There are various types of ignition modules manufactures will use when designing their grills. Here we will show the different types.
The piezo ignition is one of the original ignition systems made to automatically light a gas grill. You would either push a button or turn a knob in a rotary style igniter and hear a hard click. Charbroil made the push button piezo ignition popular in many of their grill designs. Many high end brands opted for the rotary style piezo igniters including TEC and Lynx.
These igniters create clicking continuous sparks until the burners ignite. Battery systems will use either AAA, AA or 9 volt batteries to generate the power. There are some igniters that do not have the battery directly placed in the module. For example, in the picture below, The spark ignition does not take a battery directly, rather the 9 volt gets places in a battery holder that gets plugged into the spark generator.
This is the latest innovation found mostly in high end grills (including Alfresco, Artisan, Lynx, Fire Magic and more). This means no more batteries. But you will need electricity to power the ignition. The ignition module is powered by a transformer and the electrodes get plugged into the module.