Ever wondered how e-cigarettes work? Well, we’re here to break it down for you. E-cigarettes have become very popular since they were first introduced in 2003, and there are now many different types available. But what exactly are they made of, and how do they function?

Essentially, e-cigarettes are made up of a battery, an atomizer, and a cartridge or tank that holds the e-liquid. When you puff on the e-cigarette, the battery heats up the atomizer, which then turns the e-liquid into a vapor that you inhale. So, if you’re curious about vaping or thinking of making the switch, understanding the basic components of an e-cigarette is a good place to start.

This blog post is a complete guide to knowing all the vital details about e-cigarette batteries. Whether you’re a newbie to the vaping world or looking for the best vaping accessories, this article will provide you with the necessary facts to make an informed decision.

Overview of an E-Cigarette Battery

Most e-cigarette batteries are lithium-ion and rechargeable. Some devices are disposable, while others take up to four batteries. The battery’s strength is measured in mAh (milliampere-hours), and the higher the mAh value, the longer the battery will last between charges.

For Instance:

Cig-a-likes are the most basic e-cigarette with a typical battery of 200-300 mAh. eGo-style batteries range from 500 to 1200 mAh and require a button to operate. Mod batteries can fall anywhere between 700 and 3500 mAh and are more powerful as well as larger. Loose batteries can catch fire when they come into contact with metal objects, so always use a case for carrying them. The wrong charger or user modifications can also cause e-cigarette battery fires, so follow the manufacturer’s guidelines to avoid risks.

The E-Cigarette Batteries and their Components:


The atomizer in an e-cigarette is responsible for turning the e-liquid into vapor. It contains a coil, which is a metal wire that heats up when the battery current passes through it. There is also a wicking material that runs through the coil and is saturated with e-liquid. The wick feeds the e-liquid to the coil, which then heats up and creates the vapor that is inhaled. 

Your e-liquid needs a place to go in your e-cigarette, and this is done through a part called a cartridge, cartomizer, or clearomizer. They all do the same thing, which is to hold the e-liquid and send it to the coil.


In a basic cig-alike vape device, there’s a cartridge that connects to the atomizer and supplies the e-liquid to the heating element. It works similarly to how an ink cartridge feeds ink to a pen nib. When the cartridge is empty, you replace it with a new one. The atomizer’s lifespan varies depending on how often it’s used and how well it’s made. Users can change between 5 to 20 cartridges before needing to replace the atomizer.


A clearomizer is a container that holds e-liquid and has an atomizer inside. It’s called a clearomizer because it’s usually made with a see-through plastic or glass material. This lets users see how much e-liquid is left inside. The atomizer has coils that can be changed, and they can be positioned in different ways inside the tank. 

  • Top coil clearomizers give you a warm vapor because the vapor is close to the atomizer head. They are easy to refill since you can fill them from the top.
  • Bottom coil clearomizers have good wicking ability and produce great vapor quality. They give a cool vapor and sometimes can be a little tricky to use.
  • Multiple coil clearomizers have more than one coil that produces more vapor, and potentially a stronger throat hit.

Ohm Tanks:

Ohm tanks are a type of vaping tank that is easy to use. You can fill them with e-juice and attach them directly to an atomizer base unit that has a replaceable coil. The coil has a cotton wick wrapped around it to soak up the e-juice. The term “ohm” refers to the coil’s resistance to electrical current. Ohm tanks produce a lot of vapor and strong flavor that makes them a great choice for anyone who is looking to upgrade from disposable e-cigarettes. They are convenient because they allow you to replace the coil and refill the tank without any hassle.

Battery capacity v. Battery voltage

When it comes to vape batteries, there are three important things to know: capacity, voltage, and wattage. Battery capacity is how long the battery can last on a single charge, measured in milliamp hours (mAh). The higher the mAh rating, the longer the battery will last between charges. Voltage is how much power the battery can output, usually 3.7 volts for non-adjustable batteries. Wattage is the amount of power the battery provides to the coil. The capacity of the battery and the resistance of the coil determine how long the battery will last. Lower resistance coils draw more power and use up the battery more quickly.

What kind of battery life can you expect?

It’s hard to predict how long your vape battery will last because it depends on many factors. These include how often and how deeply you inhale, how well you maintain and charge your device, the type of battery and its size, and the voltage or wattage you use. The coil you use in your tank also affects battery life, with lower-resistance coils using more power and draining the battery faster. There are so many different settings that it’s tough to estimate how many puffs you’ll get from your battery. For example, vaping at 80W will drain the battery much faster than vaping at 20W.

Tips for maintaining e-cigarette batteries

  • Avoid exposing the battery to extreme temperatures, such as direct sunlight, freezing temperatures, or hot cars.
  • Keep the battery clean and free of debris or dust, using a soft cloth or cotton swab to wipe it down. 
  • Store the battery in a cool, dry place, away from water or moisture.
  • Charge the battery using a compatible charger and avoid overcharging or leaving it plugged in for too long.


Understanding e-cigarette batteries are essential for safe and effective vaping. Vapers should be aware of the proper handling and maintenance of their batteries to prevent any accidents. It is crucial to know the difference between regulated and unregulated mods and how to use them properly. Choosing the right battery for your device is important for optimal performance. Vapes Direct offers a wide range of vape accessories online, including high-quality batteries, to ensure a safe and enjoyable vaping experience. Visit our website to find the right accessories for your e-cigarette.


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