No go because of the air or the 2nd coil? Urq, you gotta take a pic. How does 1 hole 2 coils work?
Scubagen Mods
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no go on the air. if i unhook one coil, cover one hole my resistance is at 2 ohms, then if i connect em, resistance drops to 1.1. i have a hole for each coil but draw is extremely loose
If you like the vapor production with 1 coil then you need to adjust your coil wraps to match the resistance of that single wrap. It goes down to 1.1 ohm, because ohms are divided by the number of coils, so in order to get a 2 ohm dual coil, you have wrap two 4 ohm coils. That's the first thing I would try.
Maybe your battery can't handle the more than 3.5 amp draw with the dual coils. Try a larger battery with a higher C rating. 1.1 ohms is pretty tough on a battery, or put more coils to raise the resistance.
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Yes to that, and I don't think provari will fire 1.1Ω either. The coil on the left I'd say is the one you are using and it is black at the top and silvery down low, the one on the right is a little like that. Also if that tape is covering a hole, it's way too high. The hole you have there looks to be too high too, it is at a couple of different angles but it seems to be at the halfway point between SS pieces. That ought to be lower to catch all the vapor as the air passes through the chamber. Here I've got it quite low, you don't want to have it at the bottom that condesate constantly leaks out, but pretty low:
You need more coils to make each 4ohms individually so the two parallel will be 2ohms, like 8 or 9 wraps on each.
You can get them in there urq, they don't have to be 1mm apart, just not touching each other. With more coil it spreads the heat around, I wouldn't try that logic with 3 wraps as it would be a hot spot and never wick enough.
So i was reading through the zenesis thread and read what zen said aout dual coils. I didnt like what i read. Im gonna re mod the top for one coil only. It vapes bad ... that way too.
Quote from zen.
" NEVER EVER EVER will I make a dual coil version...
Dual Coils are DANGEROUS beyond all belief, and even DC cartos a disaster waiting to happen.
I feel this is one area of safety has has not been adequately addressed, and in many ways I believe it may be the root cause of the increasing number of battery explosion accidents.
I have seen posts about Battery Safety and Tube Mod safety, but a large contributing factor which will rapidly compound the issue is "Load" safety.
A Little history which helps to demonstrate my point:
A little over 15 months ago, the introduction ofLow Resistance cartomizers and atomizers occurred, and with that introduction, eCigs became a LOT less safe. Suddenly the old reliable eGos and 510s started experiencing failures that were not common before the intoduction of lower resistance loads... the PVs failed because the load was too great, causing the circuitry in these PVs to fail. These failures protected the users, in many cases, against their will.
The reason for the failure is because the Load Resistance dictates how much current will be delivered to atomizer/cartomizer.
This has driven many eCig users away from electronic and regulated eCigs into the realm of mechanical Mods with batteries that will deliver the current needed to utilize these lower resistance loads. As we all know, a single battery PV with an LR load is relatively safe, but the quest for higher performance has led us down a path into areas that are far more disconcerting.
A little less than a year ago, Dual Coil cartomizers appeared on the scene and with them, an entirely new series of safety issues. These loads not ONLY have a low resistance, but they have the capacity to sink a HUGE amount of current into them without failing. This is because each coil of the load has the capacity to handle DOUBLE the voltage, or more, than a single coil of the same aggregate resistance. In other words, a 1.5 Ohm single coil carto handles far less power than a 1.5 Ohm Dual coil, due to the dual coil have TWO 3 Ohm coils in parallel....
To a battery with a low current delivery capability, A Dual Coil Carto represents a HOSTILE load, attempting to pull far more current from the battery thanitcan safely deliver.
These new cartomizers have taken the vaping community by a storm. Suddenly, the Good Old Standard, the ProVari is sending error messages to it's users, and they have demanded a Higher Current delivery version... The PV is PROTECTING itself from this hostile load, and the end users are saying "NO WAY... I need more current"
This has driven even MORE members of the vaping community to the realm of mechanical PVs, but now with stacked batteries because these Cartomizers perform better at these higher voltages...
And the most likely battery to stack in a metal tube designed for an 18650?
Yep... the readilly available, and potentially lethal 16340 (Aka CR123a). Unfortunately there are a variety of Low C versions of these batteries on the market at bargain basement prices.
BOOM
I believe that we have only seen the tip of the iceberg with this issue, and the warnings issued thatI have seen have fail to mention that a battery, in all likelihood WILL NOT fail unless there is a load attached to it, and the size of that load can really matter.
I believe that the proliferation of Dual coil, and now Triple coil cartos is the tipping point that is going to set off an epidemic of these devastating failures.As the size of the load increases, the danger increases exponentially! The same is true for dual coils in a Genesis Atty
It's true that cheap batteries stacked in an unvented PV is a recipe for disaster... but the risk increases by a huge margin once the hostile load of a dual coil load is introduced to the equation.
It's true that single cell and High C batteries are much safer... but the introduction of a second coil is flirting with disaster"
Makes a lot of sense
" NEVER EVER EVER will I make a dual coil version...
Dual Coils are DANGEROUS beyond all belief, and even DC cartos a disaster waiting to happen.
I feel this is one area of safety has has not been adequately addressed, and in many ways I believe it may be the root cause of the increasing number of battery explosion accidents.
I have seen posts about Battery Safety and Tube Mod safety, but a large contributing factor which will rapidly compound the issue is "Load" safety.
A Little history which helps to demonstrate my point:
A little over 15 months ago, the introduction ofLow Resistance cartomizers and atomizers occurred, and with that introduction, eCigs became a LOT less safe. Suddenly the old reliable eGos and 510s started experiencing failures that were not common before the intoduction of lower resistance loads... the PVs failed because the load was too great, causing the circuitry in these PVs to fail. These failures protected the users, in many cases, against their will.
The reason for the failure is because the Load Resistance dictates how much current will be delivered to atomizer/cartomizer.
This has driven many eCig users away from electronic and regulated eCigs into the realm of mechanical Mods with batteries that will deliver the current needed to utilize these lower resistance loads. As we all know, a single battery PV with an LR load is relatively safe, but the quest for higher performance has led us down a path into areas that are far more disconcerting.
A little less than a year ago, Dual Coil cartomizers appeared on the scene and with them, an entirely new series of safety issues. These loads not ONLY have a low resistance, but they have the capacity to sink a HUGE amount of current into them without failing. This is because each coil of the load has the capacity to handle DOUBLE the voltage, or more, than a single coil of the same aggregate resistance. In other words, a 1.5 Ohm single coil carto handles far less power than a 1.5 Ohm Dual coil, due to the dual coil have TWO 3 Ohm coils in parallel....
To a battery with a low current delivery capability, A Dual Coil Carto represents a HOSTILE load, attempting to pull far more current from the battery thanitcan safely deliver.
These new cartomizers have taken the vaping community by a storm. Suddenly, the Good Old Standard, the ProVari is sending error messages to it's users, and they have demanded a Higher Current delivery version... The PV is PROTECTING itself from this hostile load, and the end users are saying "NO WAY... I need more current"
This has driven even MORE members of the vaping community to the realm of mechanical PVs, but now with stacked batteries because these Cartomizers perform better at these higher voltages...
And the most likely battery to stack in a metal tube designed for an 18650?
Yep... the readilly available, and potentially lethal 16340 (Aka CR123a). Unfortunately there are a variety of Low C versions of these batteries on the market at bargain basement prices.
BOOM
I believe that we have only seen the tip of the iceberg with this issue, and the warnings issued thatI have seen have fail to mention that a battery, in all likelihood WILL NOT fail unless there is a load attached to it, and the size of that load can really matter.
I believe that the proliferation of Dual coil, and now Triple coil cartos is the tipping point that is going to set off an epidemic of these devastating failures.As the size of the load increases, the danger increases exponentially! The same is true for dual coils in a Genesis Atty
It's true that cheap batteries stacked in an unvented PV is a recipe for disaster... but the risk increases by a huge margin once the hostile load of a dual coil load is introduced to the equation.
It's true that single cell and High C batteries are much safer... but the introduction of a second coil is flirting with disaster"
Makes a lot of sense
Welp, not ever going to build a dual coil now. Thanks for the info! This should be more widely known.
I am posting update to Ghost protocol Co-Op in Scubabatdan related threads just to maximize exposure so no one gets left out.
Okay as of today, I have the following people signed up for Co-Op.
I your name is not here and you still wish to participate PLEASE send me another pm, sorry.
KenG
muddstar
schaedj
bradlyb
westamyx
dl12007
mianker
cos
rusty272
Smacker
jimho
pnc81498
Teach
Extol
debb
prodatype
TMan
badkarmaiii
banjar
Harley
jamesd1628
Jajasonvich
Shead
Merwin
MikeE3
ED-209
AmnNate
Killjoy1
Vtwin
par292
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Brazilleon
jmarkus
MikeE3
AmnNate
Okay as of today, I have the following people signed up for Co-Op.
I your name is not here and you still wish to participate PLEASE send me another pm, sorry.
KenG
muddstar
schaedj
bradlyb
westamyx
dl12007
mianker
cos
rusty272
Smacker
jimho
pnc81498
Teach
Extol
debb
prodatype
TMan
badkarmaiii
banjar
Harley
jamesd1628
Jajasonvich
Shead
Merwin
MikeE3
ED-209
AmnNate
Killjoy1
Vtwin
par292
Spiffy11
Brazilleon
jmarkus
MikeE3
AmnNate
While I would generally agree with Zen's point, it's a matter of what the end resistance will be. Two coils 4Ω each the battery sees as 2Ω. With a rebuildable, it is the user's responsibility to keep it safe.
I agree, the problem is that from the questions asked on the forum you can see that many are doing this with no knowledge of the consequences. I have seen so many saying their sweet spot is 1.1 to 1.5 ohms and that is getting at dangerous levels if you start raising the volts. Even with one battery you are approaching its limits. So many people are confusing TH with heat. Just plain VG gives a hell of a TH if you get it hot enough. When I see 2 or 3 wrap coils it makes me cringe.
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