My quite personal KR8 review

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AlexTM

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Dec 7, 2009
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I know, wall of text. But if you are interested in the subject, you might find it worth the while. At least I hope so.

The KR8 and yours truly: That's not a marriage made in heaven. In fact, it's more of a meeting of two strangers in the night, not really expected to meet again. Not until they solve the burned plastic and the "gets too hot"-problem.

Let's start at the beginning
I have been vaping for two months now, on my beloved 510. Occasionally, I use a 901, and I do have a cigar, too, which I however use rarely. I first heard about the KR8 in a German forum, in a posting that came with pics of burned filling and a big, fat warning. Did not sound like anything I'd like to try. 2-parters are not all that popular in Germany anyway, and I don't think any of the popular stores even sells the KR8.
Then I came here, and a few people here promote the KR8 as if it sure beats sliced bread as the most important innovation since the wheel. In fact, listening to some people, it beats the wheel. Puzzled, I investigated. Checking everything I could find on the web, it seemed to me that several claims could just not possibly be true, while others remained questionable.
In the end, there was only one way to find out: Try it myself. (After smoking for almost 30 years, I figured, even if I'd get burned plastic, it could hardly make things much worse.)

If it came to the worst, I'd only waste 7$ for a pack of cartomizers and still have a cool 380mAh battery which fits my 901 atties and with an adapter my 510s, too, so I ordered. (380mAh battery, adapter for 510 so I could charge it in my 510 loader, and 5 blank cartomizers, all from heaven gifts.) It was delivered, I tried it for more than a week now – and I am still underwhelmed.

Now, as a fanboy already remarked: Me trying a KR8 and being underwhelmed was not the biggest surprise he ever had. Yes. Even before I tried them, I pointed out several problems that were due to design, and I was not mistaken about those. Not to mention that burned plastic, it would take a lot to overcome that. But I have done my best to be reasonably objective here, I freely admit that I was surprised just how good they can taste, and I do not think you will find anything here stated as a fact that just is not. Which is more than you can say for some people's claims. This is my personal impression of a KR8. If you have any doubts, check it out yourself.

I compared the KR8 to both a 510 and a 901, all loaded with the same flavour, Egg Liquor from TCT. This is a very biscuit-like flavour, which is neither too harsh for a test, nor too delicate. I also filled one cartomizer with my current favourite, but I think this cartomizer was slightly broken from the beginning, so I am not counting it in. (See here, and it did not taste all that brilliantly, either.)

The pros:
  • Taste is good. It's even excellent, better than a 901 (because vapour on a 901 is fairly cool) and also better than a 510 (because it is less harsh). For about maybe ten puffs, then, unfortunately, the vapour gets to hot to enjoy. See below.
  • Reasonably easy to use, as long as you don't want to refill and have enough light when you screw on the cartomizer. See below.
  • Fairly large capacity for liquid (So has a 801, a cigar, or a mega-cart for 510s)
  • Doesn't use as much juice or battery power as 510ers, or so I have been told. Hard to say, because I always have to put them down to cool off.
  • 380 mAh batteries
  • No leakage, due to design. (Can of course still leak from the bottom hole.)

The cons:
  • Burned plastic. Yummy! Just a few pics: Burned filling IIIIIIIVV
  • Not as easy to refill as a 510/901, except with the whistle tip, which has other problems. See below.
  • Expensive if you don't refill. In fact I suspect – but I have not burned enough atties/cartomizers of either model to say for sure – that it is slightly more expensive even if you do refill. Probably not a very large amount per day of vaping, though; a few cents at most.
  • Vape gets hot for several people, so hot that some rotate their KR8s so they can cool off between vapes. I would have taken the possibility into consideration that I just got a whole pack of bad cartomizers, but then read about other people having the same problem. And I don't know, but remarks like "C’mon, do you really only have one battery?" don't exactly convince me. I may have more than one battery (and just for the record: I do only have one KR8 battery), but am I really supposed to rotate a few KR8s with the same flavour while out of the house, just because those things get that hot? I don't think so. I usually carry several 510s – but because they have different flavours each, not because they get too hot after a few puffs.
  • Tricky to use. That is directly related to the "too hot" point. I found that the only way I could get more than maybe three puffs out of my KR8, I had to do two things: Make sure that the little gaps in the cartomizer were lined up very exactly to the small holes in the battery. That is not as easy as it sounds, because they are spaced out in slightly different distances. With the hardware I have, this is a matter of millimetres. With both my 510s and my 901s I just screw on the atty and am done. I also have to take the KR8 fairly deep between my lips. Now if you did that with your analogs, too – and many people do that – no problem at all. I never did, and I had to get used to it, so that the vape had an inch or two within my mouth to cool off, before it hits my tongue. Annoying, as far as I am concerned.
  • Slightly uncomfortable to hold between your teeth, which I believe quite a few people do. The size is the same as round 510/901 carts, but those are slightly soft, while the KR8s are metal with a bit of paper around them.
  • Paper label looks cheap. In fact, the whole thing looks quite cheap, on closer inspection. Which of course it actually is. (Yes I know this is subjective, but the white side of the black paper around my cartomizer stands out very badly.)

Refilling:
I found three methods of refilling KR8s:
  • Remove the top and slowly, evenly drip. And I mean slowly and evenly, you actually have to pay attention, more than with a 510/901, because the cartomizers are very easily flooded. Works great for me, actually. Only, how exactly am I going to do that when I am not sitting at my desk? Or any desk? I need a tool with me at any time, and a place where I can put the top and silicone ring. Works, but not exactly something for when you are riding your bike or traveling by train or similar. And you are also not supposed to refill until the filling looks decently wet, as with a 510/901. So even that is refilling slightly blindly.
  • Syringe. Works great as well. Means, though, that you need to carry a syringe with you, either a filled one or syringe and bottle. I already switched from a variation of the ADM-mod for 510 carts because this mod is easiest to refill with a syringe, and not that good with a dropper bottle. I like easy refilling, not one where I have to carry something that would get me a few very interested questions from every police person who sees me refilling. Hence it's Fluval and Straw for me now on the 510 – and certainly not refilling by syringe for the KR8, either.
  • Dripping into the battery end. At least with this you only have to carry a dropper bottle. You need time, though, since it is excruciatingly slow, and you need to stand steady, because it is a very small hole you drip through, and you can really only drop one drop at a time. Wait. Another drop. Wait. Another drop. Wait. Another … Well, you get the picture. As with the syringe filling, you also have no idea when the cartomizer is full, so it is pure guesswork to refill.

Whistle Tip mod:
There is also a related mod that does indeed make refilling easy: Remove the top and the silicone ring and use a 901 whistle tip mouthpiece. That makes refilling method one also very easy, almost on par with refilling a 901/510. (You still have to take more care and drip slower, but let's not be too nitpicky here.) You have to get the whistle tips first, though. (510 carts don't work, except the ones I have which are labeled "Smuke". Those fit even better than the whistle tip 901s.) And the vaping experience is quite different, too. While the KR8 delivers pretty hot vape after a few draws, with a whistle tip it is downright cold. Not to mention that at least my whistle tip sits very loosely in the cartomizer, so that holding it between my teeth is a bit risky. I most certainly would not try that while riding my bike. And considering that I do so without hesitation with a 510 at current temperatures (often below zero C°), you know I don't worry about loose carts/mouthpieces too much.
And wasn't the KR8 this absolute You'll-never-need-a-mod wonder?

Summary:
Don't bother. Taste may be great, just don't vape heavily, or keep several in rotation. Another undeniable plus is that they cannot leak. You can still overfill them, though, in which case they don't work very well, to say the least. I did that and it got incredibly hot. (Also, if you bother to learn how to refill your 510s, they don't leak, either.) You can get the KR8 going decently, although that is a lot of work and has quite a learning curve. Providing you don't mind the hassle of refilling them, they are probably not much more expensive than 3-piece PVs. Long-lasting batteries and cartomizers are nice, too, only, they also last so long because there is not all that much being used in the first place. Your food lasts longer if you only ever eat half of what you want, too, but somehow, that is not all that satisfactory. And the cart condoms. The cart condoms are great. I want to buy those in bulk. Without the cartomizers, please.

Everything else is either worse than a 901/510, or not better. Most is worse.

The very design is a problem. The execution of said design is cheap. (I know it is supposed to be cheap, but does it have to look that way?) Putting the actually atomizer right into the plastic filling is an invitation for problems. Such as burned plastic you will inevitably inhale. Refilling sucks. Vape gets too hot to be enjoyable after a very short time, and I refuse to rotate half a dozen of them things just so I don't burn my tongue! I don't mind rotating between tastes, but that is slightly different.

So, no, the KR8 is not for me. I'll stick to my 510, and when I want to vape delicate flavours, I use my 901. That is not exactly bad, either, and I save myself a lot of hassle – and burned plastic.
 

yovapavapa

Moved On
Jan 30, 2010
57
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kyle , tx
alextm , what the hell are you doing to that 808 ? it seems like you are mad hitting it while deep throating it .where did you get you carts and 808's from , goodwill ? I have held down the 808 with a filled carto for 40 seconds and it did not get hot . I have been through quite a bit of cartos and never seen one look like any that you have put in those pics . i can say refilling has very little guess work to it due to there will be some liquid still left in it . filling a new or rinsed cart is easy , just drop 10 drops rotate 180 degrees drop in 10 more put caps back in a do the spin trick and it is ready to go . I use 1 battery and 1 cart at a time and never had problems now when it starts to taste slightly off after about 2 -3 hours of vaping i will top it off , which usually takes 5 - 10 drops . I am taste picky as well i always like a fresh taste . i do keep at least 10 carts filled with me so i do not have to stop and refill them . all the problems in your cons i have never seen . maybe i should do an experiment and burn one up and see what it takes to do that . ideally i use 5 carts per 20 ml's of fluid and refill them a few times , but they can be used for more than that .I really just do not see how the carts got burnt like that unless they were cheap crappy carts or have been burned dry .
 

AlexTM

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I know it's a wall of text, but the tip with the 901 mouthpiece even has it's own little headline ;)

I got carts (and battery) from heaven gifts. Where I buy a lot of my hardware, and never had any problems. Ordering from the US would have been very expensive, and it's not as if there were any produced in the US.

I also hit my KR8 at most as hard as I hit my 510, and most of the time gentler than that. Can't hit it all that hard, anyway, because even the manual battery has a 5-seconds cut-off. Not that I get there often.

Those pics of burned plastic obviously are not from me, I have not dissected a KR8 yet, and I am so carefull to keep it filled, I might never get that. Then again, that's what at least a few of those who found burned plastic say: "I always kept it wet, but …" Finding 5 of them within minutes, though, is not exactly confidence-building, to put it mildly. Especially since I just linked to pics, not to reports without them.
BTW, from what I heard, several carts that were found burned looked and tasted OK as long as they were not dissected. So if you never found that - did you even look?

As for refilling, sorry, but I flatout refuse to play windmill with my PVs or parts thereof. (I also don't like to carry filled carts; but that may be because with a 510 you don't have to.) The guesswork is also not when to start refilling them (as I do that at the faintest hint of vape getting less, which in turn leads to refilling like 10 drops, which is about 2 drops more than when I top off my 510. Wow! Two drops!). I have to guess when to stop, though, because I have found several advices saying they must not look decently wet, as with a 510/901. Which is correct, I found - too much liquid, and the thing gets even hotter.
 

yovapavapa

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Jan 30, 2010
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kyle , tx
i have used 808 carts only . i refill them about 20 times and then retire then . natural curiosity makes me take them apart for inspection and not even a hint of burnt color . i rinse them as well when i take them apart to check for burnt anything . the batting and wick are white and looks like new . also my carts guts do not look like the ones in those pics . it seems like the carts in those pics have very short atty coils compared to mine .that could be part of the problem since i noticed the burns on the batting are where the coil is . also the insulated wire i do not see in my carts at all , i do not know if that even has a factor in the burning . I will say the 808 to me is very easy to use . i keep a lot of filled carts in my vehicle so i will never run out . keep 4 in my case with 2 extra batts .it just seems like the burnt carts in those pics are cheaply made . once i have filled carts i do not have to worry about them for a few days or up to a week . most of the time i have 35 filled carts made up so i will not have to mess with juice every day . i wish you had better luck with the carts and the 808 . i guess i just had to defend the 808 cause it has been a life saving device to me . i apologize about coming off too strong .
 

AlexTM

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To the best of my knowledge, all KR8 carts are made by Kanger. (I have not done in-depth research on the subject, but that's what I kept hearing, and nothing to the contrary.)
Greencigs though have a very similar concept, but to not burn. Haven't looked into those, yet.
Also, as far as I can tell, those cartomizers in the pics come from different sources, pics have been taken at different times, etc. That would rule out a bad batch, too.

The problem is in the design – the heating coil without much around it going through cheap plastic fillig is bound to produce such results, at least occasionally. You'd either have to isolate the coil better, or use a filling that cannot burn. The 510/901s (and others) have the whole net between the plastic and the actual heating coil, hence you may get occasional melted fibers, but I have not yet seen such burns. (Although a thoroughly messed up atty could maybe produce them, but I think you would notice before you inhale.)
Another problem is that people find these burns in carts they did keep wet and where they did not taste anything strange. So you can't tell if you are maybe inhaling that. And you do taste melted fibers in a 510. (I had that exactly once. I knew I'd better stop vaping and check.)

I understand why people like them, and if the vape did not get that hot, and I would not have to worry about burned plastic, I'd probably keep a few around, just as I keep a few 901 atties around. The taste is absolutely great, and while I think they are more hassle than a 510, it's still managable. But I think they are too dangerous.
(And some fanboys are getting on my nerves, too. Which does not apply to you, yovapavapa.)

Also, consider this: The FDA is looking for reasons to go after PVs. Those pics look like excellent reasons to me, and do you seriously think they would just go after KR8s? And if the FDA bans PVs, a lot of countries are probably going to follow suit. That does worry me, too.
 

mn shutterbug

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While reading your post, I decided to start sucking on mine via my pass through and see if it would get hot after 10 good drags. I put it down for just 5 seconds between drags, and it never got hot. I was drawing pretty deeply, too. I just think you have something defective. I'm still a noob, and this is all I've used, but it pleases me.

Also, I saw in another thread where a person can remove the white cap at the end and the o ring, and replace it with just the condom with a hole in the center, and it works just as well, easier to remove for refilling and feels better to chew on.

I vape mine until the flavor is pretty much gone, and then refill with 20 drops. So far, so good.
 

Fishin' Cricket

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Jan 29, 2010
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No offense to the original poster, but (being a bit of a writer myself) I can't help but notice that, even the tone of your piece comes off as "KR8's aren't worth it" being your foregone conclusion...

As I have not tried either model yet, I can't say whether I agree or disagree.. However it does appear as though your particular slant would have to be taken into account when considering your write up..

Or maybe Im just justifying to myself cause I decided to go with the KR8 over the 510 (ordered last week)

thanks for making me think...
 

AlexTM

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I have indeed never denied that even before I got a KR8, there seemed to me several problems caused by its very design; not to mention those burn holes. It's like a car that uses up twice as much gas as every other one you consider – it will simply have to have some very great advantages to make up for that.

As for my KR8 getting that hot – I saw other people reporting the same thing, and therefore, if it is bad equipment, there is a lot of it around. Even just in the thread I started because I wanted to make sure I made no mistakes when testing a few people said that. With every type and brand you will get a few pieces that don't work properly, but if that happens with too many, it does become a problem of that whole type/brand/whatever.
 

AlexTM

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There are several reports out there of people who had at least brown bits, some holes, and no burned taste whatsoever. I dunno, can they all lie?

This is simply a design problem – to put something that can burn so easily that close to something that gets so hot is an invitation for problems.
And, I might add, to the best of my knowledge, one company at least does manage to build something very similar, which does use a filling that can not burn. Which makes the KR8 even worse – because it is not as safe as it could be.

And I may add again: Without that problem, and if you find 5 pics in 5 minutes, it is a problem, the KR8 would not be half bad. Still too hot for my taste, but I suppose that problem could be solved fairly easily, too. And it seems there are enough people who don't mind that, anyway.
 

mn shutterbug

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I have already discovered that there is quite a difference in cartomizers. I'm not going to name companies, but the pre filled carts I got with mine are working great, even after refilling. A few I got from another supplier will not work with my original batteries. They'll only work on my pass thru, and the draw is harder and it does get warmer, but not hot. The first 5 I got I'll continue to use with my batteries, and the other ones with my pass thru. I blame your carts.
 

AlexTM

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Well, it certainly wasn't the battery. However, carts labeled "KR808D-1 cartomizers" coming from a perfectly reputable vendor should be OK; not to mention that those who posted the pics most likely did not buy all at the same place, either.
Maybe you should ask them where they got theirs. It would be interesting to know.

And yes, I should think that anybody who ever found a cartomizer they just vaped looking like that might be looking for another PV. Or, worst case, but hardly difficult to understand, get back to analogs.
 

Taryn

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I always tear apart my cartomizers before I trash them and though I haven't had to throw very many I only found evidence of burning in my first one. I honestly do not consider it as big of an issue as you seem to.

I also need to comment on your talk of lining up the pinholes at the battery threads with the slots in the cartomizers, they are not made to all line up at once. I'm honestly rather surprised that you have been able to make that happen. I've also never seen that make a difference in how hot the cartomizer is running. I have only seen it get too hot when you take several draws one right after the other with no resting in between, I don't vape like I used to smoke so I'm in no hurry to "finish my cig".

I've never had the need to refill my cartomizers on the go, I just take an extra one with me and switch them out. Saving my refilling for when I'm watching a movie or tv. I am one of those who does go for a full refill, about 30 drops into an empty cartomizer. Some others prefer topping off, it's nice you can choose between the two.

A whistle tip is an option for those who desire it, not a required mod just to make it work properly. I personally do not try and grip my PV with my teeth so I won't bother with it.

The KR8 is obviously not for you, but I absolutely love mine and find it fits my needs extremely well. My pros vs cons list would look quite different than yours.
 

AlexTM

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Well, I do manage 3 open holes, just barely. And my cartos get a lot hotter when I don't do that. So hot that I cannot even take three puffs - and I counted, up to 5 secs draw, 10 secs rest - with the third getting too hot. (I may have already mentioned that.)

Of course, different people will prefer different things. If the KR8 matches the way you like to vape, fine. It does not quite match mine. Equally fine. That still leaves the open invitation to the FDA regarding the burned filling, which would be avoidable - by the manufacturer, who does not seem to be bothered by it. I am.
 

callofthevapor

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Sorry your experience with Kr8 didn't seem to match mine or many other people. I enjoyed reading this review as much as I had reading your opinion on the Kr8 before you bought one. I'm always glad to read peoples reviews and learn from them. I was ready to try the 510 but since our experiences with the KR8 are so different I think I might as well skip buying one. If I like the Kr8 and you don't then obviously what you like I won't.
 

Katmar

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    Sorry your experience with Kr8 didn't seem to match mine or many other people. I enjoyed reading this review as much as I had reading your opinion on the Kr8 before you bought one. I'm always glad to read peoples reviews and learn from them. I was ready to try the 510 but since our experiences with the KR8 are so different I think I might as well skip buying one. If I like the Kr8 and you don't then obviously what you like I won't.

    Call, I have both, but I seldom use the 510. Different taste, and you have to have liquid with you at all times. I find it too much of a hassle, and the flavor is less with a 510. I like refilling the cartos with the kr8, then all you have to do is make sure you have an extra and maybe a spare battery if you're going somewhere.
     
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