KINGBOLEN BM550 battery tester Very easy and simple to use (intuitive operation) Clear and legible 1.8" display 6V/12V/24V ranges The tester is compatible with batteries: Testing 6V/12V/24V batteriesKINGBOLEN BM550 battery tester allows you to measure:KINGBOLEN BM550 tester advantages Simple and easy to use Test the battery inside and outside the vehicle Large readable 1.8" LCD display Test results based on JIS, EN, DIN, SAE and IEC standards Testing the vehicle starting system : starting time, voltage and condition Vehicle charging system test: load voltage, unload voltage AH range: 2-220AH voltage and % battery charge / battery test inrush current / crank test alternator operation / charging test internal resistance/resistance of the battery Acid / Lead (regular / regular batteries) AGM flat / plate Spiral AGM Gel EFB Specification: Operating Environment Temperature: 0*C to 50*C Storage temperature: -20*C to 70*C Housing material: ABS plastic Battery capacity measurement range: 2Ah-220Ah Voltage/Application: 6V 12V 24V Input voltage: 4.9V 32V Battery condition measurement results in %: SOC - battery state of charge SOH - degree of battery wear R - resistance VOL - voltage state (V) The kit includes: KINGBOLEN BM550 tester Packaging in a plastic blister There is no need for additional batteries and accumulators to power the device, It is powered by clamps directly from the tested car battery. Cable connection: red () black (-) Dimensions : height 124 mm width 70mm thickness 23mm