Why do you need this battery tester? Select the test program according to the battery type/standard/CCA, the battery tester will start to work and quickly display the battery CCA value, health (%), state of charge (%), voltage (V), internal resistance () and more. Through the analysis of the test data, the condition of the battery can be checked to determine whether the battery is in good condition or whether it needs to be replaced, so as to avoid accidents caused by battery failuresIts small and compact design makes it easy to carry and store. What kind of batteries can it test? FBT200 battery analyzer can detect all automotive 12v and 24V lead-acid batteries, such as conventional flooded batteries, AGM flat-panel batteries for cars, SUVs, light trucks, motorcycles, etc.AGM spiral battery and gel battery. It gives you accurate test results within 3 seconds according to SAE, DIN, IEC, EN, CA, JIS standards. You cannot test lithium batteries. Scope of use: All automotive lead-acid starting batteries, including ordinary flooded, EFB, AGM flat-panel batteries, AGM wound batteries, GEL batteries, WET, etc. Suitable for: car factory, garage, car battery manufacturer, car battery agency, educational institutions, DIY enthusiasts, etc.