OK. So if it says fits most 510 models than that should be the more cigarette like battery and if it says the ego thread that is like my Halo Triton. I can put V2 carts on it and the cone to make it look normal. And I'm assuming the 808 is more like a cigarette?
510 and 808 usually refer to the thread type on a battery or the cartridge that screws on to the battery. The cartridge can be a cartomizer, a tank, a clearomizer, an atomizer or a two piece system with an atomizer and a cartridge that plugs into the atomizer. 510 for historical reasons can also refer to the small cig look alikes with a 510 thread and this causes no end of confusion for beginners. With this one exception the term 510 has nothing to do with battery size or looks.
The battery just delivers electricity to the cartomizer, clearomizer, tank or whatever you use to deliver the juice with. A battery 510 with a 510 thread can be any size or shape.
The 510 is the most popular thread in the vaping community. Almost every juice delivery device can be had with a 510 thread. The 808 thread is second but it's popularity is declining. Right now all you are thinking about is something that will give the the taste and feel of a cigarette. We all went through the same thing and most of us got tired of the limited abilities of the small batteries and went on to something we consider to better and more convenient.
I always recommend a device with a 510 thread because most though not all people will go on to something else. When they do the investment they made will still be useful with that new device and the transition will be easier and less expensive.
