- Quick & Accurate Diagnostics : The FBT300 Car Battery Tester delivers professional-grade precision, providing instant checks of your vehicle's battery, voltage, and charging system. Identify weak batteries, alternator issues, or starter problems in seconds—eliminating guesswork. - Universal Compatibility : Compatible with both 12V and 24V batteries including lead-acid, AGM, gel-cell, and deep-cycle types. Ideal for a wide range of vehicles such as cars, trucks, motorcycles, RVs, boats, and lawn equipment. Simple to use—just clamp, test, and go. - User-Friendly Design : Features a bright LCD screen for immediate readability. Designed with reverse-polarity protection and ergonomic clamps, it ensures a smooth testing experience for both DIY enthusiasts and professionals. - Time & Cost Efficiency : Prevent unexpected breakdowns and eliminate costly towing expenses by proactively monitoring your battery's health. Track battery life, cold-cranking amps (CCA), and charging efficiency to replace batteries before they fail. Use Scenarios : 1. Keep your family's vehicles ready for travel by routinely testing car and truck batteries before long trips. 2. Ensure that your motorcycle is always ready for the road by checking the battery and charging system during regular maintenance. 3. Optimize the performance of lawn equipment by testing batteries to avoid interruptions during peak gardening season.