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. Regardless of Positive and Negative: Even if the positive and negative poles are reversed, the battery test can be performed, and without damaging the battery tester! Also, the accurate result will not be changed with reversible access; What's more, the BM520 device will give a reminder notice display on the screen when the connection lose.
