12V capability with high quality and reliability, using advanced conductance testing technology to quickly measure battery health and assess the system condition. - Large LCD color screen provides clear visibility and brightness, making readings easier to read even at night. - Test results can be stored as a QR code; continuous testing without heating; eight languages supported: English, Russian, Simplified Chinese, Portuguese, Thai, Spanish, French Use scenarios - Personal use: perform a quick 12V battery health check before long trips or after starting issues, to decide whether a battery replacement or charging is needed. - Professional service: diagnose battery and electrical system in a repair shop, generate QR code records for customer files, and monitor battery status during maintenance. - Fleet or multi-vehicle use: conduct rapid, non-heating battery checks across multiple vehicles, helping to manage fleet readiness and reduce downtime.