... go down to the position ,and blow into 1,3,5 holes of the battery to test leakage,then below into 2 ... ,4,6 holes to test leakage.If unqualified,the machine will give an ... ACCURACY:100Kpa pressure point,0.1%; 20Kpa pressure point,0.5%TESTING TIME:0-99s, adjustableELECTRIC POWER:AC380V,50HZ,1KWCOMPRESSED AIR ...