will this make the MVP obsolete?

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sonicdsl

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Question for those that have one:

Does the wattage change when you change the ohms of the atty?

I believe all the VV/VW devices I've seen don't operate that way.

Normally, VW devices check the ohms of the atomizer and adjust power to provide the set wattage to that atty. VV puts out that voltage (and power) to whatever topper is put on top, regardless of ohms.

I noticed this on the 3 minute first look video and am wondering if I mis-interpreted her point. If so, it doesn't have one of the most useful features of VW, IMHO.

It doesn't stop me from wanting one. :)



Power is limited at 5.4v, so depending on your atty, your max wattage is limited by the resistance of the atty (still maxed at 5.4v).
 

zoiDman

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Power is limited at 5.4v, so depending on your atty, your max wattage is limited by the resistance of the atty (still maxed at 5.4v).

Yeah... When people see a Watt Range for a Device, they should Also look at what the Output Voltages Range.

Because as you mentioned, it All Starts with the Volts.
 

zoiDman

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So -- Does it maintain the set wattage, as long as the math is within the output voltage range?

It Should. And that is Exactly the Concept.

The APV Measures the Ohms of what is Attached. Does a Quick Ohms Law Calculation. Then sets the Voltage to give you the Watts you asked for.

If the Voltage Required is More than the APV can Output, Most APV just set the Voltage at the Maximum and then Don't tell you anything. So you Might Think you are at 20W or 30W, but you Really Are Not.

It Appears that the iStick is Designed to Display what you are Actually Outputting. Which I Like. And that is why on one of the Videos I saw, the Watts wouldn't go any Higher than 17W.

Because 20W @ the Ohms the person was using would have Exceeded the Max Output Voltage. Hence, pushing the Amps into a Unsafe Range.

Watt Limits is All About Protecting the Device from Itself. And Not Letting the Device try to Exceed what a Batter can Safely Do.
 

peraspera

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Power is limited at 5.4v, so depending on your atty, your max wattage is limited by the resistance of the atty (still maxed at 5.4v).

The specs show 5.5 volts max rather than 5.4 volts. Going from the published specs I did a chart showing what wattage will be within voltage limitation specs for builds from 1–3 oHms. Having a visual makes it easier for me to get my head wrapped around any given device's regulated play space.

When asking for more power than the iStick can provide it appears as though it provides as much power as possible and reflects the the actual power being provided on the screen. I don't have mine yet and haven't seen comments on what it does if you set the power lower than specs. Could someone let us know what happens in that case?

The underlying calculations for the chart are in this Google spreadsheet. Using oHms law it shows how voltage specs limit wattage ranges for any given build. To save a copy for yourself to modify for other regulated devices choose File > Download as from inside the Google spreadsheet itself rather than your browser's menu. The colors on the spreadsheet are done with conditional formatting that matches voltage spec limitations.

iStick_regulated_range_zps55e02fc7.jpeg
 
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zoiDman

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The underlying calculations for the chart are in this Google spreadsheet. Using oHms law it shows how voltage specs limit wattage ranges for any given build. To save a copy for yourself to modify for other regulated devices choose File > Download as from inside the Google spreadsheet itself rather than your browser's menu. The colors on the spreadsheet are done with conditional formatting that matches voltage spec limitations.

iStick_regulated_range_zps55e02fc7.jpeg

Very Cool Chart peraspera!

It is a Great Graphical Representation of how the High/Low Output Voltages define the Wattage Range for Any Given Resistance.

BTW - Cool Font Also. Do you know the Font Name by any chance?
 
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gerrymi

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Perfect for pocket or purse. Just slightly wider than a bic lighter. I just did the preorder for another one. These are way better than the MVP IMO Button placement is better and it has a much better feel in the hand. Not to mention that it hits like a freight train.

I realize it's dimensions are smaller than the MVP2.

How about the weight? Is it noticeably lighter than the MVP2?
 

RIMP

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my kitty MVP next to blue Istick and Black Little Sister (see classies:) I can't express how much better the button placement is on this mod vs mvp. It just feels soooo good in your hand :) One side of the mod is curved, the other side where the fire and adj buttons are is flat. Love it:vapor:
 
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peraspera

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Very Cool Chart peraspera!

It is a Great Graphical Representation of how the High/Low Output Voltages define the Wattage Range for Any Given Resistance.

BTW - Cool Font Also. Do you know the Font Name by any chance?

Thank you for your kind words. I'm so pleased that you found my little chart useful. Hope some others do as well.

I used Arab Brushstroke for all the text except for the bar labels which are Helvitica bold.
 

zoiDman

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Thank you for your kind words. I'm so pleased that you found my little chart useful. Hope some others do as well.

I used Arab Brushstroke for all the text except for the bar labels which are Helvitica bold.

The Chart to me is a Good Example of a Person can go on and on Explaining with Text about what is Happening, whereas 1 Chart Sums it All Up. And gives a Better Overview that a Page full of text.

A Picture is Worth 1,000 Words.
 
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zoiDman

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my kitty MVP next to blue Istick and Black Little Sister (who is for sale :) Kat?) I can't express how much better the button placement is on this mod vs mvp. It just feels soooo good in your hand :) One side of the mod is curved, the other side where the fire and adj buttons are is flat. Love it:vapor:

That was my Only Gripe about the MVP when I got it. The Button was Too Flush. And it was Hard for me to get my Fat Thumb to press it Down.

I Fixed Mine by Super-Gluing a Small Rectangle of Rubber to the Button so that the Button stuck out about as much as on my Provari.

That made it Possible to use the Side/Edge of my Thumb to press the Button. And Holding it then became Completely Natural.
 

RIMP

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I would also add that I've used/held a vapor shark dna20. This in the form, size, ergonomics and display blow the vs out of the water in my estimation. It's like someone who actually vapes designed this and did it well :)


for ex. vaping a 1.5 ohm coil at 8.5w shows 3.5v. If I bump it up to 8.7w the volts read 3.6, 9.2w=3.7v on display :)
 
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