For noobs

This post will be for noobs, which is ok because eventually you will not be a noob. Most smokers who have just started vaping will have a cigalike, which is a cigarette look alike. These are ok but they are very high with nicotine levels because it is for new vapers and people who used to smoke. Most of them are disposable and have very short battery life, but some are now being rechargeable with replaceable cartridges. Then after a new baby vaper decides to take his first steps he or she would get a true two part refillable e-cigarette. These include models such as EGO-C, EGO-T, Vision Spinner II(which I will review soon), and many other batteries. Then you have tanks or cartomizers that hook up to those batteries such as CE5(great starter tank), Kanger Pro-Tank I, II, or III(they also come in mini), the Aspire Nautilus, and many more of the like. Now these tanks are able to be refilled with liquid that you buy from online or stores. They come in a wide range of flavors and strengths of nicotine. Also these batteries are rechargeable and they are pretty reliable. Now here comes the heavy machinery: MODS. These are separate batteries that you put in a conductive tube that has two conductive pins and a button. This is one of the most powerful devices you can vape on. They are non regulated and have no protection from shorts, so be careful. You can tun some tanks on these, specifically ones with 510 connectors, but these batteries are meant for, and preform best with RDA's or RTA's which stand for Rebuild-able Dripping Atomizer or Rebuild-able Tank Atomizer. With these you must make your own heating element or "coil" out of kanthatl, nichrome, or g-plat wire. Then you must put your own wick which can be cotton, silica, eko-wool, rayon, stainless steal mesh, or any hybrid of those listed. Then you drip your juice directly onto the coil. This final setup or step in the evolution of a vaper is the best for flavor, vapor production, nicotine delivery, and it is super super durable. Now with each step up the equipment gets progressively more expensive but it is worth it.
Hope this helped if anyone had any questions or concerns. A great source to gather knowledge on all of this is the E-Cigarette-Forum, which I have a link to at the top with the pages.

Have a great day and hope you enjoy.