How many volts is the battery you are using? The correct resistance to use is based on the voltage of your battery.
Honestly, if you want a 5v vaping experience you can do one of two things. You don’t need to purchase an entirely new unit, and most don’t. The thing to know is that most people believe there is a vaping sweet spot of 6-8 watts of power. Any more than 8 watts and people start to complain about burning out their atomizers, and the vapor being too 'hot'. Any lower than 6 volts and people find that they don’t get as much vapor/flavor. SO, 6-8 watts is what people shoot for. Now, most people, here, do not talk about watts all that much. So bear with me a second.
Here is the equation for power in an electric circuit.
P = (V^2)/R
Power (watts) is the square of the potential difference (Volts) divided by the resistance (Ohms).
So, knowing that you are looking to land within the 6-8 watt range, there are two things you can adjust. One would be the voltage (battery) and the other would be the resistance (atomizer).
Lets examine a standard battery/atomizer.
Standard Battery: 3.2 V
Standard Atomizer: 3 Ohm
P = (3.2*3.2)/3 = 10.24/3 = 3.41 watts of power going through it.
As mentioned before, the sweet spot is 6-8 watts. As you can see, the standard setup does not fall within this range. You will hear people saying "Wow, I get a lot more vapor and Flavor with a 'high voltage' setup." What they really mean to say is that there is more power going through the circuit, and that power is evaporating more fluid than a normal setup.
One way to get 'high voltage' experience is to alter your Atomizer's Resistance
Lets check out a normal battery, with a low resistance atomizer.
Standard Battery: 3.2 V
Low Resistance Atomizer: 1.7 Ohms or 2 Ohms
P = (3.2*3.2)/1.7 = 6.02 watts
P = (3.2*3.2)/2 = 5 watts
P = (3.7*3.7)/1.7 = 8.05 watts
P = (3.7*3.7)/2 = 6.845 watts
As you can see, some end up using a 2 Ohm LR atomizer on a normal battery. And those are the people who really don’t see much of a difference with using the LR. I’ve met plenty of people that tell me they don’t notice all that much of a difference. Well, they were using the 2 ohm resistance atomizers on a 3.2 volt battery. This wont land them in, what people call, the sweet spot.
Please do not confuse that statement. I did not say that 2 Ohm LR atomizers are a waste of money. Far from it. Those with a 3.7 Volt battery will find the 2 Ohm resistance Atomizer to be fantastic. It lands them, almost, right in the center of the sweet spot. These people will find that the 1.7 Ohm resistance Atomizers to be a bit hot, and can reduce the atomizer lifespan because of it.
Which Low Resistance Atomizer you chose will be dependent on the battery you are using.
One way to get 'high voltage' experience is to alter the Voltage on your Battery.
Lets take a Standard Atomizer with a 5 V battery. After all, it is where 5V vaping got its name, right?
Standard Atomizer: 3 Ohm
Bigger Battery: 5 Volts
P = (5*5)/3 = 25/3 = 8.33 watts
It is at the high end of the sweet spot. And because of that, the atomizer burns a bit hotter than you would normally like. It is also why people will tell you that you are gaining vapor/flavor production at the cost of your atomizers lifespan. This does not necessarily need to be true.
Now we will make the classic mistake
Low resistance atomizer combined with a 5 volt battery.
P = (5*5)/1.7 = 14.7 watts
P = (5*5)/2 = 12.5 watts
The guys/gals that did this are easy to find. They are the ones who say they are popping atomizers every week, or they notice a very hot vapor. They just have too much power going through the circuit.
Conclusion
I hope this helps you when deciding what items you should purchase to get a good 'high voltage' vape. At the very least, I hope it helps you to determine which kit it best for your needs. If you follow this, it may save you from spending too much on gimmicks like variable voltage, dials, and so on. They are all extremely over priced at this time, and I would hate to see you spend too much just because you didn’t know why you were purchasing what you were purchasing.
A good rule of thumb.
1)You want to switch your battery OR switch your atomizer. You do not want to do both at the same time.
2)If you want to swap out the atomizer, pay attention to which battery you will be putting it on. The battery determines which LR atomizer is best.
Personally, I prefer using a 3.7 volt battery and a 2 Ohm atomizer. It lands me right in the sweet spot, but also provides my atomizer with some longevity.