1. Battery tester: Sensitive and fast response for accurate display of battery test results, checks battery starting ability and charging status. 2. Features: No leakage, no heat, no sparks, safe operation, uninterrupted performance, full overvoltage line protection. 3. Function: Passes low-frequency signal test without connecting a large load discharge; detects normal charging voltage and starting voltage in vehicles. 4. Easy to use: Direct testing on the car without removing the battery; compact and lightweight for easy portability. 5. Alligator clip: Copper-plated material with wide opening range and strong grip for more accurate measurements. 6. Wide application: Suitable for automobile performance testing in 4S shops, private cars, or repair shops. Specification: Product name: Car Battery Tester Color: Grey Material: ABS Size: About 120*53*18mm / 4.72*2.09*0.71 inches (L*W*H) Display: LED light Light color: Red, yellow, green Voltage range: 4-12V Test method: Positive and negative test clip 6 LED lights: Generator status check: First indicator (red): Fault Second light (green): Good Third light (green): Full Battery status check: First light (yellow): Medium Second light (red): Low Third light (green): OK Package includes: 1 Pc * Car Battery Tester 1 Pc * English Manual