Here are the different parts of the e-cig. There's the battery, the atomizer, and the cartridge. The e-cig... also known as the electronic cigarette, the electric cigarette, the vape, and the e-cigarette... is a gadget that simulates smoking without harming the smoker with carcinogens and whatnot using a liquid propylene glycol base and the vaporization process. It's also battery-powered, as many e-cig reviews would take note. The cartridge is where you insert the liquid solution for vaporization purposes.