A little sub ohm help/clarification

[Bowtecha]

Just got my sigelli 20 and built up a dual coil rig on my trident clone she's sitting at about .8 ohms is that considered subohming?

i set her at about 18.5 watts and she's RIPPING

any tips on sub ohm vaping?

i can only get down to about .6 ohms with my sigelli

Do you get burnt taste if you run it high watts like that

 

[Credo]

Yes, anything below 1 Ohms is sub-ohm.

I'm assuming the Segeli 20 is a fully regulated mod, so you should be good to go on safety. Just make sure you're running a quality High Drain battery (IMR, or some of the high C rated hybrids).

With a regulated mod, going below 1 Ohm probably isn't necessary, in fact it might waste some heat 'bucking' the voltage down a bit to get it 'down' to 18.5 watts until the battery drains a bit, but it's nice to be able to do it

Example:
With a fresh battery on an unregulated mod...
A 0.6 Ohm atty would do around 29 watts.

So, a regulated mod is either going to go into a bypass mode and give you 29 watts, or it's going to buck voltage down to 3.3v to get it down to 18.5 watts.

If it's 'bucking' that much, then you're possibly wasting some energy in a heat sink (if it's fully DC-DC and not pulse modulated).

With that in mind...check the manual of your PV. See if it 'bucks', or just goes into bypass mode.
If it 'bucks', then building sub-ohm coils is pretty needless and may even shorten your vape time between battery charges.

If it goes into bypass mode, then going sub-ohm can help you get more than 20 watts out of the PV (if it doesn't back off for amp limits of some type).

 

[Dusif]

I would say get a sony battery just to be safe... It
Never hurt anyone to be extra safe

Sony
us18650vtc3 1600mah
Us18650vtc4 2100mah
Us18650vtc5 2600mah

All are 30amp batteries and can handle subohm very well


__________________________
M16 helio 0,29
Galileo aqua 0,8
Bolt carto tank
Vamo vivi/protank
Kts+ igo-w 0,7

 

[Bowtecha]

I've got some 18650 2600 mah batteries (generic green ones)

 

[Bowtecha]

If I'm gonna use a rda I want to be blowing massive clouds so that's kinda what I'm chasing

For my everyday chain vape I use my russian 91 @ 8-9 watts

 

[Ryedan]

I've got some 18650 2600 mah batteries (generic green ones)

Is there anything at all printed on those batteries?

 

[Credo]

If I'm gonna use a rda I want to be blowing massive clouds so that's kinda what I'm chasing

For my everyday chain vape I use my russian 91 @ 8-9 watts

I hear ya.

If 18.5 watts is your actual power target...you might get a little longer vape time off a battery charge, and a cooler PV by shooting for something between 0.8 and 1 Ohms. Of course that can depend on where your battery holds voltage best...I based my calculations with a nominal target voltage of 3.7v to get 18.5v.

I'm not sure how that mod deals with sub-ohm stuff, that 0.6 Ohm build is either going to get bucked down to the 18.5 watts you set, or it'll give you 29 unregulated watts, or it'll back off to max of 20 (for amperage safety limits, in which case you'll loose some efficiency/battery life as it bucks voltage).

That's why I say look into specifics on how your mod does the sub-ohm stuff. If the mod has a hard limit of 20 watts, or it bucks to your setting, then going with higher resistance builds, from say 0.8 Ohms and up, may well give a little better battery life, a cooler PV, and more 'control' in the event you want to hit the coils at lower power settings. For the 8 watt rigs, definitely do builds from around 1.7 Ohms and up (around 2 Ohms is a nice number).

 

[Dusif]

I've got some 18650 2600 mah batteries (generic green ones)

Just because they are green it doesnt mean they are safe to subohm with... Get some batteries that you KNOW is the right ones


__________________________
M16 helio 0,29
Galileo aqua 0,8
Bolt carto tank
Vamo vivi/protank
Kts+ igo-w 0,7

 

[coldgin96]

Just got my sigelli 20 and built up a dual coil rig on my trident clone she's sitting at about .8 ohms is that considered subohming?

i set her at about 18.5 watts and she's RIPPING

any tips on sub ohm vaping?

i can only get down to about .6 ohms with my sigelli

Do you get burnt taste if you run it high watts like that

The only tip I have is don't do it in public...

Happy Easter and 420!

 

[Bowtecha]

I hear ya.

If 18.5 watts is your actual power target...you might get a little longer vape time off a battery charge, and a cooler PV by shooting for something between 0.8 and 1 Ohms. Of course that can depend on where your battery holds voltage best...I based my calculations with a nominal target voltage of 3.7v to get 18.5v.
I'm not sure how that mod deals with sub-ohm stuff, that 0.6 Ohm build is either going to get bucked down to the 18.5 watts you set, or it'll give you 29 unregulated watts, or it'll back off to max of 20 (for amperage safety limits, in which case you'll loose some efficiency/battery life as it bucks voltage).

That's why I say look into specifics on how your mod does the sub-ohm stuff. If the mod has a hard limit of 20 watts, or it bucks to your setting, then going with higher resistance builds, from say 0.8 Ohms and up, may well give a little better battery life, a cooler PV, and more 'control' in the event you want to hit the coils at lower power settings. For the 8 watt rigs, definitely do builds from around 1.7 Ohms and up (around 2 Ohms is a nice number).

That's what it's set at right now is .8 ohms dual coil

 

[CShaver]

When sub-ohming, safety has to be your numbe 1 goal. Forget the clouds for now.

I have two Sony VTC 4 and sub ohm all day on my Nemesis with my Kayfun. The VTC 4 will handle almost any build you throw at it. Right now I'm running a .6/.7 build in the Kayfun with great results.

If you want to sub-ohm correctly, get great batteries and a mech.

Here's the link to the Sony VTC 4 VTC4

Here's the link to the VTC 5 if you want them. VTC5

Here's a link to the Nemesis clone I bought in-case you want to try it. (the one I bought was the 2-tone but they don't have it anymore. Guaranteed HCigar which is the best Nemesis clone available in my opinion) Nemesis

Here's a link to a great charger. Nitecore i4

The batteries are the most important part of sub-ohm safety, IMO. You should never skimp on a battery or it's charger.

 

[edyle]

Just got my sigelli 20 and built up a dual coil rig on my trident clone she's sitting at about .8 ohms is that considered subohming?

i set her at about 18.5 watts and she's RIPPING

any tips on sub ohm vaping?

i can only get down to about .6 ohms with my sigelli

Do you get burnt taste if you run it high watts like that

Yes 0.8 ohm is below 1 ohm = sub ohm.

The point of a 20 watt regulated mod is you won't need to use low ohms to get high power.

As long as you keep your coil wet enough you shouldn't get burn.

 

[jimbill]

Yes you are using a sub ohm coil the Sigelei-20W only has a boost converter without a step down converter which sucks but i love mine at 0.7 ohms at 18 watts.

 

[Bowtecha]

Yes 0.8 ohm is below 1 ohm = sub ohm.

The point of a 20 watt regulated mod is you won't need to use low ohms to get high power.

As long as you keep your coil wet enough you shouldn't get burn.

So in theory I could run a 1.5 ohm coil at 20 watts and still get the same performance?

What exactly is the purpose of running sub ohm coils than?

 

[Bowtecha]

Is there anything at all printed on those batteries?

Yes, 3.7v as well as 2600 mah that's all that's printed on them

 

[jimbill]

I use my Sigelei-20W for sub ohming but i'm using 28 gauge kanthal and it brings the flavor out for me and i don't chase clouds either i just like higher wattage.

 

[jimbill]

Yes, 3.7v as well as 2600 mah that's all that's printed on them

I would get some better batteries if i were you here are some good 30 amp EH batteries just a rebranded sony vtc3.
EH IMR 18650, 30amp, 1600mAh, Flat Top

 

[edyle]

So in theory I could run a 1.5 ohm coil at 20 watts and still get the same performance?

What exactly is the purpose of running sub ohm coils than?

The purpose of running a sub ohm coil is to be able to get high power on a simple mech mod instead of buying a mod that ups the voltage.

To get 20 watts on a 3.7 volt battery you will need 3.7 x 3.7 / 20 = 0.68 ohms.

 

[Ryedan]

Yes, 3.7v as well as 2600 mah that's all that's printed on them

The problem with this is you don't know the manufacturer, the model or the battery chemistry. I have a couple of generic batteries I got a couple of years back with a kit that say 'IMR' on them. If it doesn't say that on yours I would assume they are ICR to be safe.

You could be seeing as much as 6 - 7 amp draw at low battery voltage with your setup. If they are ICR that could get nasty.

If it were me, I would not use those batteries for this application.

You can get Sony VCT4 at Illumination Supply for $8.50. VTC5 are $10. They have more run time at 2600 mAh instead of 2100. Both of these are flat top.

 

[sawtoothscream]

If I had a regulated device I would run a 1-1.5ohm set up. I built a 1.5ohm twisted 32ga coil for my igo l and threw it on my zmax. at 6v it hit like a champ and comes close to the mechs performance. Just seems to drain batteries faster then my mechs do. my mechs run at .5-.7