3-in-1 Design: It is designed to support 6V, 12V and 24V batteries with a capacity of 100 to 2000 CCA, suitable for Ordinary battery, AGM flat battery, AGM wound battery, GEL battery, EFB battery; The test results are based on CCA, IEC, EN, DIN, CA, BCI, MCA, SAE, GB, JIS standards. Upgrade Worry-Free: Life-time FREE update and Simple upgrade process, connect the battery analyzer to the laptop via USB cable, copy and paste update files to removable disk to finish the upgrade.