Ohms/volts/watts
- Thread starter Dltugg
- Start date
- th_trl_thread_readers 0
- Status
Think of ohms as the grass in your yard, volts as the color of the cheese in your fridge (yellow / white) and watts as the age of your pet when you first kissed a girl.
Now, stick with me, it's going to get complicated...
Just kidding. Someone will be along to throw a bunch of equations at you in just a few moments.
In the meantime, just think that you probably want to vape around 5-8 watts on a normal setup. Adjusting the ohms (or resistance) of the head / topper and / or the volts of your device is a good way to get to that number.
What is your current setup and I can use it to give you specific examples without throwing a bunch of math at you.
Now, stick with me, it's going to get complicated...
Just kidding. Someone will be along to throw a bunch of equations at you in just a few moments.
In the meantime, just think that you probably want to vape around 5-8 watts on a normal setup. Adjusting the ohms (or resistance) of the head / topper and / or the volts of your device is a good way to get to that number.
What is your current setup and I can use it to give you specific examples without throwing a bunch of math at you.
If you've never messed with electronics and such it is confusing.
Ohms is resistance to the flow of electricity. Consider it in plumbing as to the size of a pipe or hose, the longer or smaller it is the more resistance to the flow of water.
Volts is the driving force of the electricity. Same as what water pressure is, the more pressure the greater flow.
Watts is the amount of electricity flowing. Same as gallons of water.
A good way to figure the amount of wattage needed to properly get the coils burn correctly is to use the formula of:
(Volts x Volts) divided by Ohms = wattage.
On my iTaste SVD battery mod I can adjust both wattage and voltage to get the right amount of vape. It takes some tinkering and adjusting 'till you find that sweet spot that suits your taste.
Here is a handy chart you can download and use for reference. It's from www.reddit.com
Anywhere in the green shaded area should be good for "suggested optimum vaping".
Ohms is resistance to the flow of electricity. Consider it in plumbing as to the size of a pipe or hose, the longer or smaller it is the more resistance to the flow of water.
Volts is the driving force of the electricity. Same as what water pressure is, the more pressure the greater flow.
Watts is the amount of electricity flowing. Same as gallons of water.
A good way to figure the amount of wattage needed to properly get the coils burn correctly is to use the formula of:
(Volts x Volts) divided by Ohms = wattage.
On my iTaste SVD battery mod I can adjust both wattage and voltage to get the right amount of vape. It takes some tinkering and adjusting 'till you find that sweet spot that suits your taste.
Here is a handy chart you can download and use for reference. It's from www.reddit.com
Anywhere in the green shaded area should be good for "suggested optimum vaping".
Last edited:
Ohms = Electrical resistance.
Volts = Potential energy (kinda abstract/esoteric)
Watts = Power
These things are used by variable voltage or wattage devices. If you use a "fixed" e-cig, like an standard ego or a cig-a-like, you should get the lowest ohm (resistance) atomizer you can buy.
When dealing with volts, I think GrimmGreen vulgarizes it the best: The lower the ohms of your atomizer, the lower the voltage. The higher the ohms of your atomizer the higher the volts.
You do not need any math to get a satisfying vape out of a variable voltage device.... Start low, like 3.4 volts and then vape. If the vapor is not intense enough, pump up the voltage of your device and then vape again. Repeat until you think the vapor and the flavor are just perfect for you. There is no magical numbers.
Watts works in a similar way. Start low and pump it up until you are satisfied. However, unlike volts... You do not need to change the watts when you screw an atomizer that has a different resistance.
Volts = Potential energy (kinda abstract/esoteric)
Watts = Power
These things are used by variable voltage or wattage devices. If you use a "fixed" e-cig, like an standard ego or a cig-a-like, you should get the lowest ohm (resistance) atomizer you can buy.
When dealing with volts, I think GrimmGreen vulgarizes it the best: The lower the ohms of your atomizer, the lower the voltage. The higher the ohms of your atomizer the higher the volts.
You do not need any math to get a satisfying vape out of a variable voltage device.... Start low, like 3.4 volts and then vape. If the vapor is not intense enough, pump up the voltage of your device and then vape again. Repeat until you think the vapor and the flavor are just perfect for you. There is no magical numbers.
Watts works in a similar way. Start low and pump it up until you are satisfied. However, unlike volts... You do not need to change the watts when you screw an atomizer that has a different resistance.
Last edited:
Don't wanna be a smartass here but watts is not the amount of electricity flowing, that would be amps (current). Watts is the amount of power or work or in our case heat that flows through the system.
Disclaimer: This is the most simplistic explanation and is addressed to new vapers mostly or vapers who are happy within the recommended "just right" power zone (4.5-8 watts). If you are using dual coil atomizers or are interested in high wattage vaping, it's a different conversation altogether. 
You will also have to understand the concept of amp limits and how it applies to high power vaping.
Ohm's Law as it pertains to vaping is really not that complicated--and it's very useful when you want to know what you're doing.
Voltage and wattage are often misunderstood by new vapers. Wattage is the power (heat, sweet spot) that your PV (battery and atomizer) generates. Wattage = Voltage (of your battery) squared divided by Resistance (Ω) of your atomizer [P=V[SUP]2[/SUP]/R]. If you're not good at math, don't worry, use this easy calculator:
Online Conversion - Ohm's Law Calculator
Of course, if you own a VW (variable wattage) device, you don't really need this calculator because your device will do the math for you.
The wattage you want, especially at the beginning of your vaping career, should be somewhere between 4.5 and 8.5 Watts. Anything lower than 4.5 watts may not vaporize your juice properly and will not produce enough warmth and vapor. Anything above 8.5 watts increases the risk of burning the filler in your cartomizers (if you're using them) and even some juices, especially the delicate ones.
There are, of course, other variables, like eliquid and JDD (juice delivery devices) that you're using on your batteries. Seven watts on a filler type cartomizer may feel different than the same 7 watts on a fillerless clearomizer or a dripping atomizer. The same is true for different eliquids; tobaccos, chocolate and coffees generally require more wattage (heat), while fruit and other delicate flavors do better with less heat. Everyone's sweet spot is different--those are just very general guidelines.
Experiment and you'll find your own bliss in no time!
The chart below is a good guide to safe vaping, even though some think it's a bit conservative.
You will also have to understand the concept of amp limits and how it applies to high power vaping. Ohm's Law as it pertains to vaping is really not that complicated--and it's very useful when you want to know what you're doing.
Voltage and wattage are often misunderstood by new vapers. Wattage is the power (heat, sweet spot) that your PV (battery and atomizer) generates. Wattage = Voltage (of your battery) squared divided by Resistance (Ω) of your atomizer [P=V[SUP]2[/SUP]/R]. If you're not good at math, don't worry, use this easy calculator:
Online Conversion - Ohm's Law Calculator
Of course, if you own a VW (variable wattage) device, you don't really need this calculator because your device will do the math for you.
The wattage you want, especially at the beginning of your vaping career, should be somewhere between 4.5 and 8.5 Watts. Anything lower than 4.5 watts may not vaporize your juice properly and will not produce enough warmth and vapor. Anything above 8.5 watts increases the risk of burning the filler in your cartomizers (if you're using them) and even some juices, especially the delicate ones.
There are, of course, other variables, like eliquid and JDD (juice delivery devices) that you're using on your batteries. Seven watts on a filler type cartomizer may feel different than the same 7 watts on a fillerless clearomizer or a dripping atomizer. The same is true for different eliquids; tobaccos, chocolate and coffees generally require more wattage (heat), while fruit and other delicate flavors do better with less heat. Everyone's sweet spot is different--those are just very general guidelines.
Experiment and you'll find your own bliss in no time!
The chart below is a good guide to safe vaping, even though some think it's a bit conservative.
and current is a reddish-bluish-purplish berry that makes a lovely jam
my rendition of electrical terms
Volts = pressure
Ohms = Valve
Amps = Flow
Watts = ability to fill the bucket
imagine a water system the water pressure in the pipe along with a valve on the end of it ( garden hose with spray handle)
by adjusting the sprayer to full open flow ( low resistance, low ohms) you get lots of flow ( hi amps) at the pressure supplied in the hose ( voltage) if you reduce the spray nozzle to minimum flow ( hi resistance, hi ohms) you get less flow ( amps) even tho the pressure is the same ( voltage)
At low resistance and hi flow you fill the bucket fast ( hi watts) at hi resistance the bucket fills slower ( low amps,watts)
by changing the pressure ( voltage) and the resistance ( sprayer setting) you can adjust the flow rate and fill time of the bucket
Volts = pressure
Ohms = Valve
Amps = Flow
Watts = ability to fill the bucket
imagine a water system the water pressure in the pipe along with a valve on the end of it ( garden hose with spray handle)
by adjusting the sprayer to full open flow ( low resistance, low ohms) you get lots of flow ( hi amps) at the pressure supplied in the hose ( voltage) if you reduce the spray nozzle to minimum flow ( hi resistance, hi ohms) you get less flow ( amps) even tho the pressure is the same ( voltage)
At low resistance and hi flow you fill the bucket fast ( hi watts) at hi resistance the bucket fills slower ( low amps,watts)
by changing the pressure ( voltage) and the resistance ( sprayer setting) you can adjust the flow rate and fill time of the bucket
You're correct, and I stand corrected. I had the proverbial brain fart.
When you reach 180 years of age you'll have them too!
+1000 to this image, its my desktop background. I vape in the Irish olympics and always go for the green.
Last edited:
With a VW/VV device such as the Tesla, are you supposed to adjust BOTH wattage and voltage on the device or just setting the wattage or the voltage without adjusting the other will be sufficient? Very confused right now.
Watts and Volts are proportional to each other. If you keep the same resistance(Ohms) and raise the voltage your watts will also increase. If you switch to Watts and increase that it will increase your voltage. If it's like the SVD it has wattage or voltage mod. The device just remembers the last setting when you switch modes. It can be a little confusing but it only uses one mode at a time.
There really isn't such a thing as a wattage regulator. VW devices use voltage regulators. Your device basically calculates the amount of voltage you need based on the resistance present when you set the wattage.
Last edited:
+1 to this. Very good point. I'm a newb, but I know my 'tricity!
Dumb question but can you not vape like your used to and not worry about the ohms and the volts? What is the purpose of owning a device that has volts and watts? I understand the ohms is to know what the tank reads. I am just confused I guess.
- Status
Similar threads
