Changing atomizer resistance, what would you expect to change?

[Rev Narwhal]

I normally use an eGo style battery (eGo-T variable voltage (unregulated 3.6V to 4.15V), or an eGo constant 3.7V), with ViVi tanks. I've only ever used the 1.8ohm atomizer heads, but have switched out to a 2.4ohm in one of my tanks. What would you expect to see change, and how much (battery life, flavor, vapor production, ejuice darkening)?

Thanks for your feedback

 

[Adrena]

the over all heating of the vape. 1.0's being warmer 3.0 cooler..
Closer to the 1.0 more vapor.to the 3.0 end more throat hit.
add more volt to either and you can reach a point of darkening the juice.
Juice pg and vg amounts need to the add into the equation as well.
for me I'm at 4.0v 2.4ohm, 70/30-80/20 pg/vg
larger tanks like the vivi nova will darken my juice at the end, set up like this...

 

[Rev Narwhal]

So a higher resistance atomizer will actually heat the eliquid less on a 3.7V battery. Stupid me, for some reason I assumed the opposite and now I can see why that was silly. Lower resistance would mean more heat. I think I got it now. So, if I was enjoying the vapor and throat hit from the 1.8ohms on a 3.7V battery, I will likely enjoy the flavor and vapor production less on a 2.4ohm, and will likely not enjoy the 2.8ohm at all. So far, that's what's playing out with the 2.4ohm. I am not as satisfied with it as I am with the 1.8ohm, but I have to be fair to it and run two tanks to make sure it is broken in nice and good.

 

[Rev Narwhal]

Thinking though, of battery charge duration it would seem that a higher resistance atomizer would yield more hits... even if they were much less fun.

 

[rdsok]

Another bit of info... a PV ( such as one of the eGo's you mentioned ) is not called variable voltage unless you can set the voltage output... Also, a VV will be regulated to the voltage you have it set for. So the eGo-T you mentioned earlier ( unless you can set the voltage output ) is not considered variable... It simply drops the voltage output as you use up the battery capacity.

Joyetech makes a line of VV eGo's they call the Twist and Vision has a line they call the Spinner... the output voltage will remain where you have set them until the battery reaches a certain level and needs recharged.

 

[Rev Narwhal]

Thanks rdsok... I've seen those, but there are few that also offer USB passthrough. That eGo-T is considered an unregulated variable voltage (ranging from 4.1 to 3.6, depending on the charge) or can be set to a constant 3.3.

 

[rdsok]

Thanks rdsok... I've seen those, but there are few that also offer USB passthrough. That eGo-T is considered an unregulated variable voltage (ranging from 4.1 to 3.6, depending on the charge) or can be set to a constant 3.3.

I'm saying that is not referred to as variable voltage... it is unregulated yes but it isn't not something you can set a voltage for, you get the voltage the battery has left in it... as the charge drops, the voltage drops.

Just trying to get your terminology correct so others will also know what you are talking/asking about

 

[Adrena]

Sounds like you have your thinking cap on ..

 

[Dieseler]

So a higher resistance atomizer will actually heat the eliquid less on a 3.7V battery. Stupid me, for some reason I assumed the opposite and now I can see why that was silly. Lower resistance would mean more heat. I think I got it now. So, if I was enjoying the vapor and throat hit from the 1.8ohms on a 3.7V battery, I will likely enjoy the flavor and vapor production less on a 2.4ohm, and will likely not enjoy the 2.8ohm at all. So far, that's what's playing out with the 2.4ohm. I am not as satisfied with it as I am with the 1.8ohm, but I have to be fair to it and run two tanks to make sure it is broken in nice and good.

If you apply 3.7 volts to 1.8ohm coil yes more heat than same useing higher res 2.4 coil @ same voltage.

1.8 ohm @3.7v = 7.6 watts and 2.05amps
2.4 ohm @3.7v = 5.7 watts and 1.5 amps

Useing a VW device in RMS mode my sweet spot is 8.5 watts @ 1.8 ohm mesh coil to maximum 2.1 ohm coil on a genesis setup with my DIY e-liquid and you would be quite shocked how much it cost to make 60ml.

In your journey's once you find your sweet spot with your particular e-liquid you will be quite the happy person. ; )
Here is a simple calculator once you think you hit it with your particular e-liquid and know your coil resistance and voltage as you just enter those 2 values and it figures out your amps and watts. If useing a vv or vw device it makes it easier then to dial it in with that type of mod.
Ohm's and Joule's Law Calculator

 

[Dieseler]

the over all heating of the vape. 1.0's being warmer 3.0 cooler..
Closer to the 1.0 more vapor.to the 3.0 end more throat hit.
add more volt to either and you can reach a point of darkening the juice.
Juice pg and vg amounts need to the add into the equation as well.
for me I'm at 4.0v 2.4ohm, 70/30-80/20 pg/vg
larger tanks like the vivi nova will darken my juice at the end, set up like this...

Adrena yup mine will start to darken in my 3.5ml capacity genesis tank after several refills but it only cost 18 cents to fill it each time.
; )

 

[Adrena]

Got the Calculator out on you may as well hand you some homework to think over.

 

[Rev Narwhal]

I'm surprised by this chart. I know that at 3.7V that a 1.8ohm atomizers are more satisfying than 2.4ohm. The chart puts the 2.4 in the butter zone and 1.8 as almost to the red zone.

 

[Adrena]

I'm surprised by this chart. I know that at 3.7V that a 1.8ohm atomizers are more satisfying than 2.4ohm. The chart puts the 2.4 in the butter zone and 1.8 as almost to the red zone.

All that is saying is you like 7.61W for vaping... Allowing you to tweak your sweet spot if you so choose.
Lats say you have a 2.4 carto laying around you just don't want to waste... knowing you like 7 almost 8w you can crank the volt up to 4.2-4v and not toss the carto...
The way you vape you get good batt life on the plus side.
on the negative, you may pop coils faster replacing cartos more often...

There is no wrong answer, just your needs. The chart will let you to fit those need as you see fit. Giving you some play.

 

[AG51]

You gots smarts Hootys

 

[Adrena]

You gots smarts Hootys

Gosh..

 

[Rev Narwhal]

For those someday in the future that stumble upon this thread: It turned out that I didn't like the 2.4ohm resistance with the ViVi Nova on batteries ranging from 3.3, 3.7, and variable voltage between 3.6 and 4.2, with ejuice in the PG/VG ranges between 80/20 and 50/50. Note, that this "opinion" of mine is just that, and is only applicable to the ViVi Nova full sized tank with the batteries I tested and the ejuices I tested. Atomizer resistance perfection will depend on the tank, the batteries you use, the ejuice PG/VG ration (and possibly the "brand"), as well as other factors that involve quantum theory. It takes tinkering.