High Voltage vs. Low resistance

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Scorched

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Hey guys,

I have been menaing to ask this question for awhile I guess because I have not really seen a solid answer to it while reading about on the forums. The question I ask is:

What is the difference between vaping a LR atomizer on a 3.7v device versus vaping a HV atomizer on a 6v device? Essentially you are vaping these both at the same watts or amps. So why would one be different or better than the other?

Just so you know, I have not bothered to try an IKV HV atomizer quite yet as I have been fully satisfied with the LR series.

Discuss :)
 

Switched

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Ahhhh Scorched you bring up an interesting topic. There shouldn't be any, but the truth of the matter is yes. Let me explain...

A LR atty (1.5Ohm) at 3.7V requires 2.46A or 2.5 to adequately supply the atty. This will produce 9.1W. This in turn is providing the vaper uses a battery capable of at least a 3A continuous discharge, which most folks do not utilize. The atty is not performing at 100% efficiency and is not delivering the theoretical wattage (W). What is noticed is that the battery under load is supplying 3.2-3.3V which represents roughly 7.21W.

OTOH a 2.5Ohm atty (suitable for 5V vaping) requires 2A to adequately supply the atty, therefore well within reach of most batteries. This will produce 11.1W. A slight increase in heat, and thus vapour production. The latter under load is supplying 4.5V which represents 9W. The theoretical discharge of a LR at 3.7V.

This chart explains what is happening...
chart.jpg


High drain batteries (Li-Mn or IMR) are required to use with LR attys. They can adequately support the current drain on the battery and the batt itself does not sag as compared with LI Ions under load, not to mention they are safer chemistry.

OTOH where LI Ions are capable of delivering the necessary current (above 16340), longevity may be a preferable option.

I hope this answers your question and has offered you some insight :)
 

aur1640

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Scorched, IMHO, even though I don't have the data and electronic knowledge of Switched, I simply think that Isaac's HV atomizers are the LR of the HV realm/range. There is a qualitative difference in warmth of the vapor. The flavor of the juice is truly enhanced. You get to taste more stuff from e liquid you can't get from LR at 3.7 volts. I've toyed with LR 510s, 306s and 801s. I gotta admit, you get more flavor and a better vapor with LR at 3.7V right off the bat. However, once you crank up the voltage a tad and use Isaac's HV atomizers, a new world of vaping opens up to you. At first I thought, why HV, why all the hype!? Now, I'm totally convinced that vaping is far superior to smoking analogs bar none, hands down.
 

Switched

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Scorched, IMHO, even though I don't have the data and electronic knowledge of Switched, I simply think that Isaac's HV atomizers are the LR of the HV realm/range. There is a qualitative difference in warmth of the vapor. The flavor of the juice is truly enhanced. You get to taste more stuff from e liquid you can't get from LR at 3.7 volts. I've toyed with LR 510s, 306s and 801s. I gotta admit, you get more flavor and a better vapor with LR at 3.7V right off the bat. However, once you crank up the voltage a tad and use Isaac's HV atomizers, a new world of vaping opens up to you. At first I thought, why HV, why all the hype!? Now, I'm totally convinced that vaping is far superior to smoking analogs bar none, hands down.

Just like aur1640, I realised how HV vaping opens up a new vaping dimension! I long believed that LR atties @ 3.7v could compare with HV vaping, it doesn't. LR atties @ 3.7v is a great combo but HV is heaven! (my answer is based on experience not technical knowledge :unsure:).

... as I. OTOH I have provided some tech info to remove subjectivity. Wrt IKV attys, there is more going under the hood than just Ohms. Unfortunately I am not at liberty to discuss it. Thre was a side by side conducted using the 1.5 Cisco 306 LR and the2.0 IKV 306 LR. With the exception of heat - which is to be expected. The flavour and vapour far exceeded the Cisco. Not my opinion someone else. So in fairness to all, it all boils down to personal preference. I shoot for 7W.
 

Scorched

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So what I can grasp from this is that a LR atomizer with a 3.7v battery draws more current while supplying less watts? While a HV atomizer draws less current and supplies more watts?

So essentially the HV atomizer works more efficently while drawing less power and creating more heat.

To me it seems like a 2.0ohms atomizer with a 3.7v(4.2v) battery is on the verge of being too hot, where any more heat would cause the liquid to taste burnt ect. Why is this not the case at higher watts?
 

atavanhalen

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To me it seems like a 2.0ohms atomizer with a 3.7v(4.2v) battery is on the verge of being too hot, where any more heat would cause the liquid to taste burnt ect. Why is this not the case at higher watts?

It is the case with certain liquids. I have went back and forth from LV to HV and have found that certain liquids just do not hold up to higher voltages even with a higher resistance atomizer. I am sure that there are plenty of juices out there that do hold up but my favorite liquids at lv do not hold up as well at hv and my favorite hv liquids do not taste the same at lv. So obviously I just stick to the liquids that work at specific voltages. Just my opinion and what works for me.
 

hairball

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It is the case with certain liquids. I have went back and forth from LV to HV and have found that certain liquids just do not hold up to higher voltages even with a higher resistance atomizer. I am sure that there are plenty of juices out there that do hold up but my favorite liquids at lv do not hold up as well at hv and my favorite hv liquids do not taste the same at lv. So obviously I just stick to the liquids that work at specific voltages. Just my opinion and what works for me.

I agree with this statement. It's all about your juice and the taste. Applewood by FSUSA is a juice that I love on a LR atty at 3.7v but on a HV atty at 6v...it's terrible...loss of flavor and tastes burnt. On the other hand, 555 by the same company is awesome on a HV atty at 6V. Personally, I tried a flavor on both volts to see what happens. This is where VV comes into play for me. I run most juice at around 4.5v on a standard atty/carto...my sweet spot...no burnt flavors.
 

Scorched

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Well thanks for all the help guys. We can always rely on Switcher to give a very intelligent and well thought out responce.
So when the site re-opens I will go ahead and pick up some HV 510 and 306 if there is any in stock and report back to you with the results!

Currently I have 3v batteries for my BB I just have not yet implimented them yet. Now I'm all excited :)
 

Switched

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So what I can grasp from this is that a LR atomizer with a 3.7v battery draws more current while supplying less watts? While a HV atomizer draws less current and supplies more watts?

So essentially the HV atomizer works more efficently while drawing less power and creating more heat.

Not quite everything is relevant here. Prior to VV devices all one had was Ohm's Law Calculator to help match equipment with atomisers, and this is how the chart above was created.

If the goal was to maintain current draw under 2A, (which was my goal in order not to stress batteries and prolonged their life cycles), you simply chose the resistance that would get you there. For example I prefer 7-8W, I can achieve that in many ways. The sweet spot is claimed to be between 6-12W with the median 9W. 9W would be the upper reaches for me. That being said some folks prefer reckless and do vape at 12W. The rice to pay, dependent on the batteries was battery and atty life cycles. Many still vape 6V with a std atty (2.2Ohm) which renders 16W unloaded and 13.4 loaded, still way to hot IMO. Now just move that slightly over to 2.5Ohm and you get 14.4W and 12.1 unloaded and loaded respectively. However there is a caveat. The drain on the battery is above 2A and unless you are using IMR batts, not a good thing. IMO that would be the minimal resistance an atty should have to be vaped @ 6V with an avg loaded voltage of 5.5V. A better choice would be a 3Ohm atty as all falls within specs with regards to durability and performance.

I use 3.5 for 6V and 2.5-3 Ohm for 5V because it puts me where I prefer to vape, 7-8 watts. I also use 5.2 at 7 volts, because in all honesty the 3.5s would pop at that voltage. 7V has since become less used in recent times.

I hope this clarifies where I was going with this. It is not complicated after using the chart for a while. Now with the VV devices you can fine tune for the liquid you are vaping, while keeping in mind the attys being used. This should prevent burning of the liquids, and short lived attys due to excessive voltages being applied to them.

Now that mumbo jumbo was in direct relation to voltages and resistance. You can further fine tune your vaping experience with the type of atty you use (all at std resistance):
  • 801 = cooler vape, great flavour, great vapour, mild TH;
  • 510 = warmer vape, good flavour, good vapour, great TH;
  • 901 = warmer vape, great flavour, great vapour, good TH; and
  • 306 = hot vape, best flavour, great vapour, great TH.

I hope this has been useful to some :)

ETA: My atties of choice is the 510, the 901, the 306 and the 801. The 2 Ohm 801 minis are at the top of the heap although not listed as such here. These of course are all std resistance with the exception of the 306. I do not like the LR 510, never did and never will. This has been my experience as a whole using attys from other sources. All bets are off with the IKV line :)
 
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loft

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Now that mumbo jumbo was in direct relation to voltages and resistance. You can further fine tune your vaping experience with the type of atty you use (all at std resistance):
  • 801 = cooler vape, great flavour, great vapour, mild TH;
  • 510 = warmer vape, good flavour, good vapour, great TH;
  • 901 = warmer vape, great flavour, great vapour, good TH; and
  • 306 = hot vape, best flavour, great vapour, great TH.

I'd have to agree with this. I've been using 306 LR atties on my Reo Grand lately and I've completely stopped using all cartos. I was a fusion lover, too... but now they're in the backup stash.
 
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