Versatile compatibility This battery tester works with all types of 6V and 12V batteries (100 2000 CCA), including standard, AGM, and gel batteries. It can test automotive, motorcycle, boat, and lawn mower batteries without removing them from the vehicle. Comprehensive analysis Get a complete health assessment of your battery with millisecond level test reports showing voltage, internal resistance, and other critical parameters. Receive professional recommendations based on actual battery condition for informed maintenance decisions. Quick and accurate results Powered by advanced intelligent chip technology, this tester delivers precise readings with over 99.99% accuracy. Save time and money by quickly identifying battery issues before they leave you stranded. User friendly design Featuring a simple interface that allows for in car, out of car, and low battery testing with no technical knowledge required. The compact size (14 x 8 x 2 cm) makes it easy to store in your glove compartment or toolbox. Typical uses Before a road trip: test your car battery on the spot to confirm it can start reliably, without removing the battery. Marine and powersport: check boat or motorcycle batteries to ensure starting power and electrical systems are healthy before use. Seasonal maintenance: verify 6V or 12V batteries for lawn mowers and other small engines to prevent startup issues.