iStick 50w

[Dissonance]

Some people had asked whether the new i Stick 30 watt mod had button lock function. The answer is YES. Hold both directional arrows for a few seconds and your settings lock in place.

 

[Dissonance]

Yes I could see complaining about something if it was a piece of crap but this istick is a very nice device which was to improve the egos and other similar devices it was not made to go up against expensive models. Now the new 30 and 50 watt have made all improvements plus additional improvements and are very nice units especially for the price. Now if the did nothing with the rms and means none of us care because it works better than the rest. like I said there is no written law how they have to be made this is what sets the standards for future. You cant go by what engineers have set in stone if we did we would never have any improvements just as all the famous inventers how many times they told them it could not be done or this is the way we do it lol. If we had listened to people like this we would be living in the stone age. And I am right. Just look at some of the crap that came out of other countries I had one mod like to blow my hand off because of the flaws so if you want to attack something attack something like that believe me there are plenty.

I just got of the phone with one of my trusted vendors, not the one mentioned above, but another and was told that his first batch of 200 30 watt units had sold within the first day. I predict that the new I sticks will follow the same path of astronomical success like their predecessor and most people will love them.

 

[Joshua Iles]

I ain't heard of one failing, unlike so many other boxes I've seen reports of buttons falling off, funky screen outputs or just flat not working. Occasionally mine doesn't fire, hit it again fires right up. The button rattles, there's that. It just flat works, what more could u want?

 

[Hermit]

If it's burning wouldn't u just want to turn it down?

I want to sometimes, but it only goes down so far thanks to the non-rms!

You know what I cain't figure is I for several years now been building my protank coils at 2 ohm and with my other mods vaping at 4 volts or 8 watts anything over that I could get a burnt taste. Now usung the istick 20 for weeks I have been using the same coils at the same volts or watts with the same results.! Except I can actually go higher watts on the itstick without any burning taste. So explain that Mr. Hermit. the three devices used was the svd, Innokin itaste vv, and vamo. A frind of mine that copy's what I do said the very same thing to me. And note this IS on a full charge. After discovering this a friend at work lowered his watts because he herd that he was told he should. I asked him to up his wattage where he normally vaped his older devices and he did. Well guess what he had the same results as we did. Now I don't know if we three have isticks that have a rms means change or all this talk is just that but I do know no difference here.

Analyse it on a 'scope and I might have something to explain! Objective vs subjective and all that

 

[wally]

I want to sometimes, but it only goes down so far thanks to the non-rms!



Analyse it on a 'scope and I might have something to explain! Objective vs subjective and all that

Really are you saying it wont go down enough really. Do you even own a istick!!! because if you did you sure would not say that. And if you do own one by saying that is misleading by a long shot...

 

[Hermit]

Really are you saying it wont go down enough really. Do you even own a istick!!! because if you did you sure would not say that. And if you do own one by saying that is misleading by a long shot...

I own two of them (20W). How else do you think I posted all the 'scope traces???!!!

I do not lie.

 

[moecat]

Really are you saying it wont go down enough really. Do you even own a istick!!! because if you did you sure would not say that. And if you do own one by saying that is misleading by a long shot...

I own two of them (20W). How else do you think I posted all the 'scope traces???!!!

I do not lie.

@Hermit is not lying ... check out this thread http://vapingunderground.com/threads/eleaf-istick-compact-20w-box-mod.17063/ starting from about Page 5. A lot of discussion about the original iStick firing hotter than what shows on the LED screen.

 

[Midniteoyl]

But yet, it still works... and is cheap. I'll take that over a $200+ POS DNA that doesnt do step down in a POS poorly built box that takes 2 hands to hold any day of the week.

 

[wally]

I own two of them (20W). How else do you think I posted all the 'scope traces???!!!

I do not lie.

Then if you really do have two you do know it will go down right

 

[Hermit]

Thanks @moecat!

@wally ... *sigh*

 

[Budds]

Thanks @moecat!

@wally ... *sigh*

I Feel Ya Bro !
Lol

 

[Mazam]

Really are you saying it wont go down enough really. Do you even own a istick!!! because if you did you sure would not say that. And if you do own one by saying that is misleading by a long shot...

Well in all fairness to his point, i'm sure there were were a few people out there running ancient evod/t32 heads on their istick and feeling the 8.8w (or whatever the math comes out to be) they were actually getting ran a little too hot for their 1.8ohm setup.

 

[SusanP4]

I have been noticing it lately on mine running a Nautilus Mini. Occasionally my juice will scorch my lips. It happened just now running at 12.6W.

 

[Anson]

Then if you really do have two you do know it will go down right

No buck regulation on Istick 20.
The display may say it's down regulating but it simply isn't capable of it, don't get me wrong - it's still a great little device.

 

[richardrpsgt]

Unless they fix the funny regulation on the istick 30 there isn't enough improvement for me to pull out my wallet. That 50 though, with the double sized battery probably will. I've been wanting to move to an RTA to have control over coils and wicking material. The extra power may come in handy for that as well.

 

[Hermit]

A UK vendor is concerned that the 30W still appears to run hot

http://www.planetofthevapes.co.uk/f...s=0ae5853bce4e20bcc337bc046c440626#post654665

 

[Joshua Iles]

I do see how that can be a problem for people. For me however it is not. I'm holding my breath for the 50 if for nothing more then the extra battery life.

 

[Hermit]

The 30W (and 50W) will be interesting to analyze... seeing as they go up to much higher voltages, I'd guess that the boost part of the circuit will be switchable to more voltages than the two on the 20W version (it boosts to 4.8 or 5.5V, then cuts that down with PWM). That would mean more gaps in available power settings, if they're stil using non-RMS calcs.

It will be WTF! if they have skipped a fairly minor software tweak while producing two new models with most of the other improvements people wanted! (Although, that rim on the 30W is goofy as hell - gonna look and feel crap with my 21mm Erls, which are a great fit on the 20W - dremel to the rescue, lol).

 

[Dissonance]

This is an excellent summary of the iStick and new Eleaf Melo tank. I wanted to share it with everyone.
You can get it here now for a good price www.evape.us The i Stick works with the Subtank too.
Melo should be available soon here www.sweet-vapes.com

 

[Hermit]

First test of istick 30W regulation reveals two steps forward and one step back!

Forward: It's using high frequency PWM, with filtering.
Back: the filtering isn't enough to make it DC - there's still some error.

This is it firing at 3.0V setting...



Zooming right in...



(right click and 'view image' or similar to see full size)

True RMS of 3.383V. In terms of power, that's 3.383² / 3² = 1.271 times the equivalent wattage setting, i.e. 27% over.

Nowhere near as bad as the 20W version (which was about 90% over at that setting), but will still be noticable.

edit: BUT: see my later post, that clarifies that this is the worst case output for 3V upwards
http://vapingunderground.com/threads/istick-50w.44236/page-4#post-272216

 

[Anson]

Hermits,

do you know what frequency it's firing at?
The Evic supreme was around 100hz and the consistency of vape was very acceptable - would this be around the same level?

Thanks for the test mate!

 

[Hermit]

Hermits,

do you know what frequency it's firing at?
The Evic supreme was around 100hz and the consistency of vape was very acceptable - would this be around the same level?

Thanks for the test mate!

It's about 22 kHz; very smooth vape

I'm trying it with a Magma built to 0.8Ω, set at 4.0V, and subjectively it's just like a freshly charged mech. (Although, I don't much notice PWM anyways).

 

[Anson]

So it's higher than the Provari then?

 

[Hermit]

A lot, but then AFAIK the Provari has much better filtering.

Filtering PWM gets easier with a higher freq - can use smaller (and cheaper) components to do it. Provari has never been about either small or cheap!

 

[Anson]

So if you correctly filtered a 33.3hz mod it could output as cleanly as a top end mod but it would get pricey?

 

[Hermit]

And a lot bigger! It's not really practical at such a low freq.

 

[#princess]

View attachment 11501

Features:
4400mAh
VW – 5W to 50W in real sense
VV – 2V ~ 10V
Lowest Resistance: 0.2 ohm
Spring Connection
83mm x 23mm x 45mm
ETA: Jan 25th

found this on eciggity facebook. 4400mah seems like dual 18650, looking like a winner.

Wow. my Dovpo DT-50 is only 4000 mah. =(

 

[aldenf]

For $50, if Eleaf puts the 50W together as well as they did my 30W, it's gonna be a winner...

 

[M5amhan]

For $50, if Eleaf puts the 50W together as well as they did my 30W, it's gonna be a winner...

you can bet they will, a lot of eyes will be on this mod and they know it

 

[KillaB3E]

I wish the 50W would come out tomorrow, I'm so tired of using my puny 11w MVP with my Subtank.

 

[Dissonance]

For $50, if Eleaf puts the 50W together as well as they did my 30W, it's gonna be a winner...

Yes, it will. The 50 watt will include a plethora of advancements both technical and in external design. Redesigned fire switch moved to the side and charging port to the back. I believe that it will be a top seller around the world and make most people very happy. Only a few weeks to go

 

[Hermit]

Re the 30W...

Seems 3.0V is the funkiest looking output. At 4.0V and above, it's pretty much DC and fairly accurate. Below 4.0V it starts to morph into the 3.0V traces. Below 3.0V it's unfiltered PWM at 50Hz with a peak of 4.7V, still not using RMS calcs - 2.9V setting puts out 3.585V RMS - that's more than the 3.0V setting! These tests were done with a 1/2 full batt, so the peak on the PWM part might change when it's full, but 3.0V looks the same now as it did with a full batt.

So yeah, this is great for medium to high wattage vapers, and OK for low wattage too. Not sure who would use the PWM area below 3.0V... any sub-ohm low-wattage vapers out there?!

Still don't like the lip though

 

[SusanP4]

Yes, it will. The 50 watt will include a plethora of advancements both technical and in external design. Redesigned fire switch moved to the side and charging port to the back. I believe that it will be a top seller around the world and make most people very happy. Only a few weeks to go

The fire switch has always been on the side.

 

[Midniteoyl]

Yes, it will. The 50 watt will include a plethora of advancements both technical and in external design. Redesigned fire switch moved to the side and charging port to the back. I believe that it will be a top seller around the world and make most people very happy. Only a few weeks to go

I'm waiting on it... and then a month or so more to see whats wrong with it

 

[Dissonance]

The fire switch has always been on the side.

Yes, I know Susan. It was a typo. I got used to seeing it on the display so my brain is adjusting to the new vertical layout of the screen on the front of the new 50 watt iStick.

 

[tombaker]

First test of istick 30W regulation reveals two steps forward and one step back!

Forward: It's using high frequency PWM, with filtering.
Back: the filtering isn't enough to make it DC - there's still some error.

This is it firing at 3.0V setting...

View attachment 12506

Zooming right in...

View attachment 12507

(right click and 'view image' or similar to see full size)

True RMS of 3.383V. In terms of power, that's 3.383² / 3² = 1.271 times the equivalent wattage setting, i.e. 27% over.

Nowhere near as bad as the 20W version (which was about 90% over at that setting), but will still be noticable.

edit: BUT: see my later post, that clarifies that this is the worst case output for 3V upwards
http://vapingunderground.com/threads/istick-50w.44236/page-4#post-272216

scroll to 16:40 at 5W, is it PWM. Trying to avoid buying a SX Mini to get clean power at 6W or 3.5 volt areas.

 

[Hermit]

scroll to 16:40 at 5W, is it PWM. Trying to avoid buying a SX Mini to get clean power at 6W or 3.5 volt areas.

I think that's set to 5W, and the calculated volttage is just below 3V, but rounded up for display to 3V. Set to 5.1W, or with a slightly higher ohm coil, the trace would look more like the one I posted. Below 3V the istick 30W uses PWM, but I don't see it as much of a negative because a) it's easy to avoid that by using a higher ohm coil, and b) 3V is still less than an eGo, so I don't think it will trouble anyone.

At 3.5V it's absolutely fine, reasonably DC with just a little ripple. 6W should be fine with coils over 1.5 ohm.

If you want to use 1.5ohm coils at 6W I'd recommended using the 3V setting instead, to make sure you avoid the PWM area.

 

[Lefty]

My 50w arrived today. After putting it through the paces it seems fine and reasonably accurate. I'm happy with it at any rate. I do hope they have either redesigned the charge port when they moved it or their QC has improved. I had one of the early batches of the 20w. A couple of weeks ago I gifted it to a nephew and it's toast already. Charge port connecter came loose and fried the chip. I disassembled it and looked it over and the connecter had been poorly soldered. Happened within hours of pulling the trigger on the 50w so I guess I'll continue to treat it gently and keep my fingers crossed.

 

[VapesXO]

My 50W is awesome; I love the damn thing!

 

[tombaker]

I think that's set to 5W, and the calculated volttage is just below 3V, but rounded up for display to 3V. Set to 5.1W, or with a slightly higher ohm coil, the trace would look more like the one I posted. Below 3V the istick 30W uses PWM, but I don't see it as much of a negative because a) it's easy to avoid that by using a higher ohm coil, and b) 3V is still less than an eGo, so I don't think it will trouble anyone.

At 3.5V it's absolutely fine, reasonably DC with just a little ripple. 6W should be fine with coils over 1.5 ohm.

If you want to use 1.5ohm coils at 6W I'd recommended using the 3V setting instead, to make sure you avoid the PWM area.

Thanks for the reply. Went into a shop today and the owner had one he had pre-ordered, he was not carrying them yet in the store. Display is very nice, but hat I noticed most was the balance of the MOD, its a little uniform brick not top or side heavy. I feels very solid. The owner said it was a YiHi SX330 inside it, but I don't think I have seen specs that go down to these numbers on YiHi site. Could be a custom chip for them, don't know.

My experience with PWM is having a 33hz job. That is slow. Compared to a Sigeliei 20W SX220 clean power at 7 watts I could tell the different, and I could use higher power, because it was not cooking the juice 33 times a second.

You are saying this istick 50W is blinking at 22,000 a second? I think at that speed, its fast enough to not care. I think what is going to sell me over the 30W or the Siegeli mini or MVP3, its the height. I should be able to put it in my front shirt pocket, without the clearo sticking out above, easy stealth carry. The Siegeli mini is enough taller to go with the istick 50. Plus it looks like the chip is much better, in its regulation on the low end.

 

[Hermit]

You are saying this istick 50W is blinking at 22,000 a second? I think at that speed, its fast enough to not care. I think what is going to sell me over the 30W or the Siegeli mini or MVP3, its the height. I should be able to put it in my front shirt pocket, without the clearo sticking out above, easy stealth carry. The Siegeli mini is enough taller to go with the istick 50. Plus it looks like the chip is much better, in its regulation on the low end.

I haven't scoped the 50W yet. Must get round to it soon! But I'm expecting it's similar to the 30W. It's certainly fine to vape a mini protank with stock 2.2 ohm coil at the same settings as on the 30W, about 3.7V to match an eGo batt, and the lowest setting it allows (3.3V with that coil) is noticably weaker (as it should be).

The 30W is not even blinking (at 3V+), because instead of the on-off of PWM the output is only varying by a small amount (even at 3V, which is the worst point of its DC regulation area). I don't believe anyone could tell it wasn't perfect DC when vaping

The 30W's PWM when under 3V is useless - low speed, non-RMS - and due to that the 3V setting is the lowest power output! (But with a low-wattage vaper's coil typicially being 2 ohms or more, the 5W lower limit stays above 3V anyway).

 

[muth]

I can not believe I am still waiting on mine. So far, what I'm hearing here sounds good. Have any of you had it long enough to elaborate on how its working for ya? Is pulse width an option like on the Sig mini?

 

[moecat]

I can not believe I am still waiting on mine. So far, what I'm hearing here sounds good. Have any of you had it long enough to elaborate on how its working for ya? Is pulse width an option like on the Sig mini?

Performance is still thumbs up on my end: no over-powering, connector is holding up well so far, battery life is great (I can easily get 2 days without recharging if I wanted).

No, there is no DC-PWM switching option with this device.

 

[tombaker]

I haven't scoped the 50W yet. Must get round to it soon! But I'm expecting it's similar to the 30W. It's certainly fine to vape a mini protank with stock 2.2 ohm coil at the same settings as on the 30W, about 3.7V to match an eGo batt, and the lowest setting it allows (3.3V with that coil) is noticably weaker (as it should be).

The 30W is not even blinking (at 3V+), because instead of the on-off of PWM the output is only varying by a small amount (even at 3V, which is the worst point of its DC regulation area). I don't believe anyone could tell it wasn't perfect DC when vaping

The 30W's PWM when under 3V is useless - low speed, non-RMS - and due to that the 3V setting is the lowest power output! (But with a low-wattage vaper's coil typicially being 2 ohms or more, the 5W lower limit stays above 3V anyway).

On start Volts I don't think I have ever used less than 3.4V

 

[muth]

Performance is still thumbs up on my end: no over-powering, connector is holding up well so far, battery life is great (I can easily get 2 days without recharging if I wanted).

No, there is no DC-PWM switching option with this device.

The reason I asked is because I saw a thread with details on PWM concerning the iStick 50w. I don't even bother with PWM on my Sig mini and I hear that nobody uses it anyway. I also understand that they did away with it on the IPV mini V2. Do you have further info about that?

 

[muth]

Wow. my Dovpo DT-50 is only 4000 mah. =(

Dovpos are great. I could be wrong but I don't think you'll notice that much difference between 4000 and 4400. Correct me if I'm wrong

 

[moecat]

The reason I asked is because I saw a thread with details on PWM concerning the iStick 50w. I don't even bother with PWM on my Sig mini and I hear that nobody uses it anyway. I also understand that they did away with it on the IPV mini V2. Do you have further info about that?

I don't own the ipv, so I couldn't help you there

 

[muth]

I think that's set to 5W, and the calculated volttage is just below 3V, but rounded up for display to 3V. Set to 5.1W, or with a slightly higher ohm coil, the trace would look more like the one I posted. Below 3V the istick 30W uses PWM, but I don't see it as much of a negative because a) it's easy to avoid that by using a higher ohm coil, and b) 3V is still less than an eGo, so I don't think it will trouble anyone.

At 3.5V it's absolutely fine, reasonably DC with just a little ripple. 6W should be fine with coils over 1.5 ohm.

If you want to use 1.5ohm coils at 6W I'd recommended using the 3V setting instead, to make sure you avoid the PWM area.

Hi, Hermit. Thanks for the helpful info. My problem with regulated devices such as this is that, for me, it's too much to remember. I understand the concept of pulse width mode to a layman's degree but I don't even use it if the option is there, as on my Sig Mini. I'm waiting on my iStick 50w while my iStick 20w lays idle with malfunctions, such as: I watch the settings change on their own right before my eyes with the same atty on it. And the 510 connection needs to be pulled up in order to make contact. It's a PITA and maybe I got a lemon because most reviews have been positive. Now I hear that the IPV mini V2 will be eliminating PWM. My basic question is, do you think I'll be happy with the iStick 50w? I'm not as OCD with changing my settings as pBusardo isI like to set it and forget it (to a degree). My devices are varied and I vape at a 0.2 ohm - 2.1 ohm range. I spend a lot of time on the road and like the staying power of high mah li-pos plus the ability to charge externally. Whaddya' think? Thanks for the input

 

[Hermit]

Hi, Hermit. Thanks for the helpful info. My problem with regulated devices such as this is that, for me, it's too much to remember. I understand the concept of pulse width mode to a layman's degree but I don't even use it if the option is there, as on my Sig Mini. I'm waiting on my iStick 50w while my iStick 20w lays idle with malfunctions, such as: I watch the settings change on their own right before my eyes with the same atty on it. And the 510 connection needs to be pulled up in order to make contact. It's a PITA and maybe I got a lemon because most reviews have been positive. Now I hear that the IPV mini V2 will be eliminating PWM. My basic question is, do you think I'll be happy with the iStick 50w? I'm not as OCD with changing my settings as pBusardo isI like to set it and forget it (to a degree). My devices are varied and I vape at a 0.2 ohm - 2.1 ohm range. I spend a lot of time on the road and like the staying power of high mah li-pos plus the ability to charge externally. Whaddya' think? Thanks for the input

That's quite a wide range of ohms! I think you'd probably be happy with it. The main problem with the istick 20W (for me) wasn't that it used PWM, but that it used the wrong calculations so ran too hot. It looks like the 50W uses the right calcs when it's using PWM - so setting and forgetting should be fine (and is, as far as I can tell from using it over a 0.5 to 2.2 ohm range). But it also looks like it uses PWM with low ohm coils (0.4 ohm was tested in that video tombaker posted) - I don't know at what ohms it starts doing that.

 

[rdsok]

I believe it switches to PWM when the selected setting results in lower than 3.9v ... a low ohm coil would see that voltage or lower sooner than a higher ohm coil at a given wattage