Sorry for the noobish question.. Ok, so I have been using VV on my Provari for over two years and more recently my Spinner. I have recently this week acquired a Vamo VV/VW. Can someone please explain in laymans term how the VW setting is different than VV. I have been just playing with the watts until I hit the sweet spot. Now what I don't understand is do I just leave it on this setting when I change to a different resistance atomizer? With VV just start out low then crank it up until it vapes like I want it to. Also, are the any advantages battery life wise with either VV or VW?
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Yes, that is the general idea. And I do say "general" because VW is much less accurate when trying to hit that sweet spot. Most of the time it's a tenth of a volt higher or lower than how you would set your VV to hit true sweetness. Sometimes more. Wattage is an expression of power output. Which for a lightbulb is light and some heat. But in regards to vaping, heat and some light(your coil will glow when it's dry). VW devices adjust the voltage so that no matter what resistance coil you attach it will always produce the same wattage, or in our case: heat.
The problem is that the increments of adjustment are just too big. Half-a-watt increments equate to mostly .2 and sometimes .3 volt jumps.
Don't get me wrong, I have a Provari as well as a VV/VW device, which i NEVER use VW on. Every juice has a different sweet spot and VV is just a much better way of finding it.
Now in the case of my girlfriend, she could care less about all this voltage/resistance/wattage mumbo-jumbo. She just wants some vapor. So I set it to 7W and no matter what she screws onto it it doesn't burn, as 7.5W will sometimes do. It may not be as warm and flavorful as it could be( like if it were .1 or .2V's higher), but like I said, she just wants some vapor. Just set it and forget it!!!
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Ooohhh...I may have to counter that...
I see VW is more accurate when trying to find that sweet spot since the voltage will increase or decrease (+- 0.01) by precise measure to get to that target watts whereas voltage increase/decrease is dependent on the device like; 0.1, 0.5, etc...
e.g.: watts is on 8 with a 2.5ohm is running at 4.47volts whereas a vv can't run 4.47, but either 4.4 or 4.5
I see VW is more accurate when trying to find that sweet spot since the voltage will increase or decrease (+- 0.01) by precise measure to get to that target watts whereas voltage increase/decrease is dependent on the device like; 0.1, 0.5, etc...
e.g.: watts is on 8 with a 2.5ohm is running at 4.47volts whereas a vv can't run 4.47, but either 4.4 or 4.5
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I'll see your wattage and raise you a tenth of a volt.
Raising your voltage .1 at a time will increase your wattage in smaller increments than .5 at a time. Which is the increments available in VW mode on every VW device I have ever seen. If there is a VW device available that has .1W increments it would then actually have "finer" adjustment then VV. And if there is one, I wanna know what it's called because I want one.
Just use an ohm's law calculator. Plug in your stated 2.5ohm resistance, and starting at say 4V raise the voltage one tenth at a time. You can clearly see that the wattage is increasing less than .5W at a time. It's more like .3W, hence "finer" adjustment using voltage.
VW is also known as Variable Power. It lets you adjust the amount of power sent to your atomizer. And power (wattage) is the amount of heat per second. So, VW means you adjust the rate at which energy is transferred from the battery to the atomizer.
With VV, you don't directly adjust the power. Instead, you adjust the voltage. And the resultant power is calculated from P = V2/R, where P is power, V is the voltage, and R is the resistance of your atomizer in Ohms.
VW is easier because you don't need to worry about measuring coil resistance or do calculations. Your device does that for you.
In theory, VW is slightly less efficient because it must constantly check the atomizer and make adjustments automatically. In practice, it's negligible because it's orders of magnitude smaller than the power needed to heat a coil.
I've been really interested in the difference as well. I have been using my new eVic for the past week or so and have been loving it. I use it in VW mode because well, I'm not sure why, but most of my atomizers and juices all seem to vape and taste great around 7.0-7.5w. So, I guess it starts to come down to the differences between low, standard, and high resistances, which I'm still really confused on (beyond the basics)...
.1W increments would provide approximately 3 times "finer" power adjustments than .1V increments. Very nice!
Sold!!! to the guy in the gas mask!
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