Variable Voltage and Variable Wattage?

[deryk]

I've come to realize that either the owner of the E-Cig shop that I bought my Tesla from didn't know so much himself, or didn't really care to share.

My Tesla (and other mod manuf) offer them as VV and or VW. Last weekend someone I met pointed the vape Ohm chart out to me http://25.media.tumblr.com/tumblr_m9dkanCt0I1qc8949o2_1280.png and it makes sense why I wasn't getting great flavour because I was running in the red zone. (When I bought my Tesla I was told run it around 5-5.5 Volts and that would be good) I didn't realize that running it higher means your burning the juice. Today I downloaded an app for my phone called Ohm's Law Calculator by Coopersoft. I entered in the variable for my 18650 battery at 3.7 V, and ohms around 2.4 on my RBA atomizer and it gave me the wattage My Tesla is a 3-6.0 Volt but 3.0 to 15.0 Watt in .5 increments. 3-15 watts is a greater range.

So what is the point of VV when the ohms chart is giving you a power level in watt's to set your mod at?

thanks
deryk

Sorry for lots of questions but trying to absorb alot....I've been reading through Baditude's blogs and just so much information lol

 

[readeuler]

It's a subtle topic, and there is no shortage of posts asking very similar questions (We need a sticky: Explain VV/VW to me like I'm 5...).

My possibly-flawed understanding is that the voltage is what is directly regulated by the device, while the wattage is "along for the ride", via Ohm's law. I've seen VW devices described as a VV device that happens to have a calculator on-board. If the device is going to regulate everything using voltage alone, it might as well be an option that you yourself can adjust, not just via a wattage setting.

The wattage/voltage ranges are roughly equivalent, since Ohm's law says that voltage squared is proportional to wattage. That means that changing the voltage has a greater effect on the whole equation (if you double voltage from 3 to 6, the wattage has to increase by a factor of 4; say, from 3 to 12 watts). That's why there's more of a wattage range offered, because Ohm's law isn't as sensitive to changes in wattage, compared to changes in voltage.

I imagine that VV is used, primarily because that's what's actually regulated; VV only devices probably came first. Aside from that, when using a mechanical mod, you can only directly influence the voltage (by charging/discharging the battery), so it's good to have a feel for voltage, if you're going to ever use an unregulated device.

Either be used reliably to alter the vape experience, and they're both good to understand at some level, if you're going to play safe.

 

[BiLLi0]

I've come to realize that either the owner of the E-Cig shop that I bought my Tesla from didn't know so much himself, or didn't really care to share.

My Tesla (and other Mod manuf) offer them as VV and or VW. Last weekend someone I met pointed the Vape Ohm chart out to me http://25.media.tumblr.com/tumblr_m9dkanCt0I1qc8949o2_1280.png and it makes sense why I wasn't getting great flavour because I was running in the red zone. (When I bought my Tesla I was told run it around 5-5.5 Volts and that would be good) I didn't realize that running it higher means your burning the juice. Today I downloaded an app for my phone called Ohm's Law Calculator by Coopersoft. I entered in the variable for my 18650 battery at 3.7 V, and ohms around 2.4 on my RBA atomizer and it gave me the wattage My Tesla is a 3-6.0 Volt but 3.0 to 15.0 Watt in .5 increments. 3-15 watts is a greater range.

So what is the point of VV when the ohms chart is giving you a power level in watt's to set your mod at?

thanks
deryk

Sorry for lots of questions but trying to absorb alot....I've been reading through Baditude's blogs and just so much information lol

Then I'm a really bad boy because I mostly vape at 8W.

That chart is someone's opinion, not the rule. I made my own. You can check it here.

I don't understand your question. Some mods don't allow you to set the power.

 

[deryk]

I'm definitely confused lol. So looking at the ohms chart with a 18650 2000ma battery its 3.7 v, and a 2.2 ohm atomizer, it calls out 6.22 watts, so what would you set your VV to?

 

[Rickajho]

If you want a good vape you will really simplify this and just dump the charts.

Pick your mode: VV or VW. Start at your lowest setting and move it up until you find the flavor and vapor production you are looking for. That's it.

"The chart" doesn't take into account the design of the tank or clearo or carto or RDA you are using. "The chart" doesn't know how well your device wicks fluid to the coil. "The chart" has no clue about how you draw, the flavor components in your liquid and what level of heat works best for them, how old and gunked up your coil and wick are from use etc. etc. If you think you can just pick a fixed, alleged "set & forget" VW place and just stay there your vape experience is going to be very limited.

 

[deryk]

Billio, Im not talking about mechanical mod's. My Tesla I can set watt's and volts...several I have looked at can do both, some are VV and some are VW. But even looking at your chart, I know what the Ohms are, that is what my multimeter says my atomizer is(same as the tester and my Tesla can tell me my ohms... how do you determine your Watts at the top of your chart?

 

[jblack741]

If you have a mod that does both VV and VW and you are running a 2.4ohm coil then set you VW to about 8.5 and taste. With VW you don't have to worry about VV because the calculation is already done for you and you simply adjust VW up or down until it just taste right to you. If you want to use VV then follow the chart/program and do the same thing, adjust up/dn depending on where your taste is and don't worry about the VW. On most good units this to will auto adjust based on your selection anyway. I was confused by this when I first got started and learned the with VW it's a set it and forget it mode based on available output from your battery output. You might find this useful: PBusardo

 

[BiLLi0]

I'm definitely confused lol. So looking at the ohms chart with a 18650 2000ma battery its 3.7 v, and a 2.2 ohm atomizer, it calls out 6.22 watts, so what would you set your VV to?

For 2,2 Ohms I would set my VV to about 4,2V or above. I like 8W. Sometimes more, sometimes less. I just made my own chart because it fits my taste.

 

[deryk]

If you want a good vape you will really simplify this and just dump the charts.

Pick your mode: VV or VW. Start at your lowest setting and move it up until you find the flavor and vapor production you are looking for. That's it.

"The chart" doesn't take into account the design of the tank or clearo or carto or RDA you are using. "The chart" doesn't know how well your device wicks fluid to the coil. "The chart" has no clue about how you draw, the flavor components in your liquid and what level of heat works best for them, how old and gunked up your coil and wick are from use etc. etc. If you think you can just pick a fixed, alleged "set & forget" VW place and just stay there your vape experience is going to be very limited.

I didn't think about it that way Rickajho....so experiment with either VV or VW till i like the taste best..and it does change because I do see rise and fall slightly in ohms on my atmozer.

 

[BiLLi0]

Billio, Im not talking about mechanical mod's. My Tesla I can set watt's and volts...several I have looked at can do both, some are VV and some are VW. But even looking at your chart, I know what the Ohms are, that is what my multimeter says my atomizer is(same as the tester and my Tesla can tell me my ohms... how do you determine your Watts at the top of your chart?

I made my chart with fixed Ohms and Watts because I usually want about 8W. So when i use my eGo I can't set the power like on a mod, I have to set the voltage.

I'll give you an example. I take my atomizer X which has, let's say, 2 Ohms. I go to my chart (cause it's faster than calculating ) and check 2Ohms, 8Watts. I then know I should start my voltage on 4Volts.

 

[AndriaD]

If you want a good vape you will really simplify this and just dump the charts.

Pick your mode: VV or VW. Start at your lowest setting and move it up until you find the flavor and vapor production you are looking for. That's it.

"The chart" doesn't take into account the design of the tank or clearo or carto or RDA you are using. "The chart" doesn't know how well your device wicks fluid to the coil. "The chart" has no clue about how you draw, the flavor components in your liquid and what level of heat works best for them, how old and gunked up your coil and wick are from use etc. etc. If you think you can just pick a fixed, alleged "set & forget" VW place and just stay there your vape experience is going to be very limited.

Could not possibly have said it better if I'd tried.

Think of it this way, Deryk: if you use the variable voltage, then you'll have to adjust it for every different resistance of coil you use. If you use the variable wattage, then all you need to know is the setting that YOU prefer, for each individual juice you vape -- because juices are so variable, they all like different settings, for different people, and different flavors will emerge at different settings; a lot of juices don't like too much heat, while some juices can't even be tasted properly till you're running pretty high power. Wattage is better to use if you switch toppers, since you don't need to worry about what resistance that particular coil is; the mod will detect it and set the voltage as it ought to be for that resistance, depending on what wattage YOU prefer. It's just easier, if you're switching toppers.

The important point is: you don't set both, you choose one way of varying the power and set that; the other will be set for you, based on the setting you choose for *either* voltage *or* wattage.

Andria

 

[Sthur]

Actually the battery says 3.7v and actually puts out 4.2v fully charger. For a vv/vw device follow the chart for setting you watts.

You mostly need the battery voltage and resistance for mech because you want to know your amp draw and watts. No electronics to tell you these thing.

Some people own ego twist batteries the voltage part of the chart is what they mostly need.

Vw has more control. Lots of vw devices change in .1 watt increments. Your mod will also give good adjustments at .5

The best app us the ohms law calc with the p,e,I,r on the icon.

I hope this helps and we just want everyone to be safe.

 

[slappy3139]

VV and VW mods do the same thing, they adjust the input voltage according to what you set it too. In VV mode, the mod will fire at whatever voltage you select, in VW mode OTOH, the mod sees your wattage setting, checks your atomizer resistance, and calculates the input voltage necessary to provide the power setting and adjusts the input voltage accordingly. If it helps you to understand further, just remember that voltage and resistance are your input parameters, and current and wattage are output parameters that are determined by your voltage and resistance.

 

[Bunnykiller]

with the chipped mods, you set up the mod in either volts OR watts. In watt mode the mod automatically adjusts the voltage to get the same watts on different attys ( different resistances) In volt mode, if you change attys and they have different resistances the watts will be different. You will need to know what the resistance of each atty is to adjust the voltage to get the watts you prefer....

lets say you have a dimmer switch on the wall that controls a litebulb and you like the lite to be at 50W of power, you put a 100W bulb in the socket and the dimmer switch automatically adjusts the voltage to 1/2 to make the bulb burn at 50W. Now you want to change the bulb and you have a 60W bulb available, you put that bulb in the socket and hit the switch, the chip reads the resistance and then boosts the voltage to get 50W into the 60W bulb... you still end up with the same amount of light from both bulbs tried, but the voltage required is very different.

 

[Baditude]

 

[cadster0103]

To be honest I would stick with VW. No chart can tell you about what power settings to vape at. If you're using a tank with a factory coil it will get you close.... vaping is all about user preference. The chart does not account for single, dual or quad coild. They thickness of the kanthal you are using ( if you are using an rda /rba of course). I used to vape my nautilus at 9-11.5 watts depending on the mood I was in. Now all I vape is rda/rba and I vape at much higher watts. At the momment I am vapping my fogger 4 plus with a dual coil setup at .7 ohms cranked up to 33 watts (4.8 volts) and I must say the flavor is awesome and the vapor production is insane. When I use my kayfun single coil at 1.0 ohms I vape between 22-25 watts. Again the flavor is awesome and so is the vapor production. Ohh and I use 28 gauge kanthal most of the time, sometims I use 26 gauge. My point is, according to that chart you mention I am In the red and would burn my coil but that is not the case... I hope I was able to give a different opinion on this.

 

[deryk]

Thank you...watched about an hour of video'still I started getting an idea lol. There is a ton of information to learn. I want to vape safely... avoiding explosions at all cost lol.