Could you possibly explain vv to me? It makes it hotter vape? It makes some juices taste better? I swear I'm still in math class where I'm explained how to understand the equation over and over, yet I still don't get it!! (Ill kick your ... in history and science thou!)
Hi Magenta
All Vaping units are made up of three elements
1. The battery
2. PV Body of the Device
3. A coil that heats up
4. Eliquid
A Battery will charge to 4.2V and than as you vape it will go down in voltage until it is discharged.
With a Non VV setup there is not regulation and when the battery is charged it will vape hotter at the beginning and than when near to discharged will vape cooler. Unless the unit has some sort of voltage regulation which most cheapies don't.
Variable Volt will stabilize the voltage so that if all remaining factors remain the same you will enjoy a consistent vape.
Now a second variable is the Clearomizer/Cartomizer/Atomizer. For simplicity I'm just going to use the word Atomizer in place of naming Clearomizer and Cartomizer. All Atomizers have a coil [Except Bridgeless] and depending on which one you buy the coil will have a higher or lower Ohm rating or Resistance. I think that Resistance stands for Resistance to Current but I'm not sure. The simplest way to describe OHM/Resistance is. Imagine that you have a very fat metal coil and you put electric current into it. By the way the amount of electric current that you put into the Atomizer is measured in Volts. So they say running your E-Cig at 3.7V or outputting 3.7 Volts. Than you take the same amount of current and put it into a thin one. The Fat one will not heat up as much as the thin one.
So lower Resistance Atomizers will run hotter with the same amount of Volts going through them and Higher Resistance Atomizers will run cooler. The Acronym for Atomizers 2.0 Ohms and below are LR [Low Resistance] Standard Resistance SR are 2.4 to 3.0 Ohm and High Resistance HR is above 3.0.
One final variable is that over the life of your Atomizer/Cartomizer/Clearomizer the resistance or Ohms may change.
Variable Voltage has the advantage that it allows you to use different resistance Atomizer/Cartomizer/Clearomizer by changing the amount of voltage to match the resistance OHM of the Atomizer.
Now the final variable. Most E-Juices are different. For example I vape 100% Vg [Vegetable Glyercin] but the most common [Arguably] on the market is 70% PG [Propylene Glycol] and 30% VG [Vegetable Glycerin]. Different Juices will taste better at different temperatures. So a Variable Volt will allow you to compensate for differences in Juices.
With Non Variable Volt for the average Vaper [Not playing with the OHMS in RBA Rebuildable Atomizers] you can't tailor your voltage to provide for the best vape.