Basically, an e-cig is a handheld battery powered vaporizer. The main parts that make up an e-cig are a mouthpiece, atomizer tank, coil, wick, atomizer deck and a battery. The user inhales the aerosol, commonly called vapor, rather than cigarette smoke. The vape then provides you with a flavor and feel similar to smoking tobacco but minus the expense, health-related issues, and stench.
Ok, let’s break it down.
The mouthpiece often referred to as the “drip tank” is the part that comes in direct contact with the mouth. They come in lots of different shapes and sizes making it super customizable. Shop mouthpieces here
The POD, this is where the e-liquid is stored and essentially where all the magic happens. The POD itself can either be refillable or pre-filled. Refillable POD's allow you the control of what liquid you want you use while a pre-filled takes all the hassle out of the equation and is good to go as soon as you buy it. Shop POD's here
Battery, when the user hits the power button, this is when the battery kicks in! When the user pushes the button, or (in some variations) activates a pressure sensor by inhaling, the coil and wick then atomizes the e-liquid. Most batteries are rechargeable by threaded or plug in USB connections. Shop batteries here