The BT109 is engineered for clarity and depth. Its upgraded TFT color screen brings professional data visualization to every test, allowing you to monitor real-time Waveform Monitoring and detailed health reports. By combining high-speed data processing with universal standard compatibility, this automotive battery tester delivers lab-quality results in a rugged, handheld format.

Comprehensive Diagnostic Intelligence

• Wide-Ranging Compatibility: Supports a massive 100–2000 CCA detection range and a 30–220AH capacity scope. It is fully compatible with every major international standard: CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, and BCI.

• Full Charging & Startup Analysis: Go beyond simple voltage checks with dedicated Startup and Charge Tests. These functions allow you to verify the efficiency of the starter motor and the stability of the alternator’s output under load.

• Real-Time Waveform Monitoring: Visualize voltage fluctuations during cranking and charging. This feature is essential for identifying intermittent electrical noise or parasitic dips that standard testers might miss.

• Data Management & Printing: Features a Replay function to review previous test results and an integrated Data Printing capability for professional record-keeping and customer reporting.

• Intuitive UI Design: The improved interface ensures that even complex diagnostic results are easy to interpret, speeding up the maintenance workflow.

Hardware & Industrial Build Quality

• Enhanced 2.8" TFT Display: The high-resolution (320×240) color screen provides a sharp, high-contrast interface for superior readability in both dimly lit workshops and bright sunlight.

• Rugged & Ergonomic: Encased in a durable ABS shell and weighing just 0.245 kg, the BT109 is balanced for one-handed operation and built to survive the daily vibration of a professional shop.

• Future-Proof Connectivity: Equipped with a Type-C interface for rapid software updates, ensuring your tool stays current with the latest battery technologies and vehicle systems.

• Stable 12–24V Operation: Optimized internal circuitry ensures reliable performance across a broad spectrum of automotive and commercial vehicle platforms.

Technical Specifications

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The Intelligent Choice for Battery Maintenance

The BT109 proves that a high-performance automotive battery tester is the foundation of reliable vehicle service. By merging wide-range CCA detection with professional waveform analysis and data printing, it empowers you to manage vehicle power systems with elite precision.

Take the guesswork out of battery health with the BT109—the fast, accurate, and professional solution for modern electrical diagnostics.