The battery tester can detect all automotive 12v and 24v (test range: 3Ah - 200Ah) lead acid batteries, such as regular flooded, AGM flat plate, AGM spiral, GEL and deep cycle batteries. It gives you accurate test results in just 3 seconds based on SAE,DIN, IEC, EN, CA, JIS standards.(Note:You cannot test lithium batteries.) Select the test program according to the battery type/standard/CCA, the battery tester will start working and quickly show you the battery CCA value, health (%), state of charge (%), voltage (V), internal resistance () and so on. By analyzing the test data, you can check the condition of the battery and judge whether it is in good condition or needs to be replaced to avoid accidents caused by battery failure. Its small, compact design makes it easy to carry and store. 12V&24V battery tester adopts advanced conductive technology, which can directly display the results of high-precision vehicle information. With reverse connection protection function, even if the positive and negative poles are connected incorrectly, the battery and equipment will not be damaged. Easy to Use: The smart battery analyzer is connected to the battery interface through alligator clips, which is convenient for installation and testing. The LCD display clearly shows the test results, making your operation easier. Battery tester is a very practical analysis tool, widely used in automobiles, MPVs, RVs, pickups, motorcycles, golf carts, lawn mowers, ATVs, lawn tractors, SUVs, off-road vehicles, ships, classic cars , agricultural vehicles, ships, motor boats and other lead-acid battery testing