High vs low res .. basic question what is the difference

[mike n]

I am confused… I have seen and understand the Excel file that shows resistance vs voltage and seen the calculations for ohms but I still need to step back and understand the basics of why high res vs low res.

If I have a Lavatube, do I want a low res or high res carto and what are the pros and cons of each.

 

[Stef64]

With a VV device like the LT I prefer a regular/high resistance atty/carto. You will push lower amps and higher voltages compared to a LR but you will get a better vape IMO.

 

[imsoenthused]

To put it as simply as possible, low resistance is really just a way of imperfectly faking higher voltage vaping on a standard 3.3V-3.7V device. You can do this yourself, running LR stuff in your lavatube and cranking the voltage way down, but you will get better performance, and more battery life by just running a normal or high resistance atty/carto at higher voltage.

 

[Oban]

While I've never owned a LavaTube, from what I've read about them you'll probably want to use a SR or HR carto on it because of the built in regulation. IIRC that device will automatically lower it's output voltage if you use LR attys or cartos -something in the 2.5/3ohm range is needed to allow the device to run at 6v or somesuch. There are a few threads on the Volcano site about this, probably some info here Lavatube as well.

 

[Stef64]

The LavaTube has a current limit of 2.5A. With a 1.5 ohm carto you will reach this limit at 3.7-3.8V and generate about 9.5W. With a higher resistance carto, say 3 ohm, you can apply 6V and only draw 2A for a total power of 12W. So a higher resistance carto will allow you a much warmer vape.