Don, Great Info. I had been researching & with your's and others' help I chose the KR808D I don't know the difference between KR808D and the KR808D-1? So I am not sure which model I have. What is the difference? (I also ordered from V4L) I am confused.
Thanks, SkyBlue! For (almost) all practical purposes, MistressNomad is absolutely correct: "the 'KR808' is just a shortening for the cumbersome 'KR808D-1.'" Outside of China, the one exception to the rule is LeCig, which calls the E9 model 'KR808D-
2' or simply D-2. The E9 is a different (incompatible) and more expensive cartomizer-based model, sold as Smoke51, Vapure, Green Smoke, etc.
I prefer the shortest abbreviation: Kr8 (pronounced kreight!). In fact I was part of a group that lobbied for it's official recognition here. Notice the mouse-over definition. Unfortunately, there is not a generally used abbreviation or alternate name for the KR808D-1. Most suppliers use the full model number or some truncation of it. [The one I like least is "808," because it is insufficiently distinguished from other models, e.g., the DSE808 (which is a Janty Stick clone).] Others sell it under proprietary brand names, e.g., Vapor King, Nebula, Easy, etc.
[Esoteric trivia: Kanger is in love with the number 808. Close to a dozen of their models (most not sold by North American or European suppliers) have KR808 in their model number.]
Why would we need an atty added? I bought the cartomizers so atty is included. Are you saying you can still add an atty and a regular cartridge on this battery? I know this would give me more options, but I thought avoiding the atty was the whole point of 2-Part systems?
MistressNomad is right again: there is no separate Kr8 atty/cart system. The point I was making in my review was about the Kr8
battery. I like it so much* that I also use it with my
other (non Kr8) atomizers, e.g., 901 (no adapter required), 801, and 510.
How long until ALL of this makes sense? lol
It will never "ALL" make sense.

But be reassured: very soon it will fall into place for you. You'll have a meaningful understanding of this vaping stuff. [Someone

once put together a six-part introduction to vaping. It's long-winded, but filled with pretty pictures and songs to hold your interest. I link to Part 1 in my signature banner. It might be helpful.] Over time (to the extent you want to get into it) you can explore any of its myriad variations (e.g., the ever-changing world of mods).
* Recently, I've been cheating on my mistress (the standard Kr8 battery) with the new Elegant Easy, also a battery for the Kr8 (and other attys). Regarding which:
...Hmmm.. good to know. I had not heard of that battery yet. Is it the same size as the Ego/Riva? (I wonder if it would work with those chargers?) I had considered getting an adapter to use my 901 on my ego battery, but I am not confident enough in the whole compatibility issues yet. There are so many things that will not work with this battery or that charger, and I have fried more than one item to discover that fact!
It is
approximately the same size as the eGO/Riva, although I don't have one of those to compare. I
think it may be even smaller. It will
not work with an eGO charger. I can't swear that the 901 atty with adapter will work on the eGO. [I don't see why not.] I
can testify that the 510 (and 801) atty with adapter works very well on the Elegant.