[FOR ALL 12V CARS] Works with all 12V 100-2000CC lead-acid batteries for automotive, including normal flooded, AGM flat plate, AGM spiral, GEL and EFB batteries for vehicles, SUVs, motorcycles, light trucks, boats and more. Crank and charge tests: the car battery tester shows you the test results (actual starting voltage and starting time) of the starter system in milliseconds to indicate whether the starting system works as expected. In addition, the battery load tester performs a complete check of the 12V charging system to ensure that a normal generator output - a proper working rectifier diode and a controlled charging current. [Easy to use] The battery tester has a large LCD display with white backlight and contrast setting that shows the test results directly. No internal batteries are required and powered directly from the 12V battery. [Wide test range] "Does it work with my battery? This is one of the most frequently asked questions. Our battery tester is tailor-made for most 12V batteries such as normal flooded batteries, AGM flat plate, AGM spiral and gel batteries and strictly follows the CCA, BCI, CA battery standards. , MCA, JIS, DIN, IEC, EN, SAE, GB [Starter & Generator Tester] This professional battery tester is not only an excellent battery charge tester that tests the starting and charging of batteries, but can also test the charging and starting conditions of the generator. And it can switch up to 8 languages for different requirements (English, French, German, Dutch, Spanish, Portuguese, Russian and Italian)