Top reasons to Choose Car Battery Tester1.[Multi-Functions]KW208 Battery Tester includes Battery test, Cranking test, Charging test functions. Mainly targeted to analyze the battery healthy status. It directly detects whether the battery is good or bad, and present suggested solutions.2.[Convenience] : No internal batteries required and gets the power directly from the 12V battery. And testing can be done by connecting electrodes.3.[Professional]Test standards include most battery standards in the world, CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE4.[Efficiency & Safety]Using advanced conductive technology, it can directly display the high accuracy results of vehicle info. Deigned with polarity reverse connection protection. It will not damage the device or affect the car or battery.5.[Multi-language Support]8 Languages areavailable.Available in English, German, French, Dutch, Russian, Spanish, Italian ,Portuguese.functions:1..Test Result Good, Recharge or Replace2.Capacity Cold Cranking Amps (CCA), DIN, EN and IEC information relative to battery rating.Internal resistance value (m) and Life in percentage (%)3.Cranking system and Charging system4.Record and re-play battery data.5.Battery test, cranking test, charging test and other additional functions.6.The major battery standards CA,CCA,BCL,MCA,JIS,SAE,EN,DIN and IEC are supportedfeatures:1.DATA READINGSThe KONNWEI KW208 12V car battery tester is able to effectively analyze and read important car data such as voltage, internal resistance, cold cranking amp and AH capacity, battery health and charge status.2.ACCURATE MEASUREMENTSThis professional automotive battery tester provides accurate results, calculates the cold cranking capability of the battery and the aging extent, allowing for a quicker, more precise car repairing.3.WIDELY COMPATIBLEBeginner or expert, this car battery diagnostic tester can be used with a wide selection of 12V 100-2000 CCA regular flooded batteries, AGM flat plate, AGM spiral, as well as GEL batteries.4.EXTRA FEATURESThe KW208 car battery tester displays test results in text , displaying the real-time battery voltage. With an intelligent 2.4 backlit and STM32 main chip, reading access is practical and rapid!How to use it?Step 1. Connect the 12V battery, red clips to positive pole and black clips to negative pole.Step 2. Battery Test: Firstly select the type of battery to be tested, then the test criteria and the test range, and then you have the results within few seconds.Step 3. Cranking Test: After selecting the cranking test function, follow the prompts to start the engine. Test completed.Step 4. Charging Test: After entering the charging test function, follow the prompt to increase the speed to 2500 RPM for 5 seconds, then press OK. Test completed.