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VV/VW | Please Explain

By: VaVaVape Staff  |  Revised: 2015

You have heard the terms or abbrevations thrown around probably in every place that you’ve looked. In this article we’ll discuss what VV/VW stands for, what they are, and what the are the differences between them.

What does VV/VW stand for and what are they?

First and formost, VV and VW stands for Variable Voltage and Variable Wattage, respectively. Both are forms of power adjustment for an electronic cigarette battery. Also similar to both, the higher the level, the more power. The more power that is provided to the coil, the faster the coil will heat up. This will typically lead to a bigger hit. One because the volume of juice being vaporized is greater and also because the juice being vaporized for a longer period of time during your drag.

I know that may not have been too clear, so let me explain it this way: When you press the button, the coil gets electricity sent through it. As it the electricity flows through the wire, the wire heats up (from the friction caused due to the natural resistance of the wire). The more power that goes through it, the faster it will heat up. So lets say, just as example, you take 5 second draws. At a low power, it may take two seconds for the coil to get hot enough to begin vaporizing the juice. So this means, in this example, that you are only inhaling vapor for 3 seconds of your 5 second draw. Now if you turn the power up, it may heat up fast enough that you are getting 4 seconds of vapor or maybe even the full 5 seconds.

What's the difference between VV and VW?

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Variable Voltage: A variable voltage device allows the user to adjust the power output of the device expressed in volts. Depending on the device used, the range can be from 3.2v - 6.0v, although, smaller, eGo style batteries will usually max out at 4.2v or 4.8v. Voltage adjustments on larger devices, like variable voltage mods, will have a higher range and usually max out at 6v.

With a variable voltage device you may have to make adjustments to the power setting depending on what tank or coil you have on the battery. The simplilest explaination for coil resistance and voltage is the higher the resistance of the coil, the higher you can set the power on the battery. So if you have a 3.0 ohm coil in there and have the power set to 5v and then switch to a tank with a 1.8 ohm coil, you will have to turn the power down to avoid getting a burnt hit. The burnt hit is produced because the coil is getting hotter, quicker and the wicks cannot keep up with the juice demand of the coil. When the wick dries out, the dry hit is produced.

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Variable Wattage: A variable wattage device also allows the user to adjust the power output of the device, except it is expressed in watts instead of volts. Depending on the device used, the range can be from 3.0w - 180.0w. Yes, 180w! See below for more information about high watt box mods.

When dealing with e-cig batteries, the form of electricity from the battery is wattage, regardless if your using a vv, vw or even a non adjustable battery. Wattage is calculated with Ohm's Law using the resistance of the coil and the voltage used. So when dealing with a variable wattage device, it will read the resistance of the coil, read the requested wattage output and adjust (internally) the voltage accordingling, so that it outputs the correct wattage.

So what does this mean as a vaper?

Many devices on the market now, have both variable voltage and variable wattage modes. Yet there are some that are either/or. Based on the information above, using a device in vw mode or using a device that is only variable wattage could be considered more of a set it and forget it device or mode. With VV, you have to make adjustments if you change to a coil with a different resistance (any difference).

Let's say you are using a vw device and find your favorite juice hits perfect at 9w. You can swop tanks or coils, even if they have a different resistance, and the device will adjust the voltage internally for you. Ensuring that you get that perfect hit, again and again. I do have to warn, this doesn’t mean that adjustments wont be needed. It cannot compensate for extreme changes. Like when switching from a 1.8ohm coil to a 3.0 ohm coil, for example. That drastic of a change will need some adjustment from the user.

High Wattage Box Mods


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High wattage box mods are the latest craze in the market today. These are variable wattage only devices that can produce lots of power. For the majority of tanks on the market, these devices are overkill. However, with the popular subohm tanks hitting the market, high wattage box mods are gaining some ground./

One of the biggest advantages of high wattage box mods is the ability to fire sub ohm coils. That's coils that are lower than 1.0 ohm. Before these types of devices became available, the only way to enjoy a coil with that low of a resistance was to use a mechancial mod. And although they are generally safe, they are not as safe as a regulated device, which has built in safety features that cannot be found in mechanicals.

There are several options available when it comes to high watt box mods and a lot of them have small differences, especially if they are around the same power output. We have several of the more popular devices in stock, in our stores. We suggest, swinging by one of our locations and asking a staff member to show you a couple options. Touch it, feel it and see if you like it.



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