The Autel MaxiBAS BT506 is a compact, wireless battery and electrical system tester designed for accurate analysis of 6 volt and 12 volt batteries. Using adaptive conductance technology, it evaluates battery health with high precision and performs cranking and charging system tests to identify starting or alternator issues. The BT506 supports Flooded, AGM, AGM Spiral, EFB, and GEL batteries and works with major rating standards including CCA, CA, SAE, EN, IEC, DIN, MCA, and JIS. It connects via Bluetooth to the free MaxiBAS app or to Autel MaxiSYS tablets and the BT608. Reverse polarity protection and in-app data review enhance safety and usability.