different resistance advantages and disadvantegs

[joneric]

Hi all,
I have a quick question that I asked at my local vape shop about different resistances. What exactly is the advantages and disadvantages of higher or lower ohms? I Imagine lower ohms will let your battery last longer because you'll need less volts from your battery, so why even sell coil heads in higher ohms? ( I'm specifically talking about 1.5 1.8 and 2.1 which are the choices I typically get when I buy my replacement coil heads)
thanks!

 

[joneric]

Forgot to clarify the vape shop didn't seem like they really knew what they were talking about

 

[Moxienator]

Plug in some resistances and voltages (4.2 - 3.7v) into an ohm's law calculator and see what happens.

sent via Droid Mini

 

[IMFire3605]

Higher resistance coils will take more volts to get up to wattage but less amps
Lower resistance coils will take less volts to get up to wattage but more amps

If you are using say a fixed voltage device like a basic Ego class at 3.3 or 3.7volts, and we will hit a general ballpark wattage of say 8Watts, you would need a 1.7ohm coil, which will pull 2.16amps at 3.7volts
On an Ego Class Twist battery, to get the same ending Watts with a 2.2ohm coil, you would need to crank the battery output up to 4.2 volts about, and be pulling 1.9amps to achieve the same vape.

Ego class battery generally has about a 2.5 to 3 amp current limit, so higher ohm coils help to achieve staying below that amp limit.

 

[joneric]

Thanks! Okay so now I have to ask what are amps and how does that effect my vaping?

 

[joneric]

Also I'm using the I taste vv/vw so I can adjust both watts or voltage.

 

[IMFire3605]

More amps are the measure of current. More current being pulled, quicker everything starts to heat up. Your iTaste VV has a lithium polymer battery pack which has a really low amp discharge rate, between 2.5 to 5 amps. Keep that battery at that amp limit you heat the battery up which is bad, battery overheats, you boil its chemistry and change it, decreasing its life, maximum output capability, "AND" potentially cause a catostrophic failure (catch fire, pop and vent gases, or the worst just outright explode).

However, with that VV Battery, I'd suggest coil resistance in the range of 1.8 to 2.2ohms, the 1.8 you would get more vape time per charge, the 2.2 would give you better battery longevity (life expectancy before needing replacing), the 2.2ohm coils also being naturally cooler and have more coil wire will last longer being naturally a cooler resistance compared to the 1.8 would burn out quicker having less coil wire and naturally a hotter resistance.

 

[sub4me]

Now that's some great responses and I'm sure a lot of people will find them very useful.

 

[granolaboy]

What are amps, watts, volts and ohms? - HowStuffWorks

 

[joneric]

Yeah that was really informative thanks so much! The one thing the guy at the vape shop said that I wasn't sure about was that the higher resistance would get you more flavor. Does that make any sense?

 

[IMFire3605]

My experience I am talking from only on this ranging from advanced sub-ohm cloud chasing, to sub-ohm flavor chasing, upward to low resistance (1 to 1.5 ohm) rebuilt clearomizers, to standard resistance (1.8 to 2.2 ohm) rebuilt clearomizers, to high resistance (2.5 to 3ohm) clearomizers and cartomizer tanks. The vape shop guy's perspective does have some merit as what ultimately decides best flavor is ending wattage at the coil and air flow. On your iTaste VV a 2.2ohm coil just like a 1.5ohm coil can be adjusted to taste by bumping the voltage or wattage up or down, thus like juices and majority of stuff vape related, "Taste is subjective to the end user". So it is hard to agree or refute something in such ambiguous territory.

In the end, it is the end user's trial and error that determines everything, all I can do is present knowledge, information, and guidance to the best of my ability basing it all off my experience and personal taste preferences . So, to cheaply figure things out to your specific needs, try a 1.5, 1.8, 2.0 or 2.2, and 2.5 ohm coil in your atomizing unit/tank to figure out your taste preference based on flavor, battery longevity between charges, and battery life depending on those resistances and the juices you test with. It becomes a balance of those 3 variables, I prefer 1.5ohm coils in my Kanger T3S and Protank clearomizers when I step back and use them from my more advanced tanks and atomizers, others I know that ran or run the same or equivalent equipment to mine liked 2.2ohm coils at lower watts on the same juice. Cloud chasing I like my .25 sub-ohm dual coil MutationX on my Cartel, flavor chasing 0.55 sub-ohm dual coil Helios on my Cartel, all day vape my 1.5ohm Russian 91% or Expromizer on my IPV V2, sturdy, reliable keep running back up 2.5ohm cartomizer in a carto tank on my SVD or my 1.2 to 1.5ohm Kayfun Clone on a Kylin which is my main fall back unit next to my all day driver the IPV.

 

[rusirius]

Yeah that was really informative thanks so much! The one thing the guy at the vape shop said that I wasn't sure about was that the higher resistance would get you more flavor. Does that make any sense?

It's misleading at best... It's kinda like saying "a swimming pool will get you wetter than a garden hose..." but if you stay 3 feet away from the edge of the pool versus standing under a running hose is that really true? There's LOTS of variables that go into how much "flavor" you get... How much airflow you have, how much wattage you are putting into a given surface area, how much surface area you have, how much wicking ability you have, etc.... and the biggest variable of all... you....

There is no real answer to your question per se.. I can run a 3 ohm coil on a VV/VW device and kick out more clouds and vapor and flavor than a .3 ohm coil on a mech... On the other hand I could do the reverse... it all just depends on the setup and LOTS of different variables....

As for battery life, there is ONE THING and one thing only that determines how much battery life you get out of a single charge... The wattage... which equates to watt hours... which is what drains the capacity of the battery.... The more watt hours you draw from your battery the faster it will drain... You can't relate battery life to just current or just resistance... Only the combination of the two, which is wattage.... More wattage means more vapor, which typically means more flavor... But again many variables go into that as well....