How Often Should You Replace Atomizer Coils?

By Lindsay Fox Posted May 25, 2015

atomizer head lifespan


[This is a guest post by Todd Slater from Vapor Authority. We’d like to thank Todd for his contribution and offering this useful information for new vapers.]


Vaping requires two primary products that must be repurchased on a regular basis: e-liquid and atomizer coils. However, there is a lot of confusion as to how often atomizer coils need to be replaced. The confusion stems from the fact that there are several factors that determine how long an atomizer coil will last and when it should be replaced.


What Is An Atomizer Coil?


Kanger atomizer head


An atomizer coil (also known as an atomizer head or replacement coil) is the part of an electronic cigarette that heats the e-liquid, thereby turning it into vapor. Atomizer coils come in two general types: single-coil and dual-coil. Dual-coil atomizers have two heating elements vaporizing the e-liquid simultaneously, while single-coil atomizers have only one heating element.


Atomizer heads are made up of three primary components: the casing, the wire (coil), and the wicking material. The wire is wrapped around the wicking material in a coil formation. The two ends of the wire are then connected to the portion of the casing that makes contact with the battery. When e-liquid is introduced into the tank, the wicking material will absorb it and become saturated with it. Once the battery is activated, it heats up the coil, causing the e-liquid absorbed in the wicking material to be vaporized.


What Factors Determine How Long An Atomizer Coil Lasts?


There are several factors that collectively shape the lifespan of your atomizer coil. The acidity level and the PG/VG consistency of your e-liquid both play an important role. Additionally, the amount you vape and the amount of power running to the coil are also contributing factors.


In general, the higher the acidity level of your e-liquid, the faster the coil will burn out. Certain flavors, fruit ones for example, tend to have higher levels of acidity, which will in turn burn out your atomizer coil more rapidly than other flavors. In addition, the higher the VG content of the e-liquid, the quicker your atomizer coil will tend to need replacement. This is due to the fact that vegetable glycerin is substantially thicker in consistency than propylene glycol. As a result, the cotton or silica wicking element within the atomizer coil deteriorates much faster when VG dominant liquids are used.


Moreover, the wattage and voltage level you are running to your atomizer coil will be a determining factor for its longevity. The more power you are running, the quicker the atomizer coil will burn out. Higher wattage and voltage will ultimately cause the wire to lose its heating capability, and it will therefore produce less vapor.


Perhaps the most obvious factor involved in determining how long your coils will last is how often you vape. Those who vape consistently throughout the day will need to change their atomizer coils much more frequently than those who vape scarcely or sporadically throughout the day. In other words, the longevity or lifespan of an atomizer coil is measured in hours used as opposed to days since the last replacement.


How Do You Know Your Atomizer Coil Is Burning Out?


There are several telltale signs indicating that your atomizer coil is on its last legs. Generally, the first thing you will experience is reduced vapor production. Soon after, you will begin noticing other classic signs as well. Leaking, gurgling noises, poor flavor production and no vapor production are all symptoms of a failing or failed atomizer head.


Usually, the first sign of a dying atomizer coil is a reduction in vapor production. When you begin using an atomizer head for the very first time, you will notice that you get thick vapor clouds. This level of performance lasts for a few days before the atomizer gradually produces less and less vapor. Since this happens progressively, it is often difficult to detect the change. However, when you pop in a fresh coil, the difference is very stark.


used atomizer coil
Photo: – A used coil with a badly burned wick.


One of the most common indications of a failing atomizer coil is a burnt taste when taking a drag. Although there are other causes of this, such as insufficient e-liquid in your tank or too much power running to the coil, a burnt taste is a classic sign of an atomizer that needs to be replaced. The absorbing material within the atomizer (usually cotton or silica wicking material) begins to discolor, oversaturate, and char through use over time. When this occurs, the material loses its ability to adequately absorb the liquid, thereby causing drier hits.


Another early sign of a failing atomizer coil is your e-liquid leaking. At some point in the time you have vaped, you have most likely experienced some of your e-liquid getting into your mouth when taking a drag. Although there are other causes for this, a leaking device is a clear indication that your atomizer coils is failing. Since the wire cannot heat to the necessary temperature to adequately vaporize the e-liquid, some of it gets drawn up into your mouth when taking a drag.


Additionally, a leaking device is often accompanied by flooding and subsequent gurgling sounds. Since the coil is not heating the e-liquid at a rapid enough rate, taking a drag causes the atomizer head to flood and begin gurgling. This is a very apparent sign, as the gurgling sound is noticeable and will immediately capture your attention.


Ultimately, if the atomizer coil is not replaced, it will eventually cease to produce any vapor whatsoever. When you take a drag at this point, you will get absolutely no vapor, and will likely end up with liquid in your mouth instead. When this occurs, the wire within the coil does not heat up at all, or at such a low temperature that it cannot vaporize the e-liquid. It isn’t recommended that you wait to this point before replacing the atomizer, however: the coil should be replaced at the first sign that it is beginning to fail.


How Frequently Should I Replace My Coils?


With all of the variables discussed above, it is extremely difficult to have a clear-cut rule for when an atomizer coil should be changed. However, there is a very general guideline that can be followed.


If you are a very heavy vaper, meaning you continuously vape throughout the day, you will generally need to replace your coil every 5 – 7 days. If you are a moderate vaper, whereby you vape fairly consistently through most of the day, but only take a couple drags each time, your coils should last you about 14 days or so. If you are a very light vaper, where you take a few hits here and there throughout the day, your coil could last you 3 weeks or so. Of course, this is not to say a coil cannot last longer or die sooner—it’s simply a very general rule of thumb. It is recommended that you change your coil at the first sign of the issues discussed above.



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  • Shirley Carden

    Although I’m sure these tips will help, I am not sure that is all there is to it. I had been using Aspire double bottom coils for around 4 months. They were last between 3 and 4 weeks with an occasional dud. However, when I saw a sale on these products, I stocked up with 2 more boxes of 5 each. Thinking they were going to last as long as previously, I was shocked to find I had to reorder the very next month. I was getting as little as 3 days on several of them. I didn’t change my juice or my equipment in any way. Since then, my company has not carried these and replaced them with a vertical bottom coil. These are slightly better and more consistent but I am still only getting a week from them. I will take these tips into consideration and see if I get anymore life out of my coils.

    • M’or Kennedy

      a. Those Chinese companies are famous for lowering the quality of the coil once they have a captive audience on certain popular coils. The direct result is “your stuck” throwing them away and just putting in a new coil. b. As time moves forward in the life cycle of the tank, or coil shortages by the original manufacturers the odds of a re-seller selling clones increases exponentially. Clone maker’s do not care about the quality at all. I actually think they could make these heads like a milk steamer but they don’t because then they would lose the post sale income. This feels like the old “we make women’s nylon stocking’s to run so they have to buy new one’s every week”.

  • I thought this was an excellent article on coil replacement. Very informative. Thanks guys!

  • Ted1375

    Very informative article. It gave me all the information I was looking for. Thank you

  • Erik

    jeeze – every 14 days for a moderate vaper? that is quite extreme. must just be a coincidence that you also sell coils on your website!

  • Jacob

    I’m a quite heavy vaper and I use a dually atomizer. I’ve been using it heavily for about 3.5 weeks with no signs of failure. Flavor and vapor production is still pretty good, and there is no gurgling and juice does not leak. However, I buy genuine KangerTech coils that are a specific match for my tank.

  • John Kimsey

    I have a cubis tank and using joyetech atomizer heads. After 2 to 3 days it would taste like I was smoking cotton and I would constantly change flavors to see if it would stop that from happening. Well it didnt. The vg pg mix didn’t matter because they both lasted the same amount of time before the burnt taste set in. I bought my girlfriend a smok tank and saw how it was so opened on the sides that I decided to drill a hole in my atomizer head. That worked. I drilled the hole as far down as I could but kept it in the side and only one hole. Now no more burnt taste. Its not easy to do but one hole is all I needed. Remember, I use a joyetech atomizer dual coil head in my cubis tank. Hope this helps yall.

  • Aussie John

    This does not sound right. Aspire and Kangertech coils should last many months, up to a year or more. I have an Aspire coil that is into its second year of daily light to moderate use and it’s still going strong. Same story with a Kangertech I have which is approaching its first year. I can’t speak for other brands, and cheap manufacturing will certainly shorten the life, but these figures are stupidly low. The sellers want you to buy coils when you don’t need them, that’s all. And I say this as an owner/operator of a vape shop.

    • Christa Kwon

      Soooo I have the Kangertech Subvod, they told me I need to change it about every 3 weeks or so, are you saying that’s not true. (I’ve had it almost 3 weeks now, first one).

      • 25gPURE

        That’s bullshit, you’re right….I’ve had a few atomizers that have never been changed, in years and work fine. Unless you are a big “vaper” lol, then unless it burns out, I don’t think you need to change the coil.

        • 25gPURE

          I was trippin…I use a vaporizer now often and change it every week. I didn’t know what I was talking about. Sorry for the bad advise.

      • Kelly Johnson

        I have the same thing and my coil needs changing. I’ve had this coil about two months and I’m not getting the output I did at first. I use good e-juice, so it’s not the liquid–it may depend on how often you vape and how long your “vape sessions” are. Possibly keeping the coil hot for an extended period of time degrades the coil faster. Just guessing.

    • 25gPURE

      The mod I bought before the one I have now was the aspire Pegasus and the coil lasted quite a while, about 4 months, I thought it was ok, but when I changed the coil…, it wasn’t ok, I got insanely huge could see. I switched to a SMOK atomizer now and that is unreal.

  • TbgNtn

    Just exchange coils when it stops tasting good .. simple..?

    • 25gPURE

      Try a brand called “naked” flavor green monster. It’s 19$ for a bigger bottle, 30ml, but so worth it! Cuttwood is another really good brand! “Unicorn milk” is a good one, sounds weird, but the stuffs so good. Hope that helps, I have been doing this awhile and have tried all the brands I’ve seen, so far those 2 are elite!

  • dawnfyre

    I found it to be true of the joyetech eGO AIO. The coils from joyetech do last longer, and the “off” brands last 1/2 as much. I can get only 2 weeks before they begin to fail. But I’m also in the bottom of the vape brand since I’m not a serious vaper. Still, the cost of coils versus a pack of cigarettes is a better deal for me.

    • Tyler

      I also own the eGO AIO and its such a nice little device you can tell its a quality vape.

  • Lefty

    Personally I’ve felt that I need to change my coils every few days, even though I’m a light smoker. The Kangertech evod bcc like the one in your photo above is the one I’m using. After a few days if you take it apart, you’ll notice that not only is the coil charred, the rubber seal at the bottom is also burned from the heating element. I think this may be harmful as you’re effectively inhaling burned rubber / silicon as well. Also I bought the genuine coils from Kanger. Recently purchased a Joyetech AIO and three days in, and the vapor tastes fine so far. Might take apart the coil after a week and see if there’s any burning to the seals from the heating element.

  • Nick Scala

    I have a Kanger TopBox (KBOX mini) running a .5ohm stainless steel coil (pink o-ring) at a consistent 34W / 4V average fire rate with a 70/30 vg:pg ratio and low acid content. The current coil has lasted around 2 months with very little difference in vapor production and a steady but very mild decrease in flavor output. I have used many other setups and my current seems to provide a high level of longevity through trial and error.

    Something not discussed here are the material aspects of a coil head and the quality of components. As i mentioned the current coil itself and the casing are both stainless steel. The very first coil i used on this setup was nickel and it read at .25 ohm. Both softer materials and low resistance seem to be a factor in longevity as my nickel coil was shot in 3 weeks compared to the current 2 months. Furthermore the second one used was nichrome at .5ohm and that particular coil lasted 1 month and 9 days.

    To sum up you want to use high quality coils with a reasonable thickness and durability. Buy tanks and coils from respected vendors and stray away from cheap knock-offs. In addition you must experiment with your setup and find a balance between all elements. My recomendation for anyone looking to improve longevity is to use stainless steel as the material of choice running at around .5ohm. Stainless stell is extremely durable and provides even fire rates that wont waste battery life coil life or juice capacity.

    And for god sake stop using ridiculously high voltages. Sure it will put out massive clouds quickly but it also greatly reduces the life of your coil and mod respectively!

  • sasha

    This article is mostly accurate but ive found that moderate coils like the popular aspire bvc replacement typically lasts a bit longer. Id say 14 days minimum; 3-4 weeks max(:

  • Reese Daniel

    This all seems like too big of a pain in the ass to me. I think I’ll just stop smoking/vaping completely.

  • Croky

    Yeah, I agree but mind you this article is almost 3 years old. I mean, much has changed since then. Coils are more robust and reliable on the most common and middle range devices. Gotta love technology 😉

  • Jake Hill

    im still on my 1st coil and just want it to burn out! i wish they burnt out quicker i have lots of replacements and have ocd so i want my moneys worth! but at the same time its still working! tip#rinse coils out with hot water to prolong their lifespan! happy vaping vapeheads!!

  • Joe Shmo

    When my coil starts to go (after about a week of heavy vaping) I will get headaches from the vapor instead of a buzz