Confused With High Watts

[dr.pepper12]

This may be a really stupid question, but it's been bugging me for a while.

I've seen people saying they vape at 50w or 25 watts etc etc.

But, on all the vape charts I've seen, anything over 8 watts will burn things out.

People say that these high voltages give great flavour.

How does this work!?!

I'm running an aerotank 2.0ohm @ 3.8volts cotton wicks. Anything higher than that burns my juice and cotton Wick.

So how on earth do people vape at those high watts!?

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[Completely Average]

Really low resistance coils.


The mathematical equation to calculate wattage is this:

Voltage * Voltage / Resistance (ohm) = Wattage.

So, in your normal setup using a 1.5ohm coil and a 3.7v battery you get this:

3.7 * 3.7 / 1.5 = 9.12 watts

Now, let's say your subohming. Using the same 3.7v battery with a 0.3 ohm coil.

3.7 * 3.7 / 0.3 = 45.6 watts


There is a reason those vaping charts tend to stop at 1.5ohm coils. Below that you start getting into an entirely different region of power use and the normal chart no longer applies. Subohm setups burn VERY hot, and require a LOT more liquid to keep from cooking the juice.

 

[dr.pepper12]

Ah, yeah, I realise now it was a stupid question!

There was a reason I failed physics!

I had a different thought process which was wrong, hence the stupid question

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[Stosh]

Two things keep the high wattage from instantly burning the juice. One, a lot of air flow to cool the coil. Second, dumping large quantities of juice on the coils - wicks to cool the coil. By using enough juice to keep the coils from ever drying out, the temperature stays a bit lower, and vaporizes what would normally be a flooded topper.

 

[dr.pepper12]

So if I was to fully open my aerotank and crank up the volts, everything would be OK? Lol

Don't want to try it as it's half 12 and I can't be bothered to get out of bed to replace my coil! Lol

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[Stosh]

So if I was to fully open my aerotank and crank up the volts, everything would be OK? Lol

Don't want to try it as it's half 12 and I can't be bothered to get out of bed to replace my coil! Lol

Dump a whole bottle of juice on your coil, and it will stay cool at any wattage....a satisfying vape, maybe...

 

[dr.pepper12]

Ah, that would explain why people squonk then!

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[CloudZ]

Thicker wire and multiple coils in RBA's. That is how insanely high wattage can work well, since these devices can support more and larger coils while wicking much more efficiently than any clearo or carto. 8-10 watts is as high as you will want to go with those, which is what the charts are for.

 

[beckdg]

heat and/or wattage and/or voltage does not equal temperature. there's a lot more to it.

a btu is a measure of heat, yet not a measure of temperature the same as a watt is a measure of output or power.

you can cook and burn nearly anything with a small 5000 BTU grill. but it won't necesarilly keep your house warm.

the same thing is happening with your coils. lower gauge wire produces lower ohms. it also is massive and will not reach the same temperature with the same wattage. though, you're able to spread that heat (at a lower temperature) over a much larger area to atomize much more juice at the same time.

air flow is only a factor once you've reached "acceptable" specs. if you have a low enough gauge wire with enough winds in the coil then apply correct airflow, that airflow is able to capture the atomized juice particles and suspend them to be lifted to your mouth or lungs. there's a bit of evaporative cooling going on there, but the real deal is that those particles are being swept away as soon as they're atomized and allowing a denser vape than if the airflow was restricted. larger surface area means more airflow necessary to capture all the rogue particles that are at a temperature conducive to atomized evaporation. otherwise they just land back on the coil and wick and heat back up over and over again. hence, getting cooked and/or changing flavor or simply resulting in reduced vapor output.

also, almost all vapers vaping over 30 watts are vaping at under 4.2 volts. coil winds with such low ohms aren't varible voltage friendly and incur an instant voltage drop to any battery once the button is pushed to close the circuit. though, there are now a few mods variable that are capable of over 30 watts.