Wrapping my head around VV VW

[geekmedic]

So if I understand correctly as explained in a video I saw someplace, VV is like a manual and VW is similar to an automatic. To me this means if using VV mode I need to adjust the voltage to find the right flavor and heat for my coil. In VW mode the chip will set the voltage based on the resistance. Am I correct in this thought?

Second; if a battery is fully charged at 3.7v, how is it possible to vape at anything higher in voltage?

Third; As I see it the real advantage of VW is if I like a particular juice at 10watts, and switch to a different tank with a different resistance (same juice) the mod will match the resistance with the set wattage and still deliver a consistent vape? But I will still need to adjust the wattage for each flavor juice?

Thanks for your help with my dumb questions

 

[HecticEnergy]

So if I understand correctly as explained in a video I saw someplace, VV is like a manual and VW is similar to an automatic. To me this means if using VV mode I need to adjust the voltage to find the right flavor and heat for my coil. In VW mode the chip will set the voltage based on the resistance. Am I correct in this thought?

Second; if a battery is fully charged at 3.7v, how is it possible to vape at anything higher in voltage?

Third; As I see it the real advantage of VW is if I like a particular juice at 10watts, and switch to a different tank with a different resistance (same juice) the mod will match the resistance with the set wattage and still deliver a consistent vape? But I will still need to adjust the wattage for each flavor juice?

Thanks for your help with my dumb questions

1) true to some extent. Depending on your juice the vape should be really simmilar with different resistance coils or heads. simmilar because lower ohms heats up faster, but the power delived to them will be the same

2) 18650's are fully charged at 4.2v... I think the same is true for egos.
it is possible to vape higher because it draws additional amps on the battery to make up for the lower voltage on the battery. if volts is volume amps is the intensity of that volume. (i'm no expert on this, so you may want to wait for another poster to more clearly explain this or do some more research on Amps vs Volts vs Watts)

3) I think thats pretty close if not right on. Some juice tastes better when more/less watts are applied to it. also throat hit and vapor changes.




Sent from my iPad using Tapatalk HD

 

[readeuler]

So if I understand correctly as explained in a video I saw someplace, VV is like a manual and VW is similar to an automatic. To me this means if using VV mode I need to adjust the voltage to find the right flavor and heat for my coil. In VW mode the chip will set the voltage based on the resistance. Am I correct in this thought?

Spot on.

Second; if a battery is fully charged at 3.7v, how is it possible to vape at anything higher in voltage?

This is the magic of electrical engineering. I believe it's called a "buck-boost regulator", although some devices can't "buck", but only "boost" to provide more voltage than what the battery actually has. I think it's just got some capacitors that store charge, then discharge, whenever you artificially up the voltage.

Third; As I see it the real advantage of VW is if I like a particular juice at 10watts, and switch to a different tank with a different resistance (same juice) the mod will match the resistance with the set wattage and still deliver a consistent vape? But I will still need to adjust the wattage for each flavor juice?

Yep, that's correct. If you're switching between single coils and dual coil heads, watch out. You'll probably need to up the the wattage for a dual coil atomizer, compared to a single coil. Dual coils split the wattage; if you're vaping at 10w with a dual coil atomizer, each coil is only getting 5w. A single coil would get all 10 of those watts. I don't know that you need to double the wattage necessarily; but you might consider giving it a bit more power

Thanks for your help with my dumb questions

They weren't dumb, they're great questions!

 

[amolson]

Second; if a battery is fully charged at 3.7v, how is it possible to vape at anything higher in voltage?

Two ways.

1) Used by Provari, MVP2, vv3, DNAx0 and SX3x0. They actually increase the voltage. They do this with a special electrical engineering circuit called a buck boost converterhttp://en.wikipedia.org/wiki/Buck–boost_converter.

2) More commonly used is what's called RMS voltage, or Root Mean Squared. This is where the effective voltage is how much of the time the voltage is on, using a square wave or turning the voltage on and off many times a second, holding it on longer for a higher effective voltage.

Some unlucky people can taste the difference between the two. That's why all my devices use buck-boost circuitry. The best way to see this is to watch PBusardo's video reviews. Compare the scope readings on the MVP2 and the 134 mini for a great side by side of the two from the same manufacturer.

 

[geekmedic]

Thanks for the replies, Getting my first box mod with a DNA30 soon and wanting to be as informed as I can. Decided to go with a regulated box for the safety. Now I just need to find some batteries that won't break the bank. I'm willing to spend the $$ on something that is proven, but skeptical of batteries laying around at the local shop unwrapped, (not in mfg packaging). How do you know they aren't some over hyped china junk?

Also don't bash me for this but, I have a flash light that uses an 18650 (I don't intend to use that battery in my box mod as it says slow discharge on it). But can the batts for the box mod be used in the flashlight? An easy way to carry a spare battery with me.

Thanks again, Keep Calm and Vape on!

 

[Susan~S]

Now I just need to find some batteries that won't break the bank. I'm willing to spend the $$ on something that is proven, but skeptical of batteries laying around at the local shop unwrapped, (not in mfg packaging). How do you know they aren't some over hyped china junk?!

From one Baditudes blogs:

Battery Basics for Mods: IMR or Protected ICR?
- choose the safest and right battery for your applications here. Includes a list of name brand, high-drain, safe-chemistry batteries with mAh & amp ratings in 18350, 18490/18500, and 18650 sizes.

Many mech mod users use Sony batteries
* Sony US18650VTC3 1600mAh 30 A - Flat Top
* Sony US18650VTC4 2100mAh 30 A - Flat Top
* Sony US18650VTC5 2600mAh 30 A - Flat Top

Only buy batteries from a reputable dealer (not ebay or Amazon) as there are many counterfeit batteries being sold. Here are a few reputable suppliers in the US.

* Illumination Supply
* Lighthound
* Orbtronics
* RTD Vapor -- Has Sony US18650VTC5 2600mAh 30 A - IN STOCK