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What are Low Resistance Atomizers?

by on March 19, 2017

What is a low resistance (LR) electronic cigarette atomizer?

The electronic cigarette is a relatively new product. There have been several key advancements in the technology behind this product, from new types of cartridges to cartomizers, to dripping. The electronic cigarette market has become very diverse, with something to fit nearly everyone’s personal taste.

Electronic cigarette users themselves have contributed greatly to these developments, and around 2009, someone figured out that you could connect an atomizer to a 5-volt battery instead of the standard 3.7-volt electronic cigarette battery, thus producing more power. More power leads to a hotter atomizer, thus producing a greater amount of vapor. More vapor at a hotter temperature leads to more flavor, a stronger throat hit, and for many, a more satisfying vaping experience.

However, these “5V mods” had their own problems. They were expensive — often well over $100 — and much larger than standard 3.7V electronic cigarettes. While standard electronic cigarettes look similar to actual cigarettes (or pens, in the case of some models), 5V mods looked more like flashlights, or boxes, in the case of some home mods. They were very unsightly and never caught on with mainstream electronic cigarette users.

Enter Cisco.

Cisco is the person who is credited with the idea of modifying the atomizer rather than the battery; by lowering the resistance of the atomizer you can get the experience of 5V vaping on a standard 3.7V battery. This resulted in the beloved Cisco atomizer (no longer stocked).

How does this work?

Let’s perform some calculations with Ohm’s Law, using the Cisco and Volcano’s Magma atomizer as examples. The Cisco has a resistance of 1.5 ohms, while the resistance of the Magma and other standard atomizers are closer to 2.5 ohms.

  • 3.7V battery with 2.5ohm atomizer: 5.476 watts
  • 5V battery with 2.5ohm atomizer: 10 watts
  • 3.7V battery with 1.5ohm atomizer: 9.12 watts

Note: you cannot use a low resistance atomizer on a 5V battery. It will destroy the atomizer.

As you can see, a low resistance atomizer gets you very close to the experience of vaping with a 5V battery without the enormous size and prohibitive cost. More vapor makes for a more satisfying experience, and a low resistance atomizer is the easiest way to produce massive amounts of vapor from a standard electronic cigarette battery. This has led to an explosion in demand for low resistance atomizers, and many electronic cigarette companies now provide them.

Benefits of low resistance

Simply put, a low resistance cartomizer atomizer or clearomizer will produce more vapor.

Drawbacks of low resistance

Low resistance atomizers do not work well with the smallest electronic cigarette batteries, as they drain the batteries quickly and can reduce their usable lifespan. The Volcano Inferno electronic cigarette is compatible with low resistance atomizers.


  • They do not last long
  • Decrease Battery Life
  • These are sold with a DOA warranty only.
  • Low resistance atomizers ARE NOT recommended for 510 batteries. They are mainly for use with Ego batteries (650 maH or more).

Interested in buying!

Good news for you- A full kit that includes a 510 battery, a 1.6 mL clearomizer tank, a bottom-coil dry herb and wax attachment, rubber mouthpiece, dab tool, cleaning brush, additional glass filter and a USB and wall charger is on sale right now at Vapin in the cape and why not try a 120ml bigfindeal e-juice with your new kits.

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