Autel MaxiBAS BT508 Adaptive Conductance Battery Tester is a professional battery and electrical system diagnostic tool designed to deliver fast, precise, and reliable battery health analysis for modern vehicles. Using advanced Adaptive Conductance technology, the BT508 accurately evaluates cold-cranking performance, reserve capacity, and overall battery condition, helping technicians make confident service decisions. Compact and lightweight, this tester supports both in-vehicle and out-of-vehicle testing and pairs seamlessly with a free iOS and Android mobile app for wireless diagnostics, report management, and battery registration. With broad compatibility across battery types and global rating standards, the BT508 is ideal for workshops, technicians, and fleet maintenance operations seeking efficient and professional battery diagnostics.

• Advanced Adaptive Conductance technology for precise battery health and performance analysis
• Supports in-vehicle and out-of-vehicle testing for maximum flexibility
• Tests 6V and 12V batteries with a wide 100–2000 CCA range
• Performs 12V cranking and charging system diagnostics
• Compatible with Flooded, AGM, AGM Spiral, EFB and GEL batteries
• Supports major global standards: CCA, CA, SAE, EN, IEC, DIN, JIS and MCA
• Includes wireless Bluetooth VCI for battery and component registration
• Works with free iOS and Android mobile app for wireless testing and reports
• One-touch battery registration for quick replacement procedures
• Built-in guided instructions for correct battery positioning and testing
• Ability to read and clear diagnostic codes across available systems
• Reverse polarity protection clamps for safe operation
• Automatic report saving with option to print or email results
• Software update support for future battery and vehicle technologies