Automotive Battery Ignition System : Parts, Function, Working, Advantages and Disadvantageas The EngineerOctober 6, 2019April 11, 202114 Advertisement Most SI engines used the battery ignition system. In this system, a 6 volt or 12-volt battery is used to produce a spark. Passenger cars, light trucks, motorcycles, and large stationary engines are fitted with this system Read More: … Read More