TEST ALL 12V BATTERIES: Don't be caught with a dead battery. The BT50 battery tester checks all 12V lead-acid batteries with essential functions such as battery health, cranking, and charging tests. OPTIMIZED TESTING TECHNOLOGY: The upgraded conductivity testing technology of this battery tester provides fast, accurate battery test results. Get the job done quickly with results in seconds. DATA REVIEW FUNCTION: Use the data review function to access previous test results and keep track of your battery's health over time. MULTI-LANGUAGE OPTIONS - The 12v battery tester supports multiple languages including English, German, French, Italian, Spanish, and Russian. Work in your preferred language to perform battery detection. MULTIPLE STANDARDS COMPATIBLE：TOPDON BT50 car battery tester is designed to support multiple standards including CCA/CA/BCI/MCA/DIN/IEC/EN/SAE/JIS/GB. Whether it's a car, truck, boat or lawn mower, this tester is your all-in-one solution for 12V battery testing across different vehicle types.