VV's from MadVapes

[riverwhiskey]

Has anyone tried the vv boxmod from madvapes. Economical at $32, and probably not as robust as any of the more expensive models, but if functional would give an idea of VV performance over others.

Also what advantage is vv over say various single voltage mods, and how would they be used, what are the negatives? Different Ohm atomizers or Cartomizers at different voltages. I guess I don't understand.

Maybe someone can help me here or point me to a more in-depth thread.

 

[LibertariaNate]

The VV box from Madvapes is a great way to test the VV waters.

Basically with VV it doesn't matter the resistance of your atty or carto because you can adjust the voltage up or down to hit your sweet spot. The only negative I can think of is that particular box uses a linear regulator which is not as efficient as a switching regulator and battery life will suffer a bit.

 

[fsroq]

The VV box from Madvapes is a great way to test the VV waters.

Basically with VV it doesn't matter the resistance of your atty or carto because you can adjust the voltage up or down to hit your sweet spot. The only negative I can think of is that particular box uses a linear regulator which is not as efficient as a switching regulator and battery life will suffer a bit.

Totally agree. Dont buy it, you will be spoiled and sold forever, like happened to me. lol

 

[elan123]

Has anyone tried the vv boxmod from Madvapes. Economical at $32, and probably not as robust as any of the more expensive models, but if functional would give an idea of VV performance over others.

Also what advantage is vv over say various single voltage mods, and how would they be used, what are the negatives? Different Ohm atomizers or Cartomizers at different voltages. I guess I don't understand.

Maybe someone can help me here or point me to a more in-depth thread.

I am in the same boat as you... I ordered one of them and expect to get it on Wednesday...

I am mechanically challeged, ohms and resistance and volts are all greek to me..

Anywhere to learn more about this? That would help!

 

[Icoth]

VV devices also maintain a consistent voltage over almost the entire battery's charge. Unregulated models just give you whatever the battery is providing, 4.2 volts down to mid 3's, depending on when you change batteries. I think the regulated 5 volt models give the same consistency as a vv.

 

[LibertariaNate]

I am in the same boat as you... I ordered one of them and expect to get it on Wednesday...

I am mechanically challeged, ohms and resistance and volts are all greek to me..

Anywhere to learn more about this? That would help!

Here's a decent place to start. Additional resources and links are provided in this thread as well: http://www.e-cigarette-forum.com/forum/ecigarette-technical-issues/141082-ohms-law-vaping.html

 

[riverwhiskey]

OK, so is there greater danger of burning out an atty if starting at a higher voltage with a lower ohm atty? or what will be the effect of high - low voltage on a high ohm - low ohm atty? am i on the right track here?

 

[LibertariaNate]

OK, so is there greater danger of burning out an atty if starting at a higher voltage with a lower ohm atty? or what will be the effect of high - low voltage on a high ohm - low ohm atty? am i on the right track here?

Correct. It would be inadvisable to use a LR atty with higher voltage. More than likely you would end up with burnt juice and you could possibly blow the atty. As a general rule, I don't go above 8 watts. Some people do and have great success with it, so YMMV.

Watts = (Volts / Resistance) x Volts

Example - 1.5 Ohm atty @ 5v <- I wouldn't recommend this!

16.667 = (5 / 1.5) x 5

Example 2 - 1.5 Ohm atty @ 3.4v

7.71 = (3.4 / 1.5) x 3.4

Basically watts = "heat". More heat generally means more TH and vapor.

 

[riverwhiskey]

Interesting. Thanks for the link, I will take a look and follow that thread. You have been a great help, and your examples make a lot of sense!

 

[LibertariaNate]

Glad I could help.

FWIW, I love my VV mods.

 

[dormouse]

Lower ohms get hotter
Higher voltage makes things hotter
So basically, if an atty or carto is low resistance relative to the voltage, it will get hotter. If the voltage of a battery was only 2 volts, then a 1.8 ohm atty would not be low resistance for it. Put the same 1.8 ohm atty on 3.7v battery and it is low resistance. Crank that battery up to 5v and you might pop the atty.

Yes you can blow out attys. LR attys may not be the best thing to use on VV devices. Put a standard atty on then crank up the voltage to the heat you want.

 

[TomCatt]

Excellent posts Nate!