Ijust 21700 + ELLO Duro Kit by Eleaf
Ijust 21700 + ELLO Duro Kit by Eleaf

Ijust 21700 + ELLO Duro Kit by Eleaf

Commercial characteristics

  • Sponsor having loaned the product for the magazine: The Little Vapoteur
  • Price of the tested product: 45.90 Euros
  • Product category according to its selling price: Mid-range (from 41 to 80 euros)
  • Mod type: Electro-Mech - Mod with electrical switch (Silver Bullet for example)
  • Is the mod telescopic? No
  • Maximum power: 80 watts
  • Maximum Voltage: Not applicable (3,9V)
  • Minimum value in ohms of resistance for a start: 0.1Ω

Reviewer comments on business characteristics

Eleaf, a Chinese brand established in Shenzhen since 2011, world famous and recognized as such in my campaign, gives us the version of the set-up tube / ato up to date, with this Kit Ijust 21700 and his Ello duro atomizer. Le Petit Vapoteur, our partner on this material, offers it to 45,90 € (excluding promo) and you will find that this price is studied to the fair.

No introduction Eleaf, a careful reading of Vapelier's magazines already teaches you the essentials, theIjust you are normally already familiar, you will nevertheless undergo the detailed litany of its technical characteristics. The latest version of the atomizer Ello Duro you are probably less well known, it is in 2th part of the magazine that you will be informed of its secrets.

This kit is available in two colors: black and metallic. The tube can be likened to a mecha, it is not quite simplicity and will not be admitted as such (full meca) in a cloud vaping contest. This being so, for our daily use, it has many advantages that you will discover in the next chapter.

Physical characteristics and felt quality

  • Width or Diameter of the product in mm: 25
  • Product Length or Height in mm: 147.75
  • Product weight in grams: 177
  • Material composing the product: Steel, Brass, Acrylic, Glass
  • Form Factor Type: Tube
  • Decorative style: Classic
  • Quality of decoration: Good
  • Is the coating of the mod sensitive to fingerprints? No
  • All components of this mod seem well assembled? Yes
  • Fire button position: Lateral near the top cap
  • Fire button type: Mechanical metal on contact rubber
  • Number of buttons in the interface, including touch areas if they are present: 1
  • UI button type: No other button
  • Quality of interface button (s): Not applicable interface button
  • Number of parts in the product: 7
  • Number of threads: 5
  • Quality of the threads: Very good
  • Overall, do you appreciate the quality of manufacture of this product with regard to its price? Yes

Vapelier's note on quality feelings: 4.2 / 5 4.2 5 out of stars

Reviewer's comments on physical characteristics and perceived quality

The mod only weighs 55gr and 125gr equipped with its battery (21700 supplied). It measures 96,8mm high, the mounted kit displaying 147,75mm long. The material used, by the weight of the vacuum mod, is more like a galvanized steel than a pure stainless steel. I'm not sure about its nature, however it is 15 / 10 thicke mm and 24,3mm in diameter.

The top-cap and bottom cap are 25mm in diameter, the latter is provided with a (negative) spring-mounted brass contact. Four degassing vents are visible on the battery side, only one on the outside.

The top-cap does not disassemble (at least not easily). It has a spring-loaded positive pin, a conventional 510 connection, and a juice or condensate drain that does not communicate with the inside of the connection, note that it is elevated from 2 / 10e mm from the outer edge of the top-cap.

At 8mm from the top of the top cap, at the top of the tube, is the metal switch, equilateral triangular shape with unevenly truncated points.

At 19mm from the top of the mod, diametrically opposed to the switch, is placed the micro USB connection of the charging module. So much for the physical and practical description of the mod, to which I will not add, the more subjective one of the aesthetics, leaving you the only judges, to the "viewing" of the following illustrations.

The atomizer ELLO Duro (clearomizer), which we describe here, is the latest version that differs from the previous ones by adding an 5,5ml acrylic tank (instead of the "convex glass tube") and a "child safety" of the top- heading we will talk about again. Mainly made of stainless steel (it is heavier than the mod without the battery!) Here are its specifications according to the tank used:

  1. Length with drip-tip without 510 connection: 50,75mm
  2. Dry weight with resistance and acrylic tank: 55gr
  3. With glass tank: 57gr

Acrylic tank:

  1. Height 20mm
  2. 5,5ml capacity
  3. External diameter to the widest 29mm

Glass cylinder tank:

  1. Height 20mm
  2. 4ml capacity
  3. External diameter 24,2mm

Its diameter at the airflow adjustment ring is 26,5mm, for 24,2mm at the junction base / mod, the maximum of the top cap is 25,2mm, and 24mm for the safety ring (closing the removable filler cap) that surrounds the receiver circular drip tip.

The 510 connection looks like brass, it is not adjustable. The air intake vents are impressive. There are three of them, each offering a 10,25mm X 4mm light. The airflow adjustment ring allows a progressive adjustment, from the maximum opening, until the complete closing.

Filling is carried out by unscrewing the safety ring and pushing the entire hood with the drip-tip, a light approximately 8mm long and a little more than 3mm wide allows all droppers (pourers) to pass without problems.

The O-rings (one in junction tank / top-cap and one in junction resistance / chimney) are in silicone like that profiled and flat of the junction of the tank and the base. Two other toric fit the base of the resistance and two to the connection of the drip-tip for its maintenance, a profiled white and reamed seal is arranged at the level of the filling light, on the top-cap. I have not found the convenient and safe way to remove the airflow adjusting ring, there must be one or two o-rings of friction and sealing, also when cleaning this part of the ato Do not use hot water (max. 40 ° C).

Functional features

  • Type of chipset used: None / Mechanical
  • Connection type: 510
  • Adjustable positive plot? Yes, through a spring.
  • Lock system ? Electronic
  • Quality of the locking system: Good, the function does what it is for
  • Features offered by the mod: None / Mod Mech, Protection against short circuits from the atomizer, Protection against the reversal of polarity accumulators, Indicators of operation, protection on and under load.
  • Compatibility: 21700 - 18650 (with adapter supplied)
  • Does the mod support stacking? No
  • Number of batteries supported: 1
  • Does the mod retain its configuration without batteries? Yes
  • Does the mod offer a recharge feature? Charging function possible via Micro-USB
  • Is the recharge function pass-through? Yes
  • Does the mode offer a Power Bank function? No power bank function offered by the mod
  • Does the mode offer other functions? No other function offered by the mod
  • Presence of a regulation of the flow of air? Yes
  • Maximum diameter in mms of compatibility with an atomizer: 25
  • Accuracy of the output power at full charge of the battery: Excellent, there is no difference between the requested power and the actual power
  • Accuracy the output voltage at full charge of the battery: Excellent, there is no difference between the requested voltage and the actual voltage

Vapelier's note regarding functional characteristics: 4.8 / 5 4.8 5 out of stars

Reviewer's comments on functional features

Mod Ijust 21700

We are in the presence of a mod mec protected, "regulated" (flanged) to 80W maximum of power delivered, also equipped with a possibility of recharging of battery, via a USB / micro USB connection to 1 Ah maximum, features missing from a pure mecha.

No power regulation or other parameterizable electronic controls, on-board electronics provide on / off functions (5 pulses to the switch for each option), a safety (shutdown) in case:

  • polarity reversal
  • short circuit on ato
  • overload or under load (3,1V) of the battery
  • exceeding 15 seconds of uninterrupted ignition
  • possible overvoltage

The range of use of the resistors tolerated by this chipset is between 0,1Ω and 3Ω. A maximum power of 80W can be supplied with the lowest resistors.

In use, your mod warns you of the remaining charge level by a led around the switch that changes from green full charge (100 - 60%) to orange (59 - 30%) then to blue (29 - 10%) (From this moment the duration of the puffs will be shortened) and finally to red for less than 9%, it is then time to recharge or replace the battery.

In this regard, we do not recommend that the Vapelier recharge the batteries via USB on a computer. Prefer a good phone charger or a dedicated charger, being careful not to exceed 1 Ah.
The battery provided here is an 21700 * brand Avatar, AVB lithium 4000mAh 3,7V and 30A CDM **. If you need to get a second battery, make sure that it is High Drain and that it is at least 25A, for use with minimum 0,15Ω resistance. For the purists, below, a table of the specifics of this accu in English.

Knowing that for a full meca full load, the voltage is 4,2V, a resistance of 0,1Ω will impose 42A discharge to the battery for 176,4W theoretical, (39A 3,9V and 152,1W) as much tell you that the battery is not going hold the day. Here, for this resistance value (0,1Ω), the electronics will let 80W pass for a CDM of 28A and only 2,8V, so in the safety range for the lifetime and expected performance of a battery of this type. The resistances of the clearomizer ELLO Duro have a minimum value of 0,15Ω, at 80W the imposed discharge capacity is 23,1A for 3,46V, we are always in the security values.

Your package contains an 18650 *** battery adapter that will provide the same services, but with less battery life than an 21700.

We went around the beast, I spared you the meaning of multiple flashes of light (up to 40!) According to the various security reasons already mentioned, programmed by the designers ofEleafyou will find the precise description in the instructions and in French. Anyway, by steaming, you can only see them in front of your mirror and by switching with the little finger (good luck for the maneuver).

* 21700 international conventional correspondence: 21 = diameter in mm - 70 = length in mm - 0 = cylindrical form.
** CDM: Maximum Continuous Discharge Capacity, (here 15 maximum, value expressed in Ampere (A).
*** Your 18650 battery must offer a minimum CDM of 25A.

ELLO Duro Clearomizer

As for all clearomizers with proprietary resistors, they are the ones that will make all the difference, in terms of taste and / or steam production. This model has no bell or heating chamber, everything goes from inside the head (head in Chinese) and goes directly along the chimney 17mm to the base of the drip-tip, add 15mm to arrive until to your mouth.

The proposed heads are both mesh, a type of resistive you can appreciate the design on these photos.

The HW-N2 0.2ohm Head (black O-rings) is suitable for a power range between 40 and 90W depending on the manufacturer, with an optimum range between 60 and 70W.

The HW-M2 0.2ohm Head (red O-rings) has the same power values, only the mesh design differs. Our mod adapts to these values ​​and we can not modulate the power, these indications remain however useful, if you use with this ato, with a regulated box with adjustable power and parametric temperature control, both have a resistive in Kanthal.

There is also the HW - M to 0,15ohm, this will be the minimum resistance value possible with this kit. The Small Vapoteur holds at your disposal the series of resistors HW here , compatible with this atomizer and here is a list in image.

The Drip-tip Acrylic 10,5 measuring mm high (not counting the 810 connection) for 16mm in diameter and a useful bore of 8,3mm of inlet diameter (top-cap) and 13mm to the mouth, even as we find a chimney outlet of only 6,75mm in diameter. It is pleasant on the palate and comes in aesthetic coordination with the 5,5ml tank, also in acrylic.

Evaluation of the packaging

  • Presence of a box accompanying the product: Yes
  • Would you say that the packaging is up to the price of the product? Yes
  • Presence of a user manual? Yes
  • Is the manual understandable for a non-English speaker? Yes
  • Does the manual explain ALL features? Yes

Vapelier's note on packaging: 5 / 5 5 5 out of stars

Reviewer's comments on conditioning

Your kit arrives in a cardboard box, rigid white, surrounded by a cardboard finer in which it fits. An authentication number is to be revealed on the outer packaging (the QR code sends you to the website ofEleaf for verification).

Inside, two floors of semi-rigid foam perfectly protect the mod and the ato on the upper floor and accessories below.
Here is in detail the contents of the package.

  • 1 against Ijust 21700 (equipped with his battery)
  • 1 atomizer ELLO Duro (mounted with 5,5ml acrylic tank and a HW-M2 0,2 ohm resistor)
  • 1 USB / micro USB cable
  • 1 cylindrical tank of 4ml
  • 1 O-ring and profile bag
  • 1 battery adapter 18650
  • 1 resistance HW-N2 0,2 ohm
  • 2 user manuals in French for mod and ato.

It's complete and functional, I have nothing special to add.

Appreciations in use

  • Easy transportation with the test atomizer: Ok for an external jacket pocket (no deformations)
  • Disassembly and cleaning facilities: Easy, even standing in the street, with a simple tissue paper
  • Easy to change the batteries: Easy, even standing in the street
  • Did the mod heat up? No
  • Has there been erratic behavior after one day of use? No

Vapelier's note in terms of usability: 4.5 / 5 4.5 5 out of stars

Reviewer's comments on the use of the product

For a few years now, Asian consulting firms have been working hard to innovate their consumable resistances. Eleaf comes with these models HW - M and N, to place a new concept they call Leakage-Proof & Self-Cleaning (LPSC) technology, which can be translated by anti-leak technology (juice and condensation) and self -clean, which would regulate at once the main disadvantages of these products, namely, leakage and fouling more or less rapid but inevitable, meaning their end of life.

To say that this innovation is effective in terms of leakage is possible, but in terms of self-cleaning, I remain skeptical. While the mesh design has greatly improved the taste quality of the rendering, it has also contributed to a longer use than the conventional windings, Eleaf It is necessary, however, more time and material to appreciate and compare these resistances among them, to determine scrupulously the characteristics, in conditions of identical vape, in order to confirm you or not the different benefits touted by brands.

Another feature improved with these heads: the behavior of airflow admitted through the airflows, through these resistors and there, I must say that it is successful, you will all the better manage your vape at all levels (taste and cloudy).

Well, it's nice all these technical details, but it will be time to jacer vape because good! A little glance anyway to the concept of cotton weft used in these resistors.

Good responsiveness of the mod switch, no calculations to perform or screen to feed, details that also play on autonomy in the long run.

The clearomizer with the HW-M2 (0,2Ω), the airflows open to the maxi, vape very well. One might think that with such an opening of air intake vents, the vape is more aerial without any feeling of constraint but this is not the case. If you pull quietly, RAS; but if you go frankly, then you will find a resistance to the passage of the air, it is related to the multiple lights crossing the positive pin of the resistance, to the convolutions imposed to the flow of air and, especially, to the bottleneck of throttling that is the diameter of the chimney flue of 6,5mm.

This finding is not embarrassing in itself and does not affect the taste. On the contrary, this period of re-pressurization of the emulsion contributes to homogenize it. I noticed that the airflow adjustment becomes effective from the middle position, towards closing. Beyond this position, the difference in rendering is not obvious (the juice tested is very powerfully dosed in flavors: 18%).

The taste is very honorable, precise and ample, it retains the intensity that you get with a good dripper. All open, the vape is lukewarm / cold and the ato warms moderately if you shoot often without prolonged interruptions.

The production of steam is also at the rendezvous, for a rather moderate consumption (6,5ml in the afternoon by shooting more than 4 seconds at a rate of reviewer).

Autonomy is also largely in the spotlight with this type of battery. By vaping cushy, you can count two days without reloading, with this assembly.

Over a period of three days, I found no leakage or taste alteration due to early fouling. I tested this material with a fresh colored 25 / 75 (PG / VG) slightly colored (ONI of Flavors & Liquids).

In summary, you have a good margin of airflow adjustment to adapt your vape to this mecha kit, you will not consume excessively and almost twice as long as with a tube 22 and 18650 battery.

Recommendations for use

  • Type of batteries used during the tests: 18700
  • Number of batteries used during testing: 1
  • With which type of atomizer is it advisable to use this product? Dripper, Dripper Bottom Feeder, A Classical Fiber, In Sub-ohm Mount, Genesis Rebuildable
  • With which model of atomizer is it advisable to use this product? Ello Duro
  • Description of the test configuration used: Ello Duro resistor HW - M2 (0,2Ω Kanthal)
  • Description of the ideal configuration with this product: the kit as is is perfect

was the product liked by the reviewer: Yes

Overall average of the Vapelier for this product: 4.6 / 5 4.6 5 out of stars

The mood ticket of the reviewer

Let's take the main features of this kit. It is a tube with its clearomizer, a little less than 15 cm high, which weighs, equipped and filled, barely 180g, quite light and compact therefore, suitable for all handcuffs. Supplied with an 21700 battery, a spare tank, 2 resistors, an adapter for 18650, a charging cable, 2 notices in French and a spare bag of seals, all for less than 50 €. A kit resolutely cumulus oriented, without leaving aside the pleasure of savoring your juice, and this over two days, without recharging the battery. It is aimed at both old and newcomers in the vape, as it is simple to operate and also allows a quiet vape in safety.

Frankly it's a good deal, the quality of vape is more correct, without worrying about some tedious settings, you can adapt your recent atos on this mod, flush 25mm diameter. Le Petit Vapoteur offers you a large choice of resistors and tanks compatible with this atomizer, this monitoring of the proposed product is a guarantee of professionalism and respect towards its customers, as well as the speed of delivery and the efficiency of the after-sales service.

It is not my practice to promote a particular distributor, but in this case it is a whole (product and sales brand) that can make a big difference to your choice of purchase.

If you have questions or simply want to share your opinion on this kit, take a few moments to do this, via your comments area, I wish you a good vape and find you very soon here.


(c) Copyright Vapelier SAS 2014 - Only the complete reproduction of this article is authorized - Any modification of any nature whatsoever is totally prohibited and violates the rights of this copyright.

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About the Author

58 years, carpenter, 35 tobacco years stopped net on my first day of vape, 26 December 2013, on an e-Vod. I vape most of the time in mecha dripper and make my juices ... thanks to the prepas of the pros.