VV vs VW

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Coastal Cowboy

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VV vs VW is basically six of one vs a half dozen of the other. They both do the same thing--increase the amount of energy generated by the coil when you mash the fire button.

These threads come up all of the time, and they usually devolve into a debate between those who spent a lot of money on a VW device and love it, and those who spent a lot of money on a device that doesn't do VW and wonder what the big deal is all about.
 

Coastal Cowboy

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But some batteries (looking at the Innokin iTaste 3) have both VV and VW options. I understand that VV will give a different experience with the taste of the liquid, but does the WW do the same thing? If they do the same thing, then why put both on 1 battery?

Variable wattage capability allows the device to read the resistance of the atomizer and adjust the voltage to achieve the desired output.

Variable voltage capability allows the user to set the voltage to his or her preference.

Again, both capabilities are just different means of achieving the same end, which is to find that "sweet spot" between insufficient vapor/flavor and burnt taste.
 

nova_did_it

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when you use VW the battery first reads the ohms of your coil before firing at the wattage that you have set. When you find the Wattage you like to vape at, then you can change heads with different ohms and the battery will read the ohms before firing at the wattage you have set. It's an almost set it and forget it type idea, but obviously, different ejuices, will have you adjusting wattage as well.

What I really like about VV/VW is the ability to read the ohms :D So its a good step to head in.
 

Capt.shay

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With VW, the electronics will automatically keep the power the same for different attys regardless of the ohm rating of the atty. With VV, the power will remain the same but it will not adjust if the atty has a different resistance so it will not be creating the same Watage........basically.

Personally I am always fiddling with the power for different juices, attys, even the amount of juice. I usually just leave it set to VV. To me the biggest advantage with VW is having an ohm meter to check my rba builds without having to pull out my meter.

Edit: Three answers in 3 minutes :laugh: I love this place!
 
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Sucker_dad

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Ok, this is somewhat complicated. If you set the voltage to say 3.6 volts, it does not matter what ohms your atty is built at it will provide 3.6 volts of power. but if you set it at 7.5 watts it will detect what ohms your coil is built and adjust the voltage accordingly. So you can use a coil with 1.7-2 ohm or one that is reading 3.5 ohm and not change the setting. That is the theory anyway. You cannot adjust both voltage and wattage at the same time.
 

cmdebrecht

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I have the mvp2 with both VV and VW. And while I really like it, I am unable to tell a difference when using one vs. the other. That being said, I am not much in tune with my vaping experience like a lot of folks here are. I don't keep track of ohms ad clouds and throat hit from one juice or device compared to another. I fiddle with the controls on my mvp2 if I am so inclined, and if it tastes burnt I turn it down.

I would say that VV or VW and the difference may be lost on all but the most discerning vaper. But it is fun to play around with whether or not I appreciate the subtleties.

ETA: See, I have no idea what I'm talking about. Please refer to above posts for sound advice :)
 
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six

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The only difference between VV and VW is that you are pre-determining the wattage you want to produce with VW.

VV - put your atty on and turn a dial or push a button to increase or decrease the wattage to taste. VW set the wattage you think is about right and it makes the change of voltage to create that wattage. If it isn't quite right you push a button or turn a wheel to change it.

VV and VW are the same thing bound by the same ohms law - just starting at different ends of the formula.
 
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peraspera

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For me the difference is all in the thickness and heat of the vapor. With VV I feel like the bigger clouds are warmer. With VW I feel like I can get that same size cloud but have it be cooler.

Using the same juice delivery device you should be getting the same temperature vape from VV as from VW if you calculated your VV setting correctly. For example, if you are vaping 8 watts using a 2.5 oHm device you should get extremely close to the same vape using 4.5 volts, Ohm's Law Calculator.

However, if you are comparing between separate devices you can see differences if you are pushing the upper power limits of one device but not the other.
 

yzer

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With the Sigelei Zmax I can run VV or VW anytime I want. I run it on the power setting (watts or VW) all of the time now. I use both 1.8 and 2.0 ohm cartos. With VV I must adjust the voltage every time I change carto resistance to get the same power (watts). With VW I simply set the desired power I want and the mod will automatically calculate how much voltage it needs to provide to the carto for the power I have chosen.

Also, the Sigelei Zmax won't remember voltage settings (in VV) after a battery is changed. It will default to 3.0V as a safety feature. In power (VW) mode, the Sigelei will remember my power setting after battery changes.

I have always driven manual shift cars. I'd say the difference between VW and VV is more like having power windows as opposed to crank windows. Both will accomplish exactly the same task but one is a lot more convenient. I still need to manually adjust wattage depending on where I want the vapor to go at a particular moment in time, much like shifting gears manually.
 
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tj99959

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    The reality is that the e-liquid could care less which mathematical formula you use to get to the same place. Many of us adjust the resistance, and still end up at the same place.

    Ohms Law is a circle, and it makes no difference if you go clockwise or counter clockwise.

    ohmlaw.gif


    Regardless of where you start from, there are always three formulas to get you from point A to point B. So choose whichever is easiest for you to wrap your head around.
     
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