Mini 12V Car Battery Tester Digital Alternator Analyzer Auto Diagnostic Tool. Helps to quickly and accurately test car battery systems, ideal for car battery system repair and maintenance. Features: 1. Car Battery Tester---A good helper to check car battery status, starting and charging, let you know exactly whether the battery needs to be replaced or just charged. Save your time and money. 2. 12V Wide Application --- This universal battery tester is suitable for all 12V charging systems, including common flooded, flat AGM, spiral AGM and gel batteries, for vehicles, forklifts, hybrid cars , SUVs, vans, boats. , RV, motorcycles, caravans. 3.6 LED Digital Display --- 6 intuitive LED lights indicate battery and alternator status, green for good/full, amber for medium, red for low. very simple. It directly indicates the quality of battery and generator without knowing the voltage. 4. More Accurate and Faster Response --- 2 copper clips are more sensitive and precise, get results ASAP. 5. Safe and Simple --- Reverse polarity protection function prevents burnout caused by improper operation between battery (+) terminal and cable (-) terminal. Non-slip design allows you to use it flexibly even with gloves. Specifications: Color: Grey Body Material: ABS Clip Material: Copper Number of LEDs: 6 (2 red, 3 green and 1 yellow) Test method: +/- connection test Measurement range: 4V-12V Product Size: 120 x 48 x 18.5mm Product weight: 58g First light (red): error Second light (green): good Third light (green): fully charged Check battery status: The first light (yellow): medium Second light (red): Low Third light (green): Normal Packing list: 1 * battery tester with two clips