Snow sir wasn't kidding when he said we've been chatting about these like two little school girls. Simply put they're amazing. On to the hard data to go along with the visual. 
On the 3.5ml tank the carto inside it read out at 1.6ohms, the one on the 6ml tank was 1.6ohms. Just so everyone knows the carto in the tank is replaceable. Don't know when V4L will carry them, but have no doubt they will. Hoping for a non punched carto version of these in the future, they're simply that good. Back to the topic at hand though. These are dual coil cartos, what that means is there are two coils inside each cartomizer instead of the standard one. This has it's advantages and disadvantages, by being two medium to high resistance coils (a 1.5ohm dc is actually two 3.0ohm coils, a 2.0ohm dc is two 4.0ohm coils, etc) means the risk of burning the polyfill is reduced, and you get the vapor production and th potential of a low resistance carto along with the taste benefits of a higher resistance carto. The two major disadvantages are you're pulling twice as many amps as you would on a 3.0ohm single coil putting strain on the batt, and with 5v+ you can burn juice that isn't suitable for higher wattage.
I would have never put a dual coil or low resistance carto on any batt lower than 650mah with at least a 4c rating (meaning it could 2.6 amps before failure) in fear of hurting the cell. Mentioned many times before the theory that the cells in the king diamond and stealth batts have to be high drains to put out the voltage they do along with their ability to hold that voltage with use. These tanks confirmed it. I tried them on not only every batt V4L sells, but also on some unmentionable gen 2 batts from 3 top companies to see how they would handle. Results were and weren't expected.
Vapor King line batts-
Only have a few of these left in my possesion, a very special regular manual, 2 shorties, 1 auto xl, and one manual xl. Could not for the life of me get this tank to fire on any of them. When chatting with Snow sir earlier (will not root for your team sir in order not to jinx them) asked him to test them on a non-king diamond/stealth batt to confirm my findings, and he too couldn't get them to fire. Not sure if the newsest ones will or won't of the VK line because honestly haven't ordered any since the king diamond v2's were released.
King diamond v2 auto shorty-
With the 1.5ohm 3.5ml carto (used this one for every test because it was the lower of the two that arrived) voltage at start was 3.91v on load. The average run time one these using wow cartos was 121 minutes. Now to see what a difference lower ohms make with chain vaping-
3.92v (as), 3.87v (9min), 3.84v (18min), 3.80v (27min), 3.72v (36min), stopped there.
That's right, 36 minutes of use. Do not suggest using these on a shorty, the fact they can even run them is simply amazing. You won't get much life, but they are at least good in a pinch.
Stealth XL v2 auto-
266 minutes is my average with wow 2.3ohm cartos. That is no longer the case with these-
4.02v (as), 3.98v (9 min), 3.95v (18min), 3.92v (27min), 3.90v (36min), 3.88v (45min), 3.86v (54 min), 3.84v (63min), 3.82v (72 min), 3.81v (81min), 3.80v (90 min), 3.77v (99min), 3.75v (108min), 3.72v (117 min), stopped there. As you can see pulling that much amperage really affects the life of the batt, but you're getting excellent performance from these tanks in that time. These cartos are the definition of quality of vape vs. batt life.
King Diamond manual regular-
My average run times using these thus far with a wow carto is 198 minutes. These too were affected by the amperage draw, but the cells in these batts show just how much of an improvement they are over their auto counterparts-
4.08v (as), 4.03v (9 min), 3.99v (18min), 3.96v (27min), 3.94v (36min), 3.90v (45 min), 3.88v (54min), 3.86v (63 min), 3.83v (72min), 3.81v (81 min), 3.78v (90 min), 3.75v (99 min), stopped there knowing the batt was near the end of it's charge.
Stealth XL manual-
Haven't posted the run times and numbers on these yet thanks to the move. Will be getting to that very soon, but for now will give you a small glimpse into those tests. The average run time on a wow carto was 283 minutes. Up 2 minutes from the kd manual, but the led being on the button has taken the advantage of stealth in voltage holding and time over it's brethren away. With the 3.5ml tank got-
4.12v (as), 4.09v (9min), 4.07v (18 min), 4.04v (27min), 4.01v (36min), 3.99v (45min), 3.97v (54min), 3.94v (63min), 3.92v (72min), 3.90v (81min), 3.88v (90min), 3.84v (99 min), 3.82v (108min), 3.80v (117min), 3.77v (126min), 3.74v (135min), stopped there.
My view is if you're going to use these on an analog style batt go for a regular or xl, preferably a king diamond or stealth manual.
Haven't done a full voltage panel on the vgo (brother in law owns said kit), but did do an intial on load test with it. With the 1.5ohm DVCT on it it was at 3.91v under load.
The 5v OMG-
Still owe a full voltage panel on this one as well, hopefully will by the end of next week. This move really has put me in a bind testing wise and truly do apologize to everyone for it. Will be caught up soon promise. Like before with the 510 tank the fully charged load voltage for this was 5.23v (the 510 tank was 5.22v a .01v difference isn't much to speak of). Same issues arose with it that the 510 dual coil had. With certain juices you will still burn them at that high a wattage. Trial and error is needed with this, but a few flavors I can confirm that don't burn at that wattage are Nuport wow, Wow pepp, Gunslinger, Stogie, Aces & 8's, and Peacemaker.
PT-
Here's where I was truly surprised. In the car using V4L's car adapter couldn't get it to fire. No matter what I tried no vapor. On the slim line wall adapter though it did. The voltage was dropped to 4.57v, but that means it had 3 amps of current still at that voltage. Was simply put speechless at that result. Can not stress this enough, do not use the DVCT on a pt via your computer. At the best it won't fire, at worst you will damage something. That is a redonkulous amount of current from a adapter rated at 2.1a.
Last but not least gen 2 kr808's. Used a mix from 3 companies. 6 batts total were tested.
Batt 1- 3.63v on load- wouldn't fire
Batt 2- 3.58v on load- wouldn't fire
Batt 3- 3.61v on load- actually powered the DVCT
Batt 4- 3.54v on load- powered the DVCT
Batt 5- 3.68v on load- wouldn't fire
Batt 6- 3.61v on load- wouldn't fire
So 2 of the 6 could use it, but 4 couldn't. The two that did were from 2 seperate mystery companies. What was odd is that one batt at 3.61v did power it, the other didn't. Wish I could explain the reasons why, but can't.
Can't say how impressive the cartos in these tanks are. Simply put the best dc's I've ever tried. The draw is like that of a wow carto, th and vapor production surpass it, and the flavor is like that of a cool cart. The only gripe I have is the carto can slide out a little too easy on the metal capped tank for my taste. This can be fixed using a slightly thicker o-ring but too thick and it will make it too hard for people to pull out when filling. As for leaking issues, haven't ran into any except on 2 of the 14 refills thus far. As Snow sir's video showed the boxes for these have the V4L logo on them. These tanks are truly worthy of it.
On the 3.5ml tank the carto inside it read out at 1.6ohms, the one on the 6ml tank was 1.6ohms. Just so everyone knows the carto in the tank is replaceable. Don't know when V4L will carry them, but have no doubt they will. Hoping for a non punched carto version of these in the future, they're simply that good. Back to the topic at hand though. These are dual coil cartos, what that means is there are two coils inside each cartomizer instead of the standard one. This has it's advantages and disadvantages, by being two medium to high resistance coils (a 1.5ohm dc is actually two 3.0ohm coils, a 2.0ohm dc is two 4.0ohm coils, etc) means the risk of burning the polyfill is reduced, and you get the vapor production and th potential of a low resistance carto along with the taste benefits of a higher resistance carto. The two major disadvantages are you're pulling twice as many amps as you would on a 3.0ohm single coil putting strain on the batt, and with 5v+ you can burn juice that isn't suitable for higher wattage.
I would have never put a dual coil or low resistance carto on any batt lower than 650mah with at least a 4c rating (meaning it could 2.6 amps before failure) in fear of hurting the cell. Mentioned many times before the theory that the cells in the king diamond and stealth batts have to be high drains to put out the voltage they do along with their ability to hold that voltage with use. These tanks confirmed it. I tried them on not only every batt V4L sells, but also on some unmentionable gen 2 batts from 3 top companies to see how they would handle. Results were and weren't expected.
Vapor King line batts-
Only have a few of these left in my possesion, a very special regular manual, 2 shorties, 1 auto xl, and one manual xl. Could not for the life of me get this tank to fire on any of them. When chatting with Snow sir earlier (will not root for your team sir in order not to jinx them) asked him to test them on a non-king diamond/stealth batt to confirm my findings, and he too couldn't get them to fire. Not sure if the newsest ones will or won't of the VK line because honestly haven't ordered any since the king diamond v2's were released.
King diamond v2 auto shorty-
With the 1.5ohm 3.5ml carto (used this one for every test because it was the lower of the two that arrived) voltage at start was 3.91v on load. The average run time one these using wow cartos was 121 minutes. Now to see what a difference lower ohms make with chain vaping-
3.92v (as), 3.87v (9min), 3.84v (18min), 3.80v (27min), 3.72v (36min), stopped there.
That's right, 36 minutes of use. Do not suggest using these on a shorty, the fact they can even run them is simply amazing. You won't get much life, but they are at least good in a pinch.
Stealth XL v2 auto-
266 minutes is my average with wow 2.3ohm cartos. That is no longer the case with these-
4.02v (as), 3.98v (9 min), 3.95v (18min), 3.92v (27min), 3.90v (36min), 3.88v (45min), 3.86v (54 min), 3.84v (63min), 3.82v (72 min), 3.81v (81min), 3.80v (90 min), 3.77v (99min), 3.75v (108min), 3.72v (117 min), stopped there. As you can see pulling that much amperage really affects the life of the batt, but you're getting excellent performance from these tanks in that time. These cartos are the definition of quality of vape vs. batt life.
King Diamond manual regular-
My average run times using these thus far with a wow carto is 198 minutes. These too were affected by the amperage draw, but the cells in these batts show just how much of an improvement they are over their auto counterparts-
4.08v (as), 4.03v (9 min), 3.99v (18min), 3.96v (27min), 3.94v (36min), 3.90v (45 min), 3.88v (54min), 3.86v (63 min), 3.83v (72min), 3.81v (81 min), 3.78v (90 min), 3.75v (99 min), stopped there knowing the batt was near the end of it's charge.
Stealth XL manual-
Haven't posted the run times and numbers on these yet thanks to the move. Will be getting to that very soon, but for now will give you a small glimpse into those tests. The average run time on a wow carto was 283 minutes. Up 2 minutes from the kd manual, but the led being on the button has taken the advantage of stealth in voltage holding and time over it's brethren away. With the 3.5ml tank got-
4.12v (as), 4.09v (9min), 4.07v (18 min), 4.04v (27min), 4.01v (36min), 3.99v (45min), 3.97v (54min), 3.94v (63min), 3.92v (72min), 3.90v (81min), 3.88v (90min), 3.84v (99 min), 3.82v (108min), 3.80v (117min), 3.77v (126min), 3.74v (135min), stopped there.
My view is if you're going to use these on an analog style batt go for a regular or xl, preferably a king diamond or stealth manual.
Haven't done a full voltage panel on the vgo (brother in law owns said kit), but did do an intial on load test with it. With the 1.5ohm DVCT on it it was at 3.91v under load.
The 5v OMG-
Still owe a full voltage panel on this one as well, hopefully will by the end of next week. This move really has put me in a bind testing wise and truly do apologize to everyone for it. Will be caught up soon promise. Like before with the 510 tank the fully charged load voltage for this was 5.23v (the 510 tank was 5.22v a .01v difference isn't much to speak of). Same issues arose with it that the 510 dual coil had. With certain juices you will still burn them at that high a wattage. Trial and error is needed with this, but a few flavors I can confirm that don't burn at that wattage are Nuport wow, Wow pepp, Gunslinger, Stogie, Aces & 8's, and Peacemaker.
PT-
Here's where I was truly surprised. In the car using V4L's car adapter couldn't get it to fire. No matter what I tried no vapor. On the slim line wall adapter though it did. The voltage was dropped to 4.57v, but that means it had 3 amps of current still at that voltage. Was simply put speechless at that result. Can not stress this enough, do not use the DVCT on a pt via your computer. At the best it won't fire, at worst you will damage something. That is a redonkulous amount of current from a adapter rated at 2.1a.
Last but not least gen 2 kr808's. Used a mix from 3 companies. 6 batts total were tested.
Batt 1- 3.63v on load- wouldn't fire
Batt 2- 3.58v on load- wouldn't fire
Batt 3- 3.61v on load- actually powered the DVCT
Batt 4- 3.54v on load- powered the DVCT
Batt 5- 3.68v on load- wouldn't fire
Batt 6- 3.61v on load- wouldn't fire
So 2 of the 6 could use it, but 4 couldn't. The two that did were from 2 seperate mystery companies. What was odd is that one batt at 3.61v did power it, the other didn't. Wish I could explain the reasons why, but can't.
Can't say how impressive the cartos in these tanks are. Simply put the best dc's I've ever tried. The draw is like that of a wow carto, th and vapor production surpass it, and the flavor is like that of a cool cart. The only gripe I have is the carto can slide out a little too easy on the metal capped tank for my taste. This can be fixed using a slightly thicker o-ring but too thick and it will make it too hard for people to pull out when filling. As for leaking issues, haven't ran into any except on 2 of the 14 refills thus far. As Snow sir's video showed the boxes for these have the V4L logo on them. These tanks are truly worthy of it.
