Feature: 1. Main Function: Support battery test under starting and charging status, test and display battery voltage, rated value, measured value, internal resistance value, service life, remaining battery parameter information. 2. Other Function: Support fast and standard test mode selection, viewing battery waveform analysis, picture saving and printing function, and USB printing. 3. Multi Modes Choice: Support multiple modes and standard tests, can quickly evaluate the performance of the vehicle battery, and display the results. 4. Practical: It can covers 8 battery standards CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, and BCI. Supports 9 languages including English, Spanish, French, Portuguese, Italian, German, Polish, Russian, Chinese. 5. Wide Application: This battery detector is suitable for a variety of 12V batteries. It is widely used for ordinary lead acid battery, AGM flat battery, AGM spiral battery, GEL, EFB. Specification: Item Type: Car Battery TesterModel: V311B Main Control Chip: APM32F103VCT6 Appearance Color: blue Interface Type: a pair of reverse black and red clips Shell Material: ABS Display: 2.8 inch TFT color screen, resolution: 240 x 320External Power: 12VWorking Voltage: 9-18V Measurement Standards: CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, BCI Measurement Type: Ordinary battery, AGM flat plate, AGM winding, GEL, EFB Measuring Range: CCA: 100-2000A BCI: 100-2000A CA: 100-2000A MCA: 100-2000A JIS: 26A17-24SH52 DIN: 100-1400A IEC: 100-1400A EN:100-2000A SAE: 100-2000A GB: 10-250Ah Product Parameter Information Description:1. Voltage: The current voltage value of the battery measured 2. Rated value: The nominal value on the battery, such as SAE CCA (cold start current value), GB Ah (capacity value) You need to input the value on the battery label to the tester and select the corresponding test standard; 3. Measured value: The current value measured and evaluated by the detector, such as CCA,Ah It is the difference between the nominal value and the measured value Generally, the measured value of a new battery will be close to the nominal value. The longer the battery is used, the worse the aging, and the lower the measured value will be 4. Internal resistance: The internal discharge resistance value of the battery varies with the brand, process, type, current temperature, and duration of use of the battery The better the performance of the general battery, the lower the internal resistance value 5. Life: The value calculated based on the evaluation of the rated value and the current state of the battery reflects the degree of aging of the battery and the percentage of life remaining 6. Remaining power: The value calculated according to the current state of the battery indicates how much power is left in the battery. A full charge is 100%; Similar to the number of bars displayed on the phone 7. The starting voltage has a downward trend and is lower than 11V, it also shows that the starting voltage is normal. Which state is abnormal The car battery will go from low to high in an instant when it starts. Generally, when the battery is lower than 8.5V, the car battery will not catch fire. 10.5V cars will give an alarm, and some cars will give an alarm at 11V. Most The alarm is about 10V, so 11V is the normal offline value Interpretation of Measurement Standards:CCA: The most commonly used value of cold start current, the specifications are specified by SAE&BCI, which is the most commonly used rating for starting batteries at 0°F (-18°C) BCI: International Battery Council Standard CA: 0 ℃ effective starting current rating MCA: Marine battery standard, the effective starting current rating at 0℃ JIS: Japanese Industrial Standard is displayed as a combination of numbers and letters on the battery, for example: 55D23, 80D26 DIN: Standard of the German Automotive Industry Council IEC: International Electrotechnical Commission standard EN: European Automobile Industry Association Standard SAE: American Society of Engineers standard GB: China National Standard . Package List: 1 x V311B Car Battery Tester1 x Manual