variable voltage and wattage

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godfatherI

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wattage is the amount of power going to the coil (the amount of "work") while voltage is the amount of potential energy that could be released. Setting the voltage will only tell you how much energy would be released. The amount of "work" done, i.e. vaporizing, would depend on the ohms. Since vaporizing is the end result you're shooting for, it is easiest to set watts. 6-10 watts sounds right to me for a 1.8 ohm coil. You can figure the voltage needed to get 6-10 watts using an ohms law calc.
 

Katya

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Hi royzle and welcome.

Kanger recommends 5.5-7.5 watts per single coil. However, your 1.8Ω emow is a dual coil atomizer, which means it consists of two 3.6Ω coils configured in parallel. You should, therefore, calculate your wattage based on the 3.6Ω figure to obtain a satisfying results. Always start a bit low and then increase the wattage (or voltage) to your liking. I usually vape my dual coil atties at 4.2-4.6v, or 10-12 watts.

More on the subject:

Disclaimer: This is the most simplistic explanation and is addressed to new vapers or vapers who are happy within the recommended "just right" power zone (4.5-8 watts) and use stock coils.

Ohm's Law as it pertains to vaping is really not that complicated--and it's very useful when you want to know what you're doing.

Voltage and wattage are often misunderstood by new vapers. Wattage is the power (heat, sweet spot) that your PV (battery and atomizer) generates. Wattage = Voltage (of your battery) squared divided by Resistance (Ω) of your atomizer [P=V[SUP]2[/SUP]/R]. If you're not good at math, don't worry, use this easy calculator:

Online Conversion - Ohm's Law Calculator

Of course, if you own a VW (variable wattage) device, you don't really need this calculator because your device will do the math for you.

The wattage you want, especially at the beginning of your vaping career, should be somewhere between 4.5 and 8.5 watts per coil. Anything lower than 4.5 watts may not vaporize your juice properly and will not produce enough warmth and vapor. Anything above 8.5 watts increases the risk of burning the filler in your cartomizers (if you're using them) or dry with your clearomizers.

There are, of course, other variables, like eliquid and JDD (juice delivery devices) that you're using on your batteries. Seven watts on a filler type cartomizer may feel different than the same 7 watts on a fillerless clearomizer or a dripping atomizer. The same is true for different eliquids; tobaccos, chocolate and coffees generally require more wattage (heat), while fruit and other delicate flavors do better with less heat. Everyone's sweet spot is different--those are just very general guidelines.

If you are using dual coil atomizers, things get a bit more confusing. Dual coil atties consist of two coils configured in parallel, which means that a 2.1Ω atty is really two 4.2Ω coils--so you have to calculate your wattage based on the 4.2Ω number--not 2.1Ω--roughly. Dual coil atties require more wattage than singles, but not quite twice as much. They produce more vapor due to increased surface. I usually increase the power (wattage) by ~50% when using dual coils; for example, if I like 6 watts with a single coil atty, I start at 8-9 watts with a dual coil atty. That's just my preference--YMMV. When in doubt--start low and adjust up as needed.

If you are interested in high wattage (and/or sub-ohm)vaping, that's a different conversation altogether--and not my area of expertise. :)

Experiment and you'll find your own bliss in no time!

The chart below is a good guide to safe vaping, even though some think it's a bit conservative.

e-cigarette-volts-ohms-watts.png
 

93gc40

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Voltage -wattage -and amperage, are measurements of the amount and strength of the power you are applying to vaporization. Think of it like a river. (might get these in wrong order) The wire gauge represents the size of the river channel, the volts the depth of the water the watts the amount of water and the amps the speed of the water flow.

The diference between VV and VW control in real term is NONE.. it's just 2 different ways of measuring the same thing. Diference being the parameter being limited. Say you were deciding betwen 2 atomizers 1@ 1.5ohm and 1 @ 2ohm, if you set you MPV to Voltage @ 3.7 volts you feed the 1.5 coil at 8 watts and the 2 coil at about 6, but if you set the mMPV for wattage when set to a8watts you feed 8 watts to any atomizer you install. Also when heated the rtesistace of the coil can change, VW maintains a more stable output to the coil.
 

dice57

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Frak, no matter how good or not ones gear and experience is, it all comes down to dialing it in by taste and vape production. Whether one is going by watts or volts, we all just keep cranking it up till it vapes just right. Some, tend to crank it up till this vapes to hot, and the dial it back to just right. :D Others get upset that it's to hot and figure how to make it not.


Vape long and Prosper.!!!!!
 
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realsis

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I agree, don't worry so much about the "numbers" with a device like a MVP you most likely can't get in a dangerous range. Adjust to what suits you. The MVP won't allow you to go beyond what's safe for its battery so don't worry. It has a cut off. You couldn't go beyond the batteries safe zone even if you tried. So don't so much worry about what numbers your on . Dial it in to what you like. Hope this helps.
 

Katya

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you said it will do the math for me, but the itaste MVP has variable voltage and wattage, which is what I don't get

You can't have one without the other--wattage = voltage squared divided by resistance. You set the wattage desired and attach your atomizer (with given resistance) and your MVP calculates the voltage needed to achieve the wattage requested.

Same thing with voltage. You choose a certain voltage, your resistance is provided by your atomizer, the battery calculates the wattage.

And yeah, like others have said--start low and adjust to your liking. Just remember that dual coil atties need more wattage (or voltage) than the single ones.

Good luck!
 
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