Product Description 1. Strong Capacity: Works on 12V batteries, battery ratings from 100 - 2200 CCA, including starter and alternator tester; 2. Test Multiple Battery Types: regular flooded, AGM flat plate, AGM spiral and gel; Test standards: CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE; 3. Support both in-vehicle and out-of-vehicle test, no need to remove the battery; 4. Battery Health Test, Cranking Test Charging Test 5. Test result: SOH, SOC, CCA value, CCA rating, voltage, internal resistance, etc; 6. Provide reliable results within seconds, accurancy up to 99.9%; display suggestion according to the testing results (Good, Recharge, Replace), detects bad cells directly; 7. Polarity reverses connection protection; 8. Support 8 languages: English, Russian, French, Spanish, German, Italian, Portuguese, Dutch, etc. 9. Suitable for automobile factory, garage, auto battery manufacturer, and DIY enthusiasts, etc. WARNING: - If there are abnormal test results, maybe your battery is overcharged or incompletely charged. So, the battery will be damaged or its life will be greatly shortened, then you can take action to deal with this issue. Know your battery conditions in advance before it dies! Plug and play--input the rated battery capacity, KW208 will start analyzing the battery's CCA value, charge (%), voltage (v), internal resistance (?), rated CCA, battery healthy (%) and display the test result on screen within seconds. Provide 5 kinds of professional advice accordingly: GOOD BATTERY: The battery is without any problem, use it without worries! GOOD, RECHARGE: Good battery but low current, recharge before using. REPLACE: The battery is already or near to reach the end of the using life, please replace the battery. BAD CELL, REPLACE: Battery interior damaged, bad cell or short circuit, replace the battery. CHARGE-RETEST: Unstable battery shall be recharged and retested to avoid error. Multi-tests in One Battery Tester All-in-one 12V car battery tester with cranking and charging system test, load and alternator tester. FAST ACCURATE RESULTS With the best STM-32 main chip, KONNWEI KW20812V automotive battery analyzer testing speed is much faster than others, also provide more accurate and reliable results. High precision amplifier which calibrated by professional instruments, giving you more precise reports within seconds! CONVENIENT TESTING SITUATIONS No matter the batteries in the vehicles or out of the vehicles, KW208 will finish its testing job excellently, pocketed size let you can bring it to anywhere you want. Support 8 languages Support 8 languages. English, Russian, French, Spanish, German, Italian, Portuguese, Dutch. Alternator Starter Test Display SOH (State of Health), SOC (State of Charge), Voltage, Current, Rating, and the readable analysis results on the 2.4-inch LCD screen. Charging Test Cranking Test Test different parts of the charging system, including generator, rectifier, rectifier diode, and so on for a reliable charging volt value. Cranking test helps you analyze the starting motor including cranking voltage and the cranking time to check the starting motor works properly or not