Andria, I didn't get a chance to reply about this last night. But I have the same problem with both of my kbox minis I just received. I solved my problem by using SMOK afc's on both of them. I always use those on my mods anyway, so no big deal. I've found them very handy now that I'm using rebuildables, since a lot of those have shorter center pins. That saves me the problem of having to adjust them differently for each of my mods. I think one of Mad Vapes circuit board spacers would also work well.
I'm really not liking these as well as my iStick 30W. There are several other issues that annoy me. The screen is really dim compared to other mods, and since it is so tiny, it's really hard to read. And then they decided to put the volts at the top rather than the resistance, which is different from every other mod I have, so that took some getting used to.
Another issue is the fact that the positive pole of the battery goes to the bottom instead of the top, as with most other mods. I just know that one day I won't be paying attention and will put a battery in backwards. Hopefully the board has protection from that and I don't fry the board. Then there's that awful tiny little fire button. It's not very comfortable to me and is not nice and clicky like I'm used to. So I get a lot of phantom fires when I use this. And I don't know if it's because I'm not getting the fire button pushed right, or if there is an issue with the board.
And last but not least, turning it off or on requires 3 or 4 times of clicking the fire button 5 times before it finally does what I want. To say the least, I'm pretty disappointed in this mod. I'm glad it was cheap. Everyone complains about the iSticks being cheap, but at least they're a comfortable mod and do what I expect them to do.
True all dat. It's quite small in my hand, as much so as the iStick30, and since getting used to my CF4s, I find that not quite as "ergonomic"... but I do have rather large hands for a female. It's heavier than the iSticks that's for sure, even heavier than the CF4s. I actually like the magnetic battery cover, nifty idea, and the magnetism seems quite strong -- I just had to remove a bluedriver that was stuck to the outside of it! -- but I agree, it's weird having the positive pole at the bottom -- but it says that it does have reversed-battery protection. I agree, it's weird having the ohms and voltage in reversed positions; took me a minute last night to figure out WHAT was going on, when it wasn't recognizing the atty, but I recalled it was a fixed battery post, and lord knows THAT's familiar ground, with the vv3s.
But I can't say that any of that really bugs me; just the tiny buttons that are hard to "get to" to press. But, I mainly bought it because a) it was cheap, b) I needed to replace one of my iStick30s, and c) since it takes external batteries I thought it was an excellent replacement, for vapocalypse reasons. Still kinda bugged about having to buy new different batteries for it, but what the hey, the Efests are getting on in age anyway, about a year and a half old, so they'd have needed replacing soon in any case. Just snagged a couple of those 25Rs from Ilumn, great price.
I'll probably get another couple of boxes that take external batteries; the Sigelei 30w Mini is probably cheap now, with the fad for astronomic wattage and TC, but I've heard that the threads in those aren't stainless, so I dunno. Weird that they had stainless threads in their Zmax's, but went to softer metal in their boxes. I don't really like to put other things under my attys, I like to keep them as low-profile as I can -- one reason I was fiddling with other attys last night, was looking at how great the tiny Derringer looks on it (my Derringer is black). Got my husband to get out the black electrical tape so I can tape up the other air slot, see if i can fix that one to accommodate my tight-draw preference -- I'd really like to use it, it's so tiny, if I can make the draw tight enough.
Andria
I lost some books, but the biggest PITA was the godawful stink from the old carpet, for WEEKS... 
