Vape Kits Explained: Types, Key Parts and How They Work

Battery and power controls

The battery provides electricity. Capacity is measured in mAh, but a higher number doesn't always mean longer battery life. Power settings and daily use also matter.

Pod or tank

The pod or tank stores your e-liquid. Pods usually click or slide into place, while many tanks screw onto the battery.

Coil and wick

The coil heats the liquid, while the wick keeps it supplied. Many coils use cotton, and some use mesh heating elements.

Mouthpiece and airflow

The mouthpiece is where you inhale. Airflow controls, when available, let you make the draw tighter or looser.

Charging port, buttons and display

These features vary between kits. Some devices have no buttons at all, while others show power, battery level and coil information.

The OXVA XLIM Pro 2 Pod Kit is one example of a modern pod system available at Ejuice Couture.

How Do Vape Kits Work?

Vape kits work by using battery power to heat e-liquid inside a coil. The heated liquid creates an aerosol that travels through the mouthpiece.

Here's what happens when you use one:

1. The device activates. You press a button or inhale, depending on the kit.
2. The battery supplies power. Electricity reaches the heating coil.
3. The coil heats the liquid. The wick supplies e-liquid to the heating element.
4. The aerosol travels upwards. Air carries it through the mouthpiece when you inhale.

Some e-cigarettes start automatically when you draw on the mouthpiece. Others require you to hold a button.

The process is similar across most vape kits, but the exact operation depends on the design. Some let you adjust the power, while simpler models manage it automatically.

Vaping does not involve burning tobacco, but the aerosol is not harmless.

What Are the Different Types of Vape Kits?

The four main types of reusable vape kits are prefilled pod kits, refillable pod kits, vape pens and advanced kits. Each has different controls, maintenance needs and running costs.

1. Prefilled pod kits

Prefilled pod kits use cartridges that already contain e-liquid. When one runs empty, you replace it with a compatible pod.

They need little maintenance because there is no manual filling. However, your flavour choices depend on the replacement pods available for that particular device.

You can explore different models in Ejuice Couture's prefilled vape kits range.

2. Refillable pod kits

Refillable pod kits let you fill the pod with a compatible bottled e-liquid. This gives you more choice over flavour and nicotine strength.

You need to refill the pod and replace its coil or complete cartridge when it wears out.

Small refillable devices, including those in the pod kits collection, are often easy to carry.

3. Vape pen kits

Vape pens are slim, pen-shaped devices. Many have a refillable tank and a simple button, although some activate automatically.

The Innokin Endura T18 X Starter Kit is an example of this style.

Vape pens can be straightforward to operate, but their coils still need replacing.

4. Advanced kits and box mods

Advanced vape kits offer more control over settings such as wattage. Some also support replaceable batteries and different tanks.

These devices can require more setup and knowledge of coil compatibility.

The Vaporesso Armour Ultra 100W Vape Kit is one example in this category.

Ejuice Couture's guide to 4 types of vape kits every buyer should know covers more differences between these device styles.

Prefilled vs Refillable Pod Kits: What's the Difference?

Prefilled pods arrive with e-liquid already inside, while refillable pods let you add your own liquid.

Neither type is automatically cheaper. The total cost depends on how much you vape and the price of replacements.

If you like using the same ready-filled flavours, a prefilled system may be convenient. If you want to change nicotine strengths or try bottled liquids, a refillable device gives you more flexibility.

What Is the Difference Between MTL and DTL Vaping?

MTL means mouth-to-lung vaping, while DTL means direct-to-lung vaping. The difference is how you inhale the aerosol.

MTL can feel more familiar to adults switching from cigarettes. DTL produces more vapour and often uses lower nicotine strengths.

Coil resistance and airflow affect both styles. However, the correct liquid depends on your device's specifications, not just the inhale style.

Ejuice Couture's e-liquid guide explains how VG, PG and nicotine types affect compatibility.

What Should You Check Before Choosing a Vape Kit?

Choose an e-cig based on its device type, battery, e-liquid compatibility and replacement costs. These details matter more than appearance alone.

Before choosing, check:

• Device type: Do you want a prefilled pod, refillable pod, vape pen or advanced kit?
• Battery: Check capacity, charging method and whether the battery is built in.
• Compatibility: Make sure suitable pods, tanks and coils are available.
• E-liquid: Check the recommended VG/PG ratio and nicotine strength.
• Maintenance: Find out how to refill, clean and replace parts.
• Cost: Compare the kit price with the cost of regular refills.

Also check the manufacturer's instructions and what comes inside the box. Some kits do not include bottled e-liquid or a charging cable.

Ejuice Couture's beginner vape kit guide provides more examples if you're comparing your first device.

What UK Vape Kit Rules Should You Know?

Single-use disposable vapes have been banned by Governement UK from sale across the UK since 1 June 2025. Reusable vape kits remain legal when they meet the relevant rules.

A reusable device must have a rechargeable battery and a refillable container or replaceable prefilled pods. Its coil must also be replaceable, either separately or as part of a replacement pod.

UK rules also limit refillable tank capacity to 2ml and nicotine-containing refill bottles to 10ml. The maximum nicotine strength is 20mg/ml.

These rules help explain why modern kits often use rechargeable batteries and removable pods.

Frequently Asked Questions About Vape Kits

What Are Vape Kits Used For?

Vape kits heat e-liquid to produce an inhalable aerosol. Some contain nicotine, while others use nicotine-free liquid. Adult smokers sometimes use nicotine vapes as an alternative when quitting cigarettes.

Do Vape Kits Come With Everything You Need?

Not always. A kit may include the device, a pod or tank, and a charging cable. E-liquid and spare coils may be sold separately. Check the product's box contents before ordering.

How Long Does a Vape Kit Battery Last?

Battery life depends on its capacity, wattage and how often you vape. A smaller, low-powered device may need less energy per puff than a high-powered kit. There is no fixed battery life for every model.

How Do You Know When to Replace a Coil?

A persistent burnt taste, weak flavour or reduced aerosol production can mean the coil is worn out. First check your liquid level and settings. Replace the coil or pod if the problem continues.

Are All Vape Kits Refillable?

Reusable kits can be refilled either with bottled e-liquid or by inserting new prefilled pods. Not every kit lets you pour liquid into its pod. Always check which refill system the device uses.

Are Vape Kits Safer Than Cigarettes?

Nicotine vaping is less harmful than smoking, according to the NHS, but it is not risk-free. Long-term effects are still being studied. Vaping is intended for adult smokers, not children or people who have never smoked.

Understand Vape Kits Before Choosing One

Vape kits all work on the same basic principle, but their parts, controls and maintenance needs differ.

Understanding these differences makes it easier to compare devices and avoid buying incompatible parts. Once you know which style suits your needs, explore the vape kits collection at Ejuice Couture vape shop and check the product details before ordering.