Understanding how e cigs work is more than simply the volts of your battery.
It’s about oHms, Watts, Amps AND Volts and how they react to your device.
The math can be confusing to some but it’s important to understand at least the basics.
Although we can cheat a bit by using charts.
ALL delivery system devices have oHm ratings
The formula’s are:
Watts = Volts X Volts / Ohms
Amps = Volts / Ohms
Here’s some in depth information already written-
There are reasons one should understand the basics-
- To know the correct resistance for your accessory delivery system purchase
- To help find your sweet spot of vaping
- To insure you don’t overpower and burn out the accessory device
Some general guidelines-
Power (watts) is the intensity of the vape. 6-8 watts is the “sweet spot” for most vapers
Current (amps) is what can burn out atomizers. 1.5 – 2.0 amps is fine. 2.0+ amps is risky
- The lower the resistance of your device, the faster it will drain the battery
- The lower the resistance- The lower the volts you should use
- The higher the resistance- The higher the volts you can use
- If using VV a good rule of thumb is to add resistance plus 2 volts then adjust up or down
So, with a 1.8 oHm Atty plus 2 volts = 3.8 volt setting
- For a 3.7 volt device use 1.8 oHm resistance
I saw this somewhere and thought it may be a useful too-
At an experiential level- LOWER OHMS:
- Will run hotter producing a warmer vapor
- Will create more vapor
- Will produce more throat hit
- Will affect the flavor produced either by producing more or diminishing it.
- Will drain your battery faster
- Will go through e-liquid a little faster which increases the likelihood of a dry hit if your e-cigarette can’t keep up with the rate of use
At an experiential level- HIGHER OHMS:
- Will run a bit cooler producing a cooler vapor
- Will create less vapor
- Will produce a smoother vape with less throat hit
- Will affect the flavor produced either amplifying or diminishing it depending on the individual flavor.
- Will allow your battery to last longer between charges
- Will use less e-liquid
Everyone has different tastes and expectations.
Some may look for a warmer vape, providing greater throat hit.
Some may want a milder all round experience.
At times we want the ability for both so it’s nice to have a couple of oHm variations with any given accessory.
When ordering a new system to try it’s best to get 2 variations.
If you’re ordering a Cartomizer you wish to try a 2oHm and a 1.8 oHm to see which one works best for you.
If you own multiple E Cig devices you may find one suits one better.
You will get to know what you like by experimenting.
Here is an easy to follow Chart for those that don’t wish to use math-
3.7 Volt E Cigs-
Let’s look at an example from the chart above.
Follow the 3.75 volt column listed on top.
We can see that the safe resistance range is from 1.8 up to 3.5 oHms.
This may be true BUT on all 3.7 volt devices I’ve used, I find anything over 2 oHms produces insufficient levels of vapor and little satisfaction.
For my Silver Bullet ( a 3.7 volt Mod) I always use 1.8 oHm.
In some respects a 3.7 volt device is simpler to work with.
You are given a voltage limit.
Everyone has different tastes so it’s impossible to give a single set of numbers to abide by.
Various delivery systems also react slightly differently.
E Liquid viscosity is a factor too as Flavor/Taste alters at different outputs.
Sometimes e liquids taste better at 4.5 or 5 volts.
One important point regarding 3.7 Volt devices.
Lower oHms will provide a better vape, in general, but lower oHms reduce your battery life.
This is ONE of the primary reasons for owning a larger style E Cig.
Perhaps a Tube Mod or a variable voltage device.
They take much larger batteries and allow for all day vaping without the need to recharge.
Variable Voltage E Cigs-
Because we have a far greater range to work with, this also allows for greater flexibility in deciding what resistance to try.
Look at the column showing 4.75 Volts.
The safe resistance range is 2.8 – 5.0 oHms.
I would recommend trying various settings with a 3.0 oHm device.
A good rule for experimenting with resistances is to use an Atomizer.
Grab yourself an i06 and double it as a dripping Atty or for testing various juices.
This way you’re not spending a lot on a Tank system like a Kanger. Once you know what range you like you can order more expensive delivery systems.
If you already own something like a Vivi Nova or Kanger ProTank you can simply buy a few coils at various resistances to experiment with. They’re very inexpensive. $3 at the most.
In general, for VV devices, I tend to stick with 3 oHm resistance.
But everyone needs to experiment to determine one’s preferences.
There are other handy charts here-
Here’s a great little program to use for all the specs.
I hope this has been helpful
Thanks for stopping by