Jessy "S" E-Cigarette Review.....

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cozzicon

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What do they put out on the multimeter? Would be interesting to see what defines high and low voltage. Thanks again for a great review and showing me devices that I have never even heard of :)

Neon

I did make an attempt with a digital meter. Sadly, this unit uses PWM (Pulse Width Modulation) for voltage control so a digital meter will not work (this has to do with the frequency of the pulse). I will at some point get an analog meter hooked up to it, however that will not be accurate. What I need to find is an oscilloscope.

Finding an oscilloscope might take a little time.
 

cozzicon

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Is it actually variable with more than just a hi & low or just those 2 different voltage settings

Just high and low.

The manual calls it: "Strong"" or "Mild"

Since the unit appears to use PWM, a digital meter failed to register a voltage. At some point I'll try an analog meter. But what I really need is an oscilloscope to get a picture of what is going on.
 

cozzicon

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Hi Michael,
thanks for posting.
Interesting unit.
Might it be that the hi-low switch do change the unit status from regulated 3.2V to an unregulated battery?

Hmm... well this is a guess at this point.

Perhaps... but more likely it is making a true voltage change. Since we can assume the battery is probably no stronger than 3.7 volts, it's probably a voltage drop. How PWM fits into that is an unknown. I need to find a bit of test equipment still.
 

cozzicon

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Update:

The future Canadian vendor for these left this information for me:

"I have done some research on the Jessy and this is a Variable Frequency device, not true VV. Your "S" model is 3.7 volts on high and 3.5 volts on low. The Jessy X and Jessy M have 3 settings (3.7, 3.6 and 3.5) and though it is only a .1 volt variance, the frequency output changes and so does the flavor and vapor. "

So as I suspected there is a good bit of PWM going on with this unit.
 

Ande

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Just tried this one in a shop. (I'm in Korea)

It's a SWEET toy. The voltage change makes a real difference, so there is something (PWM?) besides just a .1 volt shift going on.

Overall, really well made, good vapor. The USB passthrough under the endcap of the one I tried is also an excellent touch. So is changing the LED color to let you know whether you're on "high" or "low."

They didn't offer a tank system of any kind in the shop I was in, but recommended using "tank carts." (The kind with polyfil at one end.) The guy gave me a couple of their tank carts as a promo, and the one I'm using on my 510 right now works great.

Best,
Ande
 

cozzicon

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I saw something about this having "ultrasonic" cleaning of the atty after every 300 puffs. Whats up with this? Works good, or just something for show that sounds neat?

No idea yet. Or of it's effectiveness... or if it is actually a claimed capability.

I've heard similar things as well. But I have not found a source for the larger batts with three volt/frequency settings.
 

Ande

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I've just been looking at the website for the Canadian vendor who sells these- no mention of automatic cleaning. And I presume they have the manual, so I'm gonna say that is NOT a feature. Shame, but I can't see an easy way they could include it.

I wonder if there's been a lost in translation moment. Happens a lot round here.

Ande

PS- I saw the X unit in a shop in Busan where they happily demo'ed it for me, never mentioned cleaning. But lost in translation is NOT new to me- my Korean is pretty rough, and the English in most of these shops is worse.
 

dattmavis19

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I just saw it mentioned in a thread in the classifieds forum, someone who was selling one. I asked her and she said it was something similar to the ultrasonic cleaners you use for jewelry, the way it worked. Idk though, don't know if she got it out of the manual or what. Whats the URL for the Canadian supplier though? I'm real interested in these.
 

DonDaBoomVape

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I just found out that FSUSA has the exclusive on these.
I just checked out the FSUSA webpages for these: $80 for the 400 mAh Jessy S (the one you reviewed, right?) ... $90 for the 650 mAh Jessy M ... and $110 for the 900 mAh Jessy X. Indeed, the M and X have three "atomization level" settings: 3.5V, 3.6V, and 3.7V. The S just has 3.5V and 3.7V. The M appears to be just fatter than the S; the X appears to be longer and fatter.

JessySMX.jpg

Rather pricey for fat batts, but if those subtly different voltage settings do deliver two or three markedly different vaping experiences, it may be worth it.
 

cozzicon

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I just checked out the FSUSA webpages for these: $80 for the 400 mAh Jessy S (the one you reviewed, right?) ... $90 for the 650 mAh Jessy M ... and $110 for the 900 mAh Jessy X. Indeed, the M and X have three "atomization level" settings: 3.5V, 3.6V, and 3.7V. The S just has 3.5V and 3.7V. The M appears to be just fatter than the S; the X appears to be longer and fatter.

JessySMX.jpg

Rather pricey for fat batts, but if those subtly different voltage settings do deliver two or three markedly different vaping experiences, it may be worth it.

Well, like I mentioned in the review it's a pretty subtle difference. The Canadian supplier said there is a difference in frequency as well as voltage. Unless someone can hook it up to an oscilloscope (can't find one for a test where I live) there's several unknowns.

The unit in my and Steeljan's review are both "S" models with two voltage settings.
 
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