LMC 200W TC Box Mod (fabulous Versions) on Sale! Get 10% more Off+ Free Shipping!


Here comes the new version of LMC 200w box mod! Sold Exclusively at Urvapin now!

Limitless company is making great efforts to forge its products to be more stylish with good performance!

Since its debut in the ecig market, Limitless 200w box mod has received good fame due to its unique design of the replaceable plates. To satisfy the buds of different customers, Limitless company makes a second release with more fabulous versions. Various plates are available now at Urvapin!

Usage experience please refer to https://www.urvapin.com/blog/usage-experience-of-limitless-200w-box-mod-great-usability/

Use coupon code 10 Urvapin to get 10% off on Limitless 200w box mod at Urvapin!

Shop it now! Free shipping all over the world!

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What is Mech Mod?

Mech mod (short for mechanical mod) has long been extolled as a vaping toy to the experienced vapers exclusively. Why is that? What is mech mod? Do you really know about it? Here I would like to talk about the mech mod with you guys.

Mech mod adopts the completely mechanical structure and is usually a cylinder. To make it easy, mech mod is a conductor for installing atomizer, battery compartment and a mechanical switch. The power supply capacity totally depends on the current voltage output.

In the light of 510 connector on the top, mech mods can be sorted into two parts:

  1. The 510 connector connects directly to the positive pole of the battery: There is no connection parts in the 510 connector. When you screw in the atomizer, the connecting point of the atomizer to the positive pole will connect directly to the positive pole of the battery.

The advantage of such structure lowers the length of the electric circuit and lowers the power consumption, making the current output more smooth (the so-called violent output) and the length of the mod much shorter.

The 510 connector connects indirectly to the positive pole of the battery: There is usually connecting parts in the 510 connector for conducting the electricity. When you screw in the atomizer into the 510 connector, the atomizer will connect the connecting parts first and then connect the positive pole by the connecting parts.

The advantage of such structure is its safety. Besides, it is of more compatibility to the atomizers and can match the atomizers with a elastic electrode at the bottom and lower the possibility of short-circuit starting directly from the 510 connector.


At the very beginning, the material of the mod is usually made of copper or brass. However, in recent two years, there appeared many mech mods made of many other materials, for example, space aluminum, stainless steel, titanium alloy pure silver and etc.

The different materials have a direct influence on the using mech mod. Since the electricity conductivity (namely the resistance) of different metals varies, the metal of high resistance will have a consumption when the current goes through.

Thus, here I will sort the metal in order based on their electricity conductivity for your reference: 1. Silver   2. Copper 3. Bronze  4. Aluminum  5. Stainless Steel  6. Titanium Alloy

B. Appearance

The diameter of the mech mods in the market can be roughly sorted into 22mm, 24mm, 29mm, 32mm. The most common ones are the 22mm and 24mms.

When the vaper is purchasing a mech mod for an atomizer, they should choose the mech mod of the same diameter as the atomizer. Or you will come into an embarrassing situation: look, he is holding a microphone!

However, the overall appearance is of various forms, such as the hollow shell, the twisted shell, painted shell, concave shell like a slender waist, changeable tube, resin tube, staypak tube. It is just countless!

The various appearance is the top reason why the vapers love mech mods so much. (Who would not like nice look!)

  1. Major parts and how to choose a mech mod

The structure of mech mod is truly simple. But what can best proves the manufacturing technique is the switch at the bottom.

The manufacturing technique of the switch at the bottom is one of the key factors to measure a mech mod. The structural design and the manufacturing technique determines the safety and using comfort level of the mech mod.

Personally, I think only a switch with the following features can be regarded as well designed, automatic-lock (concave design), comfortable elasticity, self-adaption spring for the battery (to ensure the battery to stay stable in the battery compartment and has a function of insulation), the contact of the battery negative pole is wide and flat with a round edge (to avoid the electric arc to break down the battery), easy for disassembling.

Apart from that, other factors to determine the good performance of a mech mod also include insulation design inside of the battery compartment and the pressure releasing holes (need enough space for air circulation ).

Before the explosion of 18650 battery, the liquid in the battery would boil and produce a large quantity of gases. When the gases erupts, you will also see the electric arc and sparks.

As the pressure in the battery becomes heavier, the speed of eruption cannot catch up with the growth of the inner pressure, thus, the battery explodes.

At this moment, if the mech mod is well sealed, the speed of the pressure accumulation and heating will be intensified (thermal energy accumulated), the battery will explode in advance. The pressure releasing holes are for releasing the gases erupted from the battery,  prolonging the time of explosion and giving the vapers a much longer reaction time ( to avoid danger).

The insulation processing inside of the battery compartment can avoid the using risks when the battery skin is broken accidentally.

D. How is the actual usage experience of the mech mod?

Then what is the special points of mech mod’s output? Why vapers are flocking to it?

From my experience, the degree of mech mod’s violent output is way too lower than that of the VV(variable voltage) mod. But the stability of its output is good for sure. Except that the voltage of the battery is descending continuously, the overall output of the battery is not fluctuated.

In the light of taste, it is smooth and soft with little uncomfortable feeling.

In summary, mech mod has always been thought as an exclusive vaping device only for the experienced vapers.  This is not true. If you want to use mech mod, you should have a good knowledge of it. After you have a good knowledge of its working principles,  then you can use the mech mod safely. Here I want to say: The mod will not explode, but the battery.

Let’s sum it up. The first point is the material. The lower the resistance, the better it will be. The second point is the switch. Check if its workmanship is excellent, if it’s convenient and comfortable for operation. Besides, you also need to check its safety and if it’s easy to be touched by mistake. Thirdly,  check if there are pressure releasing holes and insulation settings.

If a mech mod have all the advantages above, then it will be pretty safe mech mod with violent output.

If safety matters are paid attention, then any vapers can well hold this beautiful but dangerous vaping device.

Recently, Vgod has released its another mech mod named Vgod Elite Mech Mod.

It’s pretty a good choice for vapers who would like to try on mech mods.  With its spring-loaded switch, it’s pretty convenient for using.  Mind its diameter when you choose the atomizer for it!

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Aspire Breeze Review—A compact Kit for new or light vapers!

The most impressive advantage of Aspire products to me has always been their quality. For this time, the newly released Aspire Breeze AIO Starter Kit is of no exception. Let’s take a look at this all-in-one starter kit.

It’s made of aluminum alloy with solid quality. With its compact and ergonomic design, I’d really love to take it around.

In addition to its simplicity and good looking in design, Aspire is also made easy in its structure. After disassembling it, you can find that the complete detailed components include drip tip protective cap, drip tip, chimney unit and atomizer and built-in tank. The unique design of fire button is convenient for you to feel it.

It’s quite easy to vape on it, but before it, you need to get off the drip tip protective cap. One of the points that makes it different to the other kit is that when you vape on it, you don’t have to press the fire button, and you can take your draw directly. But if you are a vapor-chaser, then you press the fire button to produce more vapor with much speed.

To fill in the tank, you will need to pull the drip tip off and then the coil. Don’t pull the coil directly. If you check the drip tip carefully, you will find there is a little metal bar at the bottom of it. Insert the metal bar into the slots of the coil and screw it, then pull the coil out to refill it. Mind the red line when you do the refilling! Don’t overfill the tank but just to the red line. The glass window of the tank is pretty convenience for you to check the liquid.

When you press the fire button, the battery starts to drain and the color of the led light in the glass window will change according to the battery capacity. If your battery capacity is above 3.8v, the color will be purple (maybe blue and orange); when your battery capacity is between 3.4v and 3.8v, the color will be blue only; when your battery capacity is below 3.4v, the color will be orange only, and if you press the fire button or take a direct draw, the light will flash several times in orange to remind you to charge your battery. Aspire Breeze kit comes with an exclusive charging dock(will be in stock soon). When the charger is connected by the micro-USB to the power source, its left indicator will be lighted in red color  and when you put the Aspire Breeze onto the charger, it will start to charge directly. Pay attention not to put the kit in a reverse way.

Personally, the automatic draw function without pressing the fire button is convenient for vaping. And with its 2ml juice tank and 650mah battery capacity, this Aspire Breeze AIO Kit is designed more for the new vapers or light vapers. One defective design is its round bottom. With it, you can hardly erect it on a horizontal plane and it will easily fall thus spoiling the liquid when do the filling. Any way, if you are a smart vaper, you can solve this problem with some objects, for example, the charging dock.

If you are a new or light vaper looking for a device to try on, Aspire Breeze AIO Starter Kit will be the best choice. It comes in four colors, red, blue, grey and black. Carry it around and vape on!

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Smoant Battlestar RDTA Review

Check this review out to know how does the innovative Smoant Battlestar RDTA perform!

As the last category of atomizers, RDTA combines the strengths of RDA and RTA. Though its structure is brand new with innovations, the early techniques and experiences are under developing with critical defects, thus indirectly restricting its quantity in the market. After a while, several manufacturers released RDTA again. Then how has this Smoant Battlestar RDTA got rid of these critical defects? Move forward!

The atomizer we are going to talk about here has the same name as Smoant Battlestar Mod. It is the matched atomizer of Smoant Battlestar mod, even the colors are also the same. I don’t know if the manufacturer will release the Smoant Battlestar Kit.


It adopts the popular drawer-styled package and inside of it, it’s a square-shaped paper box. In the box, there is a tank, a glass tube and a pack of spare accessories.

Content List: Battlestar RDTA*1, Product Structure Card*1, Product certificate*1, spare glass tube *1, spare accessories pack*1 (4*spare screws, a set of rings, 1*screwdriver)


Its top cap and drip tip are made of black heat-insulation materials with yellow-colored atomizer tube. There are two air flow holes facing each other on the tube. Moreover, there is also printed with characters “Battlestar RDTA” on the tube, and on its opposite side, there is engraved with a skull pattern.


  1. Size: 24.55mm*38.5mm
  2. Capacity: 4.5ml
  3. Spacing width between the electrode posts: 17.5mm
  4. Material: 304 stainless steel+ quartz glass tube+ PEEK material
  5. Easy for cleaning and all the components can be disassembled.
  6. Adjustable airflow system

Below the atomizer tube, it is the e-liquid glass tube. There is printed with the unrecyclable sign “CE”.  The adjustable 510 electrode of this atomizer makes it suitable for all the mods with 510 connector.


It can be disassembled into 6 parts in details (excluding the electrode screws): drip tip, inflow adjustable cap, atomizer tube, filling ring, e-liquid glass tube, electrode deck and base.

–Disassembling Analysis–

The drip tip on the top is made of heat-insulation material and its insulation effect is excellent. The inner diameter of the drip tip is 11.5mm. Airflow can go through it enormously,  thus reducing the drawing resistance and increasing the flow rate of the air. Two rings on the drip tip ensures the sealing between the drip tip and top cap is tight enough.

The top cap is also made of heat-insulation material. The top of it is processed specially with six passivated file finishes, making its shape very similar to a dodecagon and the operation of adjusting the airflow hole much easier. Inside of the top cap, there is a dome design which can compress the air on the top in some degree and thus improving the flavor. At the lower part, there are two inflow holes on both of the two  inflow blades with which vapers can experience a dense flavor of small inflow without need to do precise operation.

The carved pattern on the atomizer tube is processed finely. Through testing by metal scratch, the wear resistance ability of the paint is pretty good and its workmanship is excellent. There is no obvious flaws on the glass tube.

The electrode base is in U shape with two posts and four holes. The base is cross-shaped with four U-shaped holes at both sides . Surrounding the base, there are the threads for installing the filling ring. Only after installing the filling ring, the U-shaped holes surrounding the electrode base can be closed, thus forming  the filling holes.

The glass tube is fixed by the filling ring and the base and is sealed by two L-shaped rings. When disassembling the filling ring, the tank will stay on the base steadily.

–Actual Operation–

Choose a wire of proper length to twist it into coils.

The electrode posts is featured with dual posts and four holes. In the situation that the coil is not long enough to reach the spacing distance of the two electrode posts,  for better installing the coils, you will need to bend the coil ends.

Use tools to bend the coil into the shape showed above (the tool I use is the handle part of the tweezers.)

Bend the coil preliminarily and then make measurement where to bend the coil.

Bend the coil after measurement.

Try to make sure you bend the two coils the same shape and length.

When finishing bending the coils, then you can bending them. From the picture above, you can see the spacing distance is just right. With the coil bent, you can install them easily and the adjustment of the coils also become much easier.

Some vaping friends keep asking how to adjust the coils when burning them.  My summary is in a few words, clamp, pull, lift, press, scratch and drag( dragging can help solving the problem of short-circuit)

After burning, then you install the cotton.

Choose cotton of proper thickness. Pinch one end tightly and thread it into the coil (note: if you feel big resistance when threading the cotton, you just stop there. Or you may snap the cotton, even worse the coil will be deformed heavily. What you should do is to make the cotton much thinner and then thread it into the coils)

Cut off the needless part of the cotton, especially the part that you have pinched tightly when threading it.

Make the cotton end loose. You can flip it and then use the point of the tweezers to prick the end.

Clam the cotton end with your tweezers and plug it into the  liquid-defecting  slot.

Make the cotton fluffy for better blocking the liquid deflecting holes.

Power on the mod and start vaping!

Problems found in using:

Since it’s a new tank, the top cap and the atomizer tube are connected too tightly and the damping is too strong, it’s pretty difficult to adjust the air normally. If you coat some liquid at the ring, it can relieve the tightness. After using for a while, the two parts will be running in gradually and can be easily for adjusting the air.

The filling ring is also very tightly connected. When you first disassemble it, you need to make efforts. Badly, I  have assembled it so tightly that I need to disassemble it with a tool. But I used a wrong tool that I crumbled the glass tube. Thus, when you assemble the filling ring, don’t assemble it too tightly, but just to the degree that can ensure good sealing.


This RDTA is surprisingly stable for using. After using it for several days, I didn’t find any critical problems. As regard to the taste, it’s just at a normal level as ordinary RDAs.

The operation of the this Batttlestar RDTA with dual-posts and four holes is pretty easy. The workmanship is excellent, the performance is stable, the taste is good. The colors and style completely match the Battlestar mod.

What attracts me most is the cheap price of it. $29.69!

If you are looking for a RDTA, or if you already have the Smoant Battlestar mod, Smoant Battlestar RDTA  couldn’t be a better choice.

Limitless Gold RDTA Review—Replaceable Deck

Limitless Gold RDTA is the newest tank released by Limitless company.

Limitless company is a Canadian manufacturer and used to be a partner of iJoy  the Chinese brand. But at present, they have become two separate companies. Limitless Gold RDTA, designed exclusively by Limitless company, is the upgraded version of the previous Limitless RDTA tank.

When it comes to RDTA, some new users might not know it well. RDTA is shorted for Rebuildable Dripping Tank Atomizer, meaning that it’s a dripping tank.

Before I give the demonstration of Limitless Gold RDTA, I’d like to talk about the RDTA category.

As the latest atomizer category, RDTA, featuring both the unique flavor of dripping atomizers and the storage function of tanks, has attracted great attention from the vaping group.

When it emerged in the market firstly, it received great response. But the hot wave decreased soon in a short time. The reason of this phenomenon is due to its incomplete structural design on its first emergence. Oil leaking, complex structure, inconvenience for installation and cleaning, were the factors that constrained its development.

In 2017, after long silence, RDTA appeared in the market again with the problems above optimized.

Structure Decomposition

Generally, the structure of RDTA from top to bottom is drip tip (might be integrated with top cap), atomizer cap, atomization warehouse (might be integrated with top cap and drip tip), electrode plate, filling ring (might be integrated with electrode plate), oil tube (normally glass material), 510 electrode plate.

The upper part of RDTA has no difference to the RDA. The electrode plate of the two categories are both wrapped by atomization warehouse.  But the RDTA has an additional part— the oil tank.

Structure Details

The atomization warehouse usually wraps the whole electrode plate, including most part of the filling ring. Such design, in one aspect, it’s for the appearance; in the other aspect, it’s for sealing the filling hole (the early RDTA leaked because the filling ring is not sealed tightly thus leading to decompression of the oil tank).

Generally, RDTA is structured with U-shaped dual-post four-hole electrode posts. Also, there are also designs of presser-styled electrodes and non-electrode. After all, these different kinds of electrodes come from the existing electrode posts types of RDA, which can bring simple and convenient coil building experience.

The wicking of RDTA is different to that of RDA. You cannot just put the cotton end into the bottom of the oil tank to lead the oil to the coil. If you operate like this, the oil-defecting distance will be too long. After half tank of the oil has been finished, the oil defecting speed will become slower. Also, the oil in the cotton cannot be deflected completely and is difficult to deal with.

We treat the oil tank of RDTA as a temporary oil tank. Every time when you vape, the atomizer will be slanted, then the oil will be deflected into the cotton. But when the left oil in the oil tank is very little, if you invert the atomizer, the oil can still be deflected into the cotton thus to the coil.

Thus, I suggest vapers can leave each of the cotton end about 1 cm longer than that of the RDA when you do the wicking. This is not only pleasing to the eyes, but also will not waste too much oil, and the operation is much simpler.

OK, hope you guys have had a good knowledge of RDTA.

My first sight at Limitless RDTA tank, I was attracted by its gold pin in the tank.  The tank has a juice capacity of 4.75ml which is big for a RDTA.

The drip tip and the atomizer cap are an integrated part. By screwing it off, the gold plated deck comes to your eyesight. It is absolutely a unique design and the deck is replaceable with two options. With the replaceable decks, you can have different vaping experience.

It has a 25mm base with a unique bottom airflow design that shoots the air directly under the coils. It also features a top adjustable airflow control with Limitless triangles as your airflow slots.

To best match Limitless Gold RDTA , I suggest the Tesla Nano 120w box modLimitless Arms Race 200w and  iJoy Captain PD270 234W.

How to Clean Fancy Coils –Coil Maintenance!

How to clean fancy coils? Have you ever had a problem to do the coil maintenance? Or do you just throw the burnt coils away? That’s too wasteful!

Fancy coils (also understood as twisted coils or intertwined coils) are intertwined by multiple heating wires. The heating area of it is larger than the ordinary coils, thus no matter the flavor or vapor, they are superior to the ordinary coils.

With the advancement of e-cigarette industry, heating wires made of various material have emerged in the market. The fancy coils, intertwined by heating wires, known as finished fancy coils, can bring much convenience to vapers who like fancy coils.

After vaping for several days, there is always accumulative carbons adhered to the coils. It not only looks gross, but also influences the taste. When you vape on it, you will taste a burnt flavor unavoidably. On seeing this, vapers would wash the coils and change the cotton.

In fact, there are lots of points that we need to pay attention when we wash the fancy coils. Here I will give a simple elaboration on it.

The picture above shows the triple-wired Clapton fancy coils made of NI80 material that has been used for 4 days and are not cleaned.  It’s easy to see that there are lots of accumulative carbons on the coil and the outside of the coils is blacked obviously.

When I vape with it, the burnt flavor is pungent. Of course, this picture is just for this test. In daily use, I suggest you guys to clean your coils and change the cotton every one or two days.

The accumulative carbons might be blasted away because of the high temperature and then adhere to the inner wall of the atomizer.

After removing the cotton, we install the tank onto the box mod, just like what we do when burning coils.  Then we adjust the voltage to 3.0V.

Don’t adjust the wattage too high. If the heating temperature goes too high, the accumulative carbons will be blasted away and burn the vaper’s hand, even worse to melt the coils.

The strong burnt flavor you smell when you heat the coils is caused by the accumulative carbons on the coils.

When the coils are burnt like a coal, you can easily see the accumulative carbons adhered to the coils just like scabs.

When the coils are burnt to red, you can stop pressing the fire button and then put the coils into the warm water (40-60°). Attention,  don’t wet the mod.

Please remember that don’t power it. Don’t power it! Don’t power it! Or the coils will be short-circuited and will melt in the water.

Then why should we use warm water?

In fact, the process that you put the burning coils into water to cool them is called “quenching”.

If the temperature difference between the water and the coils are too big, the coils will be embrittled. That is to say the coils will be easily broken.

Again, why should we use warm water? The reason is the temperature of the water will have a direct influence on the life span of the coils.

After repeating the process “quenching” several times, you will see there are grains of carbons in the water.

Then, you can use the vape brush to clean the coils. With the vape brush, you can clean away the accumulative carbons between the wires.

The brush part of such brush is normally made of stainless steel or brass.

Coil Maintenance

When we wash and brush the coils, we should take into consideration the following points.

  1. We should brush the coils softly but not too hard.

The outer wire of the coil is always very thin. If we brush it too hard, the outer wire will be easily damaged.

  1. When we do the brush, we should brush it in one direction but not back and forth over and over again. I usually brush from the left to the right and then from top to the bottom. If you brush the coils back and forth over and over again, you will disorganize the wires intertwined with complicated process and enlarge the gap between the outer wires.

Later, we can disassemble the tank into parts and put them into the ultrasonic cleaner to clean them. In this way, the dirt in the tank will be all cleaned out.

The last step, after we air-dry the tank then we can install it onto the box mod and burn the coils to make adjustment. Then let the coils cool to the room temperature.

This step is not only to adjust the coils and see if the coils are heated evenly, it also has the advantage of “tempering”, which can improve the performance and life span of the coils.

Let’s make a comparison between the coils before cleaning and after cleaning.

In fact, when you use fancy coils, you might as well to choose the oil of low sweetness and good quality. In this way, the accumulative carbons can be reduced directly.

Fancy coils can bring vapers with high-qualified vaping experience, but because of the expensive materials and the complex intertwining work, the price of fancy coils are far more expensive than ordinary coils. When we use fancy coil, we should know how to do the daily cleaning and maintenance.

Just like the car maintenance, we should not only have a good taste on cars but also know how to maintain them. If we do the coil maintenance properly, we cannot only prolong the life span of coils,  but also bring their good performance into full play, accordingly, bring us better vaping experience.

If you have any need to buy tanks, Urvapin delivers you a sale up to 70% off! Click here!

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Tesla Biturbo Mech Dual RDA Starter Kit Review—Two RDAs!

I have to say, for this time, Teslacigs impresses me again with its new release—Tesla Biturbo Mech Dual RDA Starter Kit. It has the ability to fire two RDAs at the same time!


Tesla Biturbo

Teslacigs has gone further and further on creativity with the successive release of Tesla Nano 120w box mod, Tesla Invader 2/3 box mod and Biturbo.

From the appearance, Tesla Nano looks just like an old lighter at my first sight. Then it’s cool to find that there are actually two RDAs on it. Users can add  two different juices of different flavors to enjoy a complex and unique taste on vaping.

The overall Tesla Biturbo Mech Dual RDA Starter Kit is constructed by the drip tip and top caps (together), two RDAs, and the battery compartment.

Tesla Biturbo

To build and burn the coil, you have to remove the top cap and trip tip. The two RDAs are both constructed by two electrodes and you build them just in the normal way separately. The most unique feature of this starter kit is that you can drip two different flavored juices to create a combined flavor.


Tesla Biturbo


On the side of the starter kit, it is the fire button. At the bottom of the kit, there are two black round buttons that you can control the two channels—meaning the two RDAs. There are two LED lights on the lower front side.

Except for vaping a complex combined flavor, you can also choose to vape two different pure flavor just by open or close either of the two RDAs.

To power the kit, you need dual 18650 batteries. Press the fire button five times consecutively, the kit will enter into the stand-by mode. By pressing the channel selection button A/B to open or close the channel A/B.

When channel A is opened, the LED A will be on and RDA A will work upon pressing the fire button;  when channel A is closed, the LED A will be off and RDA A will not work upon pressing the fire button. When channel B is opened, the LED B will be on and RDA B will be on and RDA B will work upon pressing the fire button; when channel B is closed, the LED B will be off and RDA B will not work upon pressing the fire button.

Guys, please remember, safety is prior to vaping. Tesla Biturbo takes full consideration of safety. Four kinds of protections as below:

  1. Over Puffing Protection: The device will be deactivated after continuous puffing of more than 10 seconds. The corresponding LED will flash for 8 times and the device will enter into the stand-by mode.
  2. Reverse Connection Protection: If batteries are inserted incorrectly, the device will fail to power on and will prevent any damage to the chipset.
  3. Low Voltage Alert: When the voltage drops below 7.5V, corresponding LED will flash for 15 times and the device will power off.
  4. Atomizer Short-circuit Protection: When an atomizer short circuit occurs, corresponding LED will flash for 5 times rapidly and the device

Tesla Biturbo Mech Dual RDA Starter Kit Features & Spec:
1 or 2 RDAs Arbitrary Switch
Channel Selection Button
Dual 18650 Cells Setup
Connector Bridge For RDAs
Great Vapor Productions
Wide Bore Drip Tip
Airflow Control System
Enjoy Two Flavors Simultaneously
Biturbo Mech Mod
Dimension: 52*26*107mm(starter kit) / 52*26*88mm(Mod)
Material:Zinc Alloy(Die Cast)
Cell Type: 2 Hi-drain 18650 cell(Discharging current should be above 30A)
Thread Type: 510 thread
Min resistance: 0.1Ohm(Single RDA)/0.2Ohm(Dual RDAs)
Input Voltage Range: 6.0V~8.4V
Standby Current: < 5uA
LED Indicator: Blue
Protections: Over puffing protection/ Reverse connection protection/ Atomizer short-circuit protection/ Low voltage alert.
Biturbo Mech RDA
Diameter: 25mm
Height: 30mm
Adjustable Aiflow: Yes

Tesla Biturbo Mech Dual RDA Starter Kit Package:
1 * Biturbo Mech Mod
2 * Biturbo Mech RDAs
1 * Connector
1 * Drip Tip
4 * Clapton Wire
6 * Silicone Rings
1 * Screwdriver
8 * Screws
2 * Organic Cotton
1 * USER Manual

Tesla Biturbo Mech Dual RDA starter kit is right on sale at Urvapin!

OBS Cheetah II RDA Tank Preview–$25.99+ Free Shipping Worldwide


OBS Cheetah ii

After the release  of Cheetah RDA, OBS had released its second version Cheetah II RDA.  Really good looking!

Due to its dripping function, RDA is always of very small size with no tank. So is Cheetah II RDA.  But it’s of very fashionable looking with two Cheetahs on the body of the RDA.  It comes in 4 colors of black, jewelry blue, silver and gold, with two versions—Cheetah II and Cheetah II Mini (all called Cheetah II below).


By the way, if you have questions regarding the RBA, RDA, RTA, RDTA? Here is the answer.

Cheetah II RDA features a PEI Drip Tip which adopts PEI material, unbreakable, environmentally friendly, clean and durable. Just like other  RDA tanks, its drip tip is so wide that you can drip directly from the drip tip. Or you can also take off the top cap to drip.

OBS Cheetah ii

Unlike its predecessor Cheetah, Cheetah II changes the airflow hole from top to side and the air hit the wire closer. The Precise design of air circulation system conduces to concentrate the smoke and show the flavor.

OBS Cheetah ii

It is officially said that all of OBS products have anti-counterfeit labels thus to protect consumer’s profit.


Cheetah II is very simply designed and is easy to detach and clean. For atomizers maintenance, I have write a relative article.

OBS Cheetah II and mini RDA Tank Features & Spec:

Filling: Drip e juice down directly from the drip tip
PEI Drip Tip: The drip tip adopts PEI material, unbreakable, environmentally friendly, clean and durable.
Internal Air Hole: Air flow adjustable.
Push Open Cover: Push Open the cover and drip down e juice.
External Air Hole: The air intake system, formed of the atomizer chamber space-tracking the heating wires’ cooling form, helps the air hit the wires precisely and efficiently.

OBS Cheetah II and mini RDA Tank Package:
1 * Cheetah II (Mini) tank
2 * Clapton Coil
1 * Allen Key
Spare Parts
User Manual

If you are a flavor chaser, OBS Cheetah II can be a very good choice, not  only its fashionable looking but also its innovative design.

Relative Shop: www.urvapin.com 











How to Clean Atomizers—Atomizer Maintenance


Is atomizer maintenance necessary? Do you clean your atomizers after vaping? The answer surely is yes! How to get rid of the oil smell in the atomizer? How to wash the atomizer? Any matters need attention?

  1. How to clean atomizers in the daily use?

There are many ways to clean atomizers, for example, alcohol, clean water, ultrasonic cleaner and etc. Today I will share my special secret for cleaning atomizers with you. Preparation: baking soda, a bowl of clean water, tweezers , cleaning cloth and clean tissue.

  1. Disassemble the atomizer into three main parts– top cap, oil tank and base. After that, then you disassemble the rings. If you are not sure if you can remember all the positions of the rings, you can put them away according to the order when you disassemble the rings. But please pay attention that don’t disassemble the small accessories in case that they might be lost in cleaning.
  2. Based on the proportion of 1:20, blend baking soda and cool or warm water evenly. Put the atomizer without rings into the water and after 10 minutes, you will see the water becomes light yellow. At this time, you can stir the atomizers in the water to erase the impurity of the atomizers. Then get the atomizers out of water with a tweezers and put them into another container.
  3. Wash the atomizers with clean water, and wipe the water on the atomizers with dry cloth or tissues, or let them dry in the open air.

Tip: baking soda can wipe off the impure flavor in the atomizers.

  • How to store the atomizers when you don’t use them?

The mainstream atomizers in the market are mainly made of 304 stainless steel and 316 stainless steel. How should we store them after using them?

Firstly, you need to clean the atomizers in the water. After cleaning, make sure the atomizers and rings are dry without water left in case that the atomizers get rusted. When assembling atomizers, you can smear the rings and the threads with a little bit of pure VG to avoid the threads from rusting and dead-locking and avoid the rings from weathering. Pure VG will not add impure flavor to the atomizers. 

2 .How to prolong the life span of an atomizer?

An atomizer is composed of several metal parts. If you use it improperly for a long time and pay no attention to the details,  problems can be easily emerged—screws getting scrapped, threads becoming smooth, leakage leading to scrapped rings,  insulation spacer getting out of shape. How can we prolong the life span of an atomizer?

  1. When building coils, we just need to lock the coil to a proper state, but don’t screw the screws way too tightly.
  2. The smoothing of screw threads usually appears when we install it on the mod. Thus, when you do the installation, you should not use a brute force to screw the screws. You should joint the threads properly before you screw it.
  3. Leakage is the main reason why we give up an atomizer. Before we throw it away, please build the coil again with all your heart. Make sure if it’s the problem of the structure of the atomizer, and then check if the rings can well seal the gaps.
  4. If you burn the coils improperly, the overheat will lead the insulation spacer to be out of shape and thus be scrapped. In this case, we can shorten the burning time, or burn the coils discontinuously to cool the atomizer and ensure the completion of the insulation spacer.
  5. How long is the life span of an atomizer?

How long is the life span of an atomizer? This is a question that I was asking when I was a newbie. I normally bought two pieces of atomizers of the same model for replacement. But later I found it was meaningless.  The main parts of atomizers are made of metal and are very firm.  The easily worn-out parts are the accessories, such as glass tube, ring, screws, threads,  insulation spacer and so on. Most of atomizer packages include spare parts of these accessories.

Proper operation and maintenance will greatly prolong the life span of an atomizer.


Atomizers are sorted as the mechanical metal products. As long as we learn how to maintain them, you will find that you can own them for a pretty long time. As time goes by, the atomizers will be imprinted with the sign of aging, but how interesting is it to discover that!


Relative shop: www.urvapin.com

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Limitless Pulse Pod System Starter Kit Preview—Vape Anywhere at Any Time!

Limitless Mod Co., cooperating with PLY Rock, has manufactured a really portable starter kit named Limitless Pulse Pod System Kit.

Limitless Pulse Pod

I guess it’s a universal problem for our vaping friends to choose a proper ecig to take with when going out. The Dragon-Boat Festival of China is around the corner, and also brings this problem to me. Personally, for carrying around, portability is my first concern, but not the big functions that I may pay great attention when I am vaping in the office or at home. I have decided to take the Limitless Pulse Pod for the short-distance trip in the coming festival.

Limitless Pusle Pod

As shown in the picture, Limitless Pulse Pod System Starter Kit is a portable all-in-one device with a skinny body, totally different to those big ones. Put it in your pocket just like a pen!

Limitless Pulse Pod System Vape is small, but it’s perfectly configured. It is composed by a changeable pulse pod and a chargeable battery part (I may call it mod). The pulse pod has a juice capacity of 2ml, just like a cartridge.

Limitless Pulse Pod

The Pulse Pod is easy for refilling. You just disassemble the mouth piece, open the red plug and fill it with the juice bottle. Mind that there should be now left liquid outside of the tank. A thin needle tip bottle will be a good choice for filling the tank. As coils may be burnt too much and thus influence the flavor, the heater in the pod also needs to be changed. How often you change the pod depends on your personal vaping habit. It’s the similar question to how long does a limitless pulse pod last, thus the answer is the same.

Limitless Pulse Pod

Limitless Company is also considerate to release a separate pulse pod pack exclusively for this kit. Three pieces in a pack and it’s quite easy to change the pod which you can see from the picture above.

The battery has a capacity of 380mah and it is rechargeable by a USB cable. The button on the center of the Pulse Pen allows you to change the color of the LED light system.

Limitless Pulse Pod

For the package, Limitless adopts its usual style—the hat box made of paper. On the front side of the box, there is the LOGO and the product name as well as the name of its cooperator PLY ROCK.  Inside of the box, there is a Limitless Pulse Pod System Vape Pen, a Pod and a USB charger.

The price of Limitless Pulse Pod System Kit is also affordable and sells for only $25.95. Shop now!

Check the cheapest ecig shop www.urvapin.com for more Electronic cigarette promotion.

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