Product details specifications Product name: 12V car battery tester. color: gray Voltage: 12V Product size: 12.4*5.1*2 cm Cord length: 25 cm Product weight: 80G Package size: 14*5.5*3CM Features: 1. Small size and easy to use. Simply connect the clips to the positive and negative terminals of the battery you wish to test and you are ready to go. 2. The LED displays the battery status and the green Full light indicates the battery is fully charged. The yellow light in the middle indicates that the battery power is average. The red Low light indicates that the battery is low and needs to be recharged. 3. Can detect whether the battery charge is normal. The red Fault light indicates abnormal charging and the green Good light indicates normal charging capacity. The car must continue to drive during the test. Note: The data is manual measurement, please allow an error of 1-3cm, due to the difference between the light and the screen , there will be some color difference, the specific received in kind shall prevail.