Pod systems and vape technology explained

What ENDS means

ENDS stands for Electronic Nicotine Delivery System — the regulatory umbrella term for any battery-powered device that aerosolises a nicotine-containing liquid. Vape pens, pod kits, box mods and disposables all fall under it. Indian regulation uses this category language rather than brand or format names.

The components

A pod device has five functional parts:

• Battery: a rechargeable lithium-ion cell, usually 350–1500 mAh, with charge and discharge protection circuitry
• Atomizer: the assembly that turns liquid into aerosol, comprising coil, wick and chamber
• Coil: a resistance wire or mesh strip, rated in ohms; lower resistance draws more power and produces more vapour
• Wick: cotton or fibre that pulls liquid from the reservoir onto the coil at a steady rate
• Airflow path: the channel that mixes air with vapour and sets the draw tightness

Coil resistance and why it matters

Resistance is printed in ohms. A higher-resistance coil (roughly 1.0Ω and above) suits a tight mouth-to-lung draw and higher nicotine strengths. A lower-resistance coil (below about 0.8Ω) pulls more power, produces more vapour, and pairs with lower nicotine strength. Running a coil above its rated wattage burns the wick and produces the acrid taste people call a dry hit.

Open vs closed pods

A closed pod is sealed and pre-filled, and is replaced whole. An open pod is refillable, so it costs less per millilitre and gives flavour choice, but it requires the user to manage filling, priming and coil life. Closed pods are simpler; open pods produce less waste.

Pod system vs disposable

Disposables win on zero setup and no maintenance. Pod systems win on running cost, waste, and control over airflow and strength. A pod battery lasts hundreds of charge cycles, so a single device replaces many disposables over its life.

Battery safety

Lithium cells fail when they are physically damaged, over-heated, or charged with an unsuitable supply. Practical rules: use the cable and charger rated for the device, never charge unattended or overnight, stop using a device with a swollen or dented battery, never carry loose cells with keys or coins, and keep devices out of direct heat such as a parked car.