【Wide 12V/24V Compatibility & Full Battery Type Support】 Our BT500 battery tester works with both 12V and 24V battery systems, covering a 100-2000 CCA test range. It fully supports all common battery types: Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB batteries. Perfect for cars, trucks, motorcycles, ATVs, boats, and other 12V/24V vehicles, meeting the needs of both DIY car owners and professional auto mechanics. 【6-in-1 Full-Function Automotive Diagnostic Tool】 This all-in-one battery analyzer integrates 6 core test functions: Battery Health Test, Cranking System Test, Charging System Test, Load Test, Relay Test, and AMPS Test. It enables one-stop full diagnosis of your vehicle's battery and electrical system, eliminating the need for multiple tools and saving your time and money on auto repairs. 【High-Precision Fast Detection & Clear Health Status Prompt】 Equipped with an advanced smart chip, our battery tester delivers fast and accurate test results in seconds. It can real-time measure and display SOH (State of Health), SOC (State of Charge), CCA value, internal resistance, voltage, ripple value and more. With 3-level intuitive health status prompts (Good/Normal/Poor), you can clearly grasp the battery condition and decide whether to replace it in time. 【Built-in Thermal Printer & Historical Data Review Function】 Unlike ordinary battery testers, our BT500 comes with a high-speed built-in thermal printer, which can print detailed test reports with one click, making it easy to file and share test results. It also supports a historical data review function, allowing you to check and compare previous test records at any time to continuously track battery health changes. 【User-Friendly Design & Durable for Long-Term Use】 Featured with a high-definition color display and clearly marked physical buttons, the operation is extremely simple, even for beginners can easily get started. The ergonomic non-slip handle and rugged housing ensure a comfortable grip and long-lasting durability in home garages, repair workshops or outdoor roadside use.