Product Features: The main purpose of battery inspection is to analyze the health status of the battery to calculate the actual capacity and aging of the battery during cold start, thereby providing reliable analysis and testing for battery testing and maintenance. By testing the actual starting current required and the starting voltage of the starting motor, you can determine whether the starting motor is working well. There are many reasons for the abnormality of the starter motor: failure of the lubrication system will cause an increase in starting torque or friction of the starter motor rotor, which will cause more friction in the starter itself. The load test is to check and analyze the charging system (including generator, rectifier, rectifier diode, etc.) to determine whether the output voltage of the generator is normal, the rectifier diode is working properly and the load current is normal. Assuming that one of the above components is in an abnormal state, it will cause the battery to be overcharged or not fully charged. Specification: Color: Black Material: ABS Instructions: Shake the clamps back and forth to ensure they are securely connected. The tester requires the two clips to be extremely firmly connected to the battery, otherwise the test cannot continue. Red becomes positive and black becomes negative, then the tester screen will display the startup interface. When the measured battery voltage is lower than 6.0V, the normal test cannot be performed. Press OK to continue. Cold start amplifier measurement range: CCA (United States): 20-3000; IEC (International): 20-2500; ZH (Europe): 20-3000; DIN (Germany): 20-2500; JIS (Japan): 26A17-N200Z; other types. Voltage Measurement Range: 6V - 30V DC Package List: 1 x Battery Tester 1 x Printing Paper 1 x Clip 1 x User Manual