ANCEL BM200 PRO 12V LED Car Battery Tester Head-Up Display Waterproof SOH SOC Charging Battery Capacity Analysis Tool 1. Real-time display of battery health, temperature, charging status, and voltage 2. Battery starting system and charging system monitoring 3. Data abnormality alarm, timely Reminds you of the battery status. 4. Powered by solar panels, with a Type-C charging interface, extremely low power consumption, one charge can last a week 5。433MHz precise transmission, real-time monitoring of battery status 6。Intelligent vibration sensing, smart screen turn-off and turn-on, automatic switch Low power consumption 7. Patented algorithm, the longer the time, the more accurate it becomes. 8. Suitable for all 12V starting batteries, widely used in cars, trucks, yachts, and motorcycles Main Functions Battery test; start-up test; voltage test; charging test; health assessment; charging display; Type-C charging; solar charging; wireless transmission