The Variable Wattage and Variable Voltage debate.

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Mohamed

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^^that may have been the best definition for vv/vw I've seen so far
Thank you. I can't take credit for the gas pedal/speed control analogy though. I think another member on here made the analogy but I expanded on that analogy in more detail...I really hope it takes the confusion out of it for new and old members that struggle with the mathematics/physic equation dealing with ohms law. Ohms law really isn't that difficult but if you don't have the background to understand it it can be confusing. That description hopefully puts it layman terms so everyone can grasp the concept.
 

Mohamed

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Grimmda

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On the MVP 2 if you push the P button, you are in variable wattage mode. You hold the P button down until you see the setting and then continue to hit the P button to adjust watts up. It will round robin as you can't adjust in the down direction.

To get to Variable voltage mode you press the V button. You hold the V button until after the puff counter disappears, then continue to tap the V button to adjust voltage. It will round robin as you can't adjust in the down direction.

The manual will lead you to believe that if you simply tap P or V to look at your puff counter, it won't change modes, but that is incorrect. A tap to the P or U button will change it to Variable wattage, or Variable voltage.

If your MVP has +/- buttons, it is a version 1 and is variable voltage only.

Thanks man!


Sent from my iPad using Tapatalk
 

Mohamed

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FYI I found this link on the video above this post.

http://www................./ecal.html

If you are using a PV that only has VV and have a wide range of resistance atties like I do you'll probably find this useful. I'm fairly math/physics inclined but for those that aren't plug in any two numbers and figure out the rest. Use your device to find the resistance in ohms (I think most of the VV devices can check that?) and plug in what voltage you like to calculate your desired wattage. Then if you ever switch your atty to a higher or lower resistance (ohm) plug in the wattage you got before and your new resistance. This will calculate the voltage required to give you the "same vape". You should only have to go up or down a few notches from your ideal wattage level. A VW device does this automatically.

Not trying to push VV or VW...seriously what ever floats your boat; do it. I just find it nice that VW takes most of the guess work out of it. Of course you are going to "tweak" it for different juices, etc. Like I said in previous post I like a stronger, hotter, more throat hit vape in the morning...seems to get me going. In the evening I like to lessen that as I find it more relaxing. Sometimes I'm stressed and want more so I up it a few notches.

The whole notion of "Set it and forget it" with VW users and VW users don't "tweak" their settings with VW is nonsense to me. Even if all of my atties were the same resistance I'd still "tweak it" based on juice, time of day, and mood. I just find that with VW I have to do less "tweaking"...i.e I don't have to press the button 15 times to find my spot. Usually one-three up or one-three down from my normal wattage and I've found where I want to be. This is probably the same for any VV user that has all the same resistance atties. Like I said before VW is probably more useful for those that use different resistance atties or make their own coils.

Think I said this before as well but your atty changes resistance with usage. The more "gunk" that sticks to it over time the higher the resistance will be. With VV you'd have to increase your voltage to maintain the same vape over time. With VW your device will detect changes in your atty and adjust accordingly so that your vape remains the same.
 

Mohamed

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I'm fairly new at this and have been playing with both, and trying out different toppers. So last night I switched flavors without thinking, and scorched my nice new juice. So now I think I'll stick with vw for a while.

Another nice point I didn't think about. If going to lower ohm resistance and keeping the same voltage you can burn or blow out your atty with too high of a voltage. VW takes care of that for you automatically and will lower the voltage to match your current setup when you put on a lower resistance atty.

Thanks for the extra ammo to my VW argument. Again don't really care to each their own...but I think I do I have a preference towards VW. That's probably mostly due to my wide range of resistance atties though.
 

Coelli

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Another nice point I didn't think about. If going to lower ohm resistance and keeping the same voltage you can burn or blow out your atty with too high of a voltage.

That's another thing I love about the Provari (not to turn this into a Provari vs. the world thread). If the voltage is too high for the coil, it will tell you. I don't forget too often, but occasionally I do, and the Provari lets me know I need to adjust. Not a big deal at all.
 

Bosco

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To me . .VV or VW doesn't make any difference. I always make the same resistance coils for my electronic devices, I never adjust for juice because I always have every device turned up to max volts or max watts . .whichever the case may be, lol. My kick2 has been set at 15 watts since the day I got it. Vaping it right now with some Ben Johnson Cr3am in my cyclone clone . . 2.0ohm micro coil @ 15 watts. Yummm.

The only exception to my "max power all the time" rule is those rare occasions when I have a stock evod or something like that. I use those on my ego-twist and dial down accordingly. 15 watts on a stock evod head is going to be no bueno.
 

1wildman

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VV and VW are two ways to the same result. voltage^2/ohms = watts Watts is the work being done at the coil. More Volts = more watts at the same ohms. Using VW automagically adjusts the volts to get the desired end result in watts without any math.

I find it easier to tweak my setup in .5W increments instead of .1volt increments. Normally it takes a more than 1w for me to notice any discernible taste difference. I seem to enjoy anywhere from 8 to 10.5W depending on the juice.

Happy vaping!
 

Oxtail

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For me, the whole point of VV/VW mods is that I can find the sweet spot for all my juices. Some of my juices need a little more power to get the best taste. Some I can run a little cooler. Maybe if you only vape 1 juice or don't care about finding the sweet spot, you can set it and forget it. Otherwise you'd have to tweak your watts as well.

Look at PBusardo's reviews of VV/VW mods when he runs tests at different wattage. There's almost always a difference between what a VW outputs and what it should output. So if you're going to tweak, why tweak in VW and hope the device is translating it correctly instead of just tweaking in voltage directly?

For the convenience of not having to change the setting for different resistances, you give up control over the exact power level you're vaping at. I'm willing to give up a few seconds of my time adjusting the voltage to get a better flavor.
 

CommaHolly

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VV gal here.
I like different juices at different settings. VW would never work for me. If I used the same juice all the time I could see going to VW but that is not the case for me.


same thing here,,,

I had VW,,,,didn't like it,,,,,

but whatever works for someone is what they should get, KWIM???
 

CommaHolly

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I mentioned that I tried VW and didn't like it,,,,,

I should probably say why,,,,,,,,

I noticed that if I was at 4.0 volts or 4.2 volts, the wats number was the same,,,,,,,,,whatever the watts was, I forget now,,,,

but *I* tasted a difference between 4.0 and 4.2 volts,,,,,,,,,,

so I preferred volts,,,,,,,,,YMMV.
 

dr g

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I mentioned that I tried VW and didn't like it,,,,,

I should probably say why,,,,,,,,

I noticed that if I was at 4.0 volts or 4.2 volts, the wats number was the same,,,,,,,,,whatever the watts was, I forget now,,,,

but *I* tasted a difference between 4.0 and 4.2 volts,,,,,,,,,,

so I preferred volts,,,,,,,,,YMMV.

Many VV devices will not output the displayed voltage either in some situations.
 

tj99959

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    Ohms Law is a circle, and there are always three ways to get from point A to Point B.

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