VV vs. VW: Really different?

[mgalyan]

So I'm trying to wrap my head around the real benefit of VW...

I have a pretty basic understanding of electronics, resistance, etc.

Why is VW so much better?

Say for example... I love clearo X at 8 watts (4v).
I "set and forget" my mod to 8 watts. I always want this power, right?

Clearo Y has a crappy coil in it. Just not as efficient. So I attach it, my mod calculates the new voltage/resistance/wattage...

And I inhale metal.

This is a hypothetical in my mind, and maybe I'm missing something... but VW sales pitch as "set-and-forget", and expect all your attachments to be spot on, every time sounds like a fallacy to me.

 

[stevegmu]

If you only vape 1 flavor in many different delivery systems with coils of different resistance and switch them out all the time, VW may be of benefit. If not, it is pretty much a 'feature' created to drive sales.

One of the most well known and popular mod makers uses a chip which is only VV and they seemingly have no shortage of satisfied customers.

VW can't factor in flavors, nicotine content, viscosity, PG/VG ratios, nor temperature of the juice and tank- all of which would be needed to set-it-and forget it.

 

[Fulgurant]

Variable wattage isn't better than variable voltage. It's arguably easier, but not better.

I think your example sorta misconstrues the point of variable wattage, though: bad or inefficient coils are what they are, and no power-delivery system can fix them. Likewise, the battery can't convince you to enjoy every juice at exactly the same wattage. Variable wattage doesn't claim to guarantee you your preferred flavor; it just cuts out a little math if you generally prefer a given wattage and like to switch attomizers regularly.

Personally, I use the feature on a very limited basis. I have accumulated a number of different juice attachments at different resistances, so every once in awhile when I'm in a swappy mood I'll use wattage mode, but generally I prefer to check the ohms of each attachment and then dial the voltage accordingly. On cheaper devices, voltage mode is often more accurate, at least at the margins.

 

[p.opus]

I can attest to the ease of use of a VW device.

I vape at 6.5 to 7.0 watts depending on the juice. 6.5 works the best for me.

My three tanks have 2.5 ohm coils, but their actual reading goes varies between 2.4 to 2.9 ohms.

In VW my iTaste provides consistent vape quality throughout and inbetween tanks.

In VV mode, I would have had to adjust my voltage between each tank .

VW mode works the best when you have similar tank/atty designs. I'm not sure that 6.5 watts would taste the same on a Min iProtank 2 as it would on an iClear 30. So in your comparision, variable wattage is not as set and forget as some people would claim. If you often change tank designs (top coil/bottom coil dual coil/single coil, plastic, pyrex, carto, clearo, tank, etc.) then VW will not be set and forget.

For myself though, I vape exclusively using MiniProtank 2's So for me, the variable wattage works great.

Is it a deal breaker? By no means. But for those of us that have settled on the gear we like, and aren't constantly tinkering with our vape gear, Variable Wattage works very well.

 

[InTheShade]

Even though some tout VW as a "set and forget" feature of APVs, in my experience you still have to dial it in a little.

VW is only easier than VV if you do not know how to change your voltage to a different resistance head. As most people can figure out how to push either an up or a down button to change their voltage, don't believe the hype so much.

VW or VV is just a different way to get to the same thing - a vape that satisfies you. I don't think one is better than the other and there is no setting and forgetting.

 

[quiter]

A variable wattage device takes into account the ohms of your atomizer to that if your sweet spot for any given vape is say 5 watts it doesn't matter what topper you have on you will get 5 watts with the combination of voltage and ohms combined. Nice feature but basically meaningless because your sweet spot will vary with each topper and each juice so you still need to go up and down to find it and VV gives you that same option.

What is more important is having a good chip set in the device so that it maintains whatever it is that you set it at from start to finish. The most well known popular and yes one of the most expensive devices has great chip that is just VV BUT it maintains that voltage throughout the entire battery cycle. So even if you have a mod that is VW if the chip set is lousy you will still find yourself upping the wattage anyway. So it's not really set and forget in the same way that a really good VV is.

VV or VW both get you to the same place but a good chip set keeps you there and a poor one doesn't.

 

[mgalyan]

I can attest to the ease of use of a VW device.

I vape at 6.5 to 7.0 watts depending on the juice. 6.5 works the best for me.

My three tanks have 2.5 ohm coils, but their actual reading goes varies between 2.4 to 2.9 ohms.

In VW my iTaste provides consistent vape quality throughout and inbetween tanks.

In VV mode, I would have had to adjust my voltage between each tank .

VW mode works the best when you have similar tank/atty designs. I'm not sure that 6.5 watts would taste the same on a Min iProtank 2 as it would on an iClear 30. So in your comparision, variable wattage is not as set and forget as some people would claim. If you often change tank designs (top coil/bottom coil dual coil/single coil, plastic, pyrex, carto, clearo, tank, etc.) then VW will not be set and forget.

For myself though, I vape exclusively using MiniProtank 2's So for me, the variable wattage works great.

Is it a deal breaker? By no means. But for those of us that have settled on the gear we like, and aren't constantly tinkering with our vape gear, Variable Wattage works very well.

Ok... so I see a somewhat tangible benefit here. The main reason I ask is.. my wife and I are both using vision spinner 1300's.

I'm moving on to new horizons once my vamo arrives, but right now we are using EVOD's and AnyVape Davide's. We bought 5 coils recently that were rated at 1.5 ohm. One of them is bad ... at 4.8v, 2 of them taste burnt even at 3.3v, and the other two vary wildly upon juice.

I feel that assuming a wattage (or voltage) for a specific resistance, and expecting a consistent result is highly unlikely (due to the quality control of the device/attachment/juice).

Is it really that unusual to get that kind of discrepancy of coil quality at a given resistance (and same blister pack, lol)?

 

[DIYBrandon]

I personally think using VV is much easier... Maybe it's because I got used to it using my VV2, but now that I have my MVP, I still use VV instead of VW.

 

[InTheShade]

Is it really that unusual to get that kind of discrepancy of coil quality at a given resistance (and same blister pack, lol)?

Unfortunately that is normal. Until you decide to rewire and rewick your own coils, it is the nature of the beast. That said, once you get your vamo, you'll at least be able to see the resistance of each coil head.

It won't matter much though, it sounds like you are already adjusting your voltage to give you a good vape, expect to do the same with the vamo in VW or VV mode.

 

[mgalyan]

Unfortunately that is normal. Until you decide to rewire and rewick your own coils, it is the nature of the beast. That said, once you get your vamo, you'll at least be able to see the resistance of each coil head.

It won't matter much though, it sounds like you are already adjusting your voltage to give you a good vape, expect to do the same with the vamo in VW or VV mode.

I am very much ready to try my hand at coil building. I think I can 1-up what I'm getting from China.

Thinking about the Rocket from fasttech as a starting point. (cheap )

 

[yzer]

I've been using a 1.7 ohm carto for over a week at 7.0 watts. This is about the time I normally switch out for a new 1.7 or 2.0 ohm carto. I checked the resistance on this carto this morning and it's running 3.2 ohms. It's going downhill fast but I've been too lazy to punch and install a new carto into the carto tank. No problem. It's still vaping at 7.0 watts because I'm running VW. The Sigelei Zmax is automatically jacking up voltage as the resistance increases on the carto to provide the 7.0 watts I dialed in. If I was running VV I'd have to manually adjust voltage upward from 3.4V at 1.7 ohms to 4.7V as the carto reached 3.2 ohms.

 

[mgalyan]

I've been using a 1.7 ohm carto for over a week at 7.0 watts. This is about the time I normally switch out for a new 1.7 or 2.0 ohm carto. I checked the resistance on this carto this morning and it's running 3.2 ohms. It's going downhill fast but I've been too lazy to punch and install a new carto into the carto tank. No problem. It's still vaping at 7.0 watts because I'm running VW. The Sigelei Zmax is automatically jacking up voltage as the resistance increases on the carto to provide the 7.0 watts I dialed in. If I was running VV I'd have to manually adjust voltage upward from 3.4V at 1.7 ohms to 4.7V as the carto reached 3.2 ohms.

Didn't anticipate this scenario.

+1 VW

Your carto is really changing in resistance that quickly?

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[InTheShade]

Sounds like a plan - just do a lot of research about battery safety. Even wrapping a replacement coil for a protank or something can get you in trouble if you get a hard short. I started wrapping coils for my Vivi nova and it took me about 5 tries just to get one that would fire - I almost quit doing it. But after watching several videos on youtube and reading here in ECF, it's quite easy when you get the hang of it.

Your vamo has built in protection that helps for sure, but just do your due diligence on learning what can go wrong and how to prevent it. Almost all the information you could possibly need is right here on the ECF.

You can also find some good information about where to buy wick and wire on the forums - if you buy in bulk, each coil will cost you just a few cents and like you said, be infinitely better than any pre-wrapped coil.

Good luck mgalyan

 

[mgalyan]

Sounds like a plan - just do a lot of research about battery safety. Even wrapping a replacement coil for a protank or something can get you in trouble if you get a hard short. I started wrapping coils for my Vivi nova and it took me about 5 tries just to get one that would fire - I almost quit doing it. But after watching several videos on youtube and reading here in ECF, it's quite easy when you get the hang of it.

Your vamo has built in protection that helps for sure, but just do your due diligence on learning what can go wrong and how to prevent it. Almost all the information you could possibly need is right here on the ECF.

You can also find some good information about where to buy wick and wire on the forums - if you buy in bulk, each coil will cost you just a few cents and like you said, be infinitely better than any pre-wrapped coil.

Good luck mgalyan

TY.

I've been watching YouTube videos from pbusardo, grimmgreen, and that guy with the wolf in the background.

With the ability to test resistance on the vamo, I figure a little silica or cotton, combined with some kanthal and wrist articulation can go a long way. ☺

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[teq1800]

Ok... so I see a somewhat tangible benefit here. The main reason I ask is.. my wife and I are both using vision spinner 1300's.

I'm moving on to new horizons once my vamo arrives, but right now we are using EVOD's and AnyVape Davide's. We bought 5 coils recently that were rated at 1.5 ohm. One of them is bad ... at 4.8v, 2 of them taste burnt even at 3.3v, and the other two vary wildly upon juice.

I feel that assuming a wattage (or voltage) for a specific resistance, and expecting a consistent result is highly unlikely (due to the quality control of the device/attachment/juice).

Is it really that unusual to get that kind of discrepancy of coil quality at a given resistance (and same blister pack, lol)?

If you were to take a close look at your coils on your AnyVape BCC you would find that on TOP of one coil you might have 1 piece of silica wick, and when you vape with that coil it taste great. Then you pop out another coil from the same blister pack, vape on that one and it tasted burnt. Look closely on top of the coil and there is a good chance you will find 2,3 maybe even 4 pieces of silica wick. If you were to remove 1 or 2 of these wicks you just might have that great vape like you had with that first coil. The quality control on the BCC are sometimes...not so good. Hope this helps a little & Vape On

 

[teq1800]

You are definitely watching the RIGHT people. The Vapeing Greek is also in the top 3

 

[tomek5x]

VW is not all that in my opinion. The one benefit is, you can switch tanks and not worry about setting your voltage based on the resistance of the cartomizer. But everytime i switch i mess around with the voltage anyways depending on the juice.

 

[mgalyan]

If you were to take a close look at your coils on your AnyVape BCC you would find that on TOP of one coil you might have 1 piece of silica wick, and when you vape with that coil it taste great. Then you pop out another coil from the same blister pack, vape on that one and it tasted burnt. Look closely on top of the coil and there is a good chance you will find 2,3 maybe even 4 pieces of silica wick. If you were to remove 1 or 2 of these wicks you just might have that great vape like you had with that first coil. The quality control on the BCC are sometimes...not so good. Hope this helps a little & Vape On

Without getting too off topic, yes, I do experiment with the "flavor wicks".

So far the inconsistent nature of these coils makes it impossible to come to a general suggestion.

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