newbie trying to understand VV

[railz68]

Hi all,

I started with the eGo-T, and got the eG-c Twist on Monday. At first, wasn't sure what to expect or what to do with, just heard it's better.

So i have found some charts online, and I think i understand how it's instructing to use VV with the ohms you have.

Reading this chart

I have a 1.8 ohms coil, so the safe zone for voltage is 3 - 3.75. And somewhere in this zone, is the best flavor/vape. Do i have this right ?.

I have the Protank II Mini, and a EVOD, they both came with 1.8 ohms (fairly sure). So i bought a 5 pack of replacements the same thinking that would be best for these tanks.

But I see they go up to 3.2 ohms. Why ?

Does getting higher ohms, then applying more voltage equal better flavor/vaper ?.

Do people try out the different ohms to find what works best.

thanks for any help here.

 

[p.opus]

Before the advent of variable voltage batteries, the only way to coax more flavor out of the atty was to use a coil with lower ohms. This would increase the power (watts) seen at the coil.

Coil resistance for a given wire composition is determined by two major factors; wire thickness, and the number of "wraps" in the coil. More wraps means more wire exposed to the fluid, but to keep a lower resistance, you have to use thicker wire which can take longer to heat up. So it's a trade off. Less wraps using thinner wire, or more wraps using thicker wire that takes longer to heat up

As a result, people with adjustable voltage batteries often choose to use higher resistance coils so they can take advantage of the thinner quicker heating wire and still maintain the number of wraps that provides more surface area to the liquid. This is also why dual coil setups are becoming popular. A 1.5 ohm single coil head often has to either be made with thicker wire or very few wraps. However, I can create a 1.5 ohm "dual coil" which consists of two 3 ohm coils in parallel. So the advantages of a 1.5 dual coil means nearly 4 times the surface area as a 1.5 ohm single coil for a given wire thickness.

Of course a dual head 1.5 ohm build (consisting of two 3 ohm coils in parallel) will draw more amperage than a comparable 3 ohm single head coil and will drain the battery quicker.

I hope that made a bit of sense.