Innokin Endura T20-S Vape Kit
There's a lot to be said for a device that does one thing well and doesn't try to be anything more. The Innokin Endura T20-S is built around that idea entirely, a single button, a fixed power output, and a tank that fills in seconds. It's the kit we recommend most often to vapers who want something dependable rather than something with a spec sheet to learn first.
The Innokin Endura T20-S Vape Kit is £19.99 (inc. VAT) at VSAVI, and every kit includes a 10ml bottle of our Platinum e-liquid, so it arrives ready to use. Available in four colours.
A dependable pen kit with nothing extra to learn
Innokin has kept refining this kit for years without overcomplicating it, and the T20-S is proof that restraint pays off. A 1500mAh battery that lasts most of a day, a 2ml top-fill tank, and interchangeable coils to fine-tune the draw, that's everything this kit sets out to do, and it does it consistently.
Key Features
1500mAh built-in battery. Enough charge to see most vapers through a full day, with a clear 3-level LED (green, yellow, red) so you always know where you stand.
18W fixed output. No dial, no menu, the T20-S runs at the correct wattage for its coils from the moment you take it out of the box.
2ml top-fill tank, UK TPD-compliant. Unscrew, fill, replace, no bottom-fill valve to line up.
Interchangeable 0.8Ω and 1.5Ω Prism-S coils. The 0.8Ω comes fitted as standard for a fuller, more flavour-forward draw, the 1.5Ω option (also compatible) tightens things up for an even more cigarette-like pull.
Single-button operation with lock. Five clicks locks the fire button, handy when it's loose in a bag or pocket.
Vape while it charges. No need to wait out a full charge if you're running low, the T20-S can be used while plugged in.
Stainless steel body. A slim pen-style build that holds up well to daily use.
Full Specifications
• Battery: 1500mAh built-in
• Output: 18W fixed (non-adjustable)
• Max current / voltage: 6A / 3.85V
• Tank capacity: 2ml (UK TPD-compliant)
• Coil options: 0.8Ω Prism-S (pre-installed) or 1.5Ω Prism-S, Kanthal wire
• Charging: Micro-USB, 5V
• Battery indicator: 3-level LED (green/yellow/red)
• Activation: Single fire button with lock function
• Fill style: Top-fill
• Airflow: Adjustable
• Body material: Stainless steel
• Vaping style: Mouth-to-lung (MTL), restricted draw
• Colours: Black, Blue, Grey, Red
Dimensions and Weight
|
Measurement |
Metric |
Imperial |
|
Height |
13.5 cm |
5.31 in |
|
Diameter |
2.0 cm |
0.79 in |
|
Weight |
92 g (0.092 kg) |
0.20 lb |
The T20-S is a slim, cylindrical pen rather than a boxy device, so one diameter measurement covers both width and depth, roughly the size of a slim highlighter pen.
What's in the Box
• 1x Innokin Endura T20-S battery
• 1x Prism T20-S tank (2ml) with 0.8Ω Prism-S coil pre-installed
• 1x spare Prism-S coil
• 1x spare mouthpiece
• 1x Micro-USB charging cable
• 1x user manual and warranty card
• 1x 10ml bottle of Platinum e-liquid, included free with every kit
Compatibility Guide
The T20-S runs on Innokin's Prism-S coil family, shared with the Prism T20S tank and other Innokin devices, so replacements remain easy to source as this platform grows.
Compatible coils: 0.8Ω and 1.5Ω Innokin Prism-S coils.
Compatible e-liquids: Suits 50/50 PG/VG e-liquid best, like the included Platinum range, nic salts also work well, particularly on the 1.5Ω coil. High-VG shortfills aren't recommended, the wattage and airflow here are built for thinner e-liquid.
Charging cable: Standard Micro-USB, not USB-C, worth confirming you have a compatible cable to hand.
Recommended E-Liquids
Every T20-S kit includes a free 10ml Platinum e-liquid, our house 50/50 blend developed to suit low-wattage MTL kits like this one. To explore further:
• VSAVI Platinum E-Liquid 10ml
• New to the range? Try the VSAVI Platinum 10ml Sample Pack to taste a few flavours at once
• Full range: VSAVI Platinum E-Liquids
Looking for a stronger throat hit? Our Nicotine Salts range pairs particularly well with the 1.5Ω coil.
Coil and Usage Guide
0.8Ω Prism-S (pre-installed). A slightly more open draw with a touch more flavour and vapour, a dependable choice for most vapers.
1.5Ω Prism-S. A tighter, more cigarette-like pull, best matched with a higher-strength e-liquid for those who want a strong throat hit without much vapour.
Coil lifespan. Expect one to two weeks of regular use per coil, a burnt or flat taste, or a gurgling sound, means it's time for a fresh one. Let a new coil sit filled for a few minutes before its first use.
Filling the tank. Unscrew the top cap and fill down the side of the chimney, avoiding the centre tube, and leave a small air gap rather than filling to the very top.
Usage Advice
Charge fully before first use, expect around 60 to 90 minutes from empty on a standard Micro-USB charger.
Prime every new coil before vaping, five minutes filled and resting is enough to avoid a dry, burnt first hit.
Stick with 50/50 e-liquid or nic salts rather than thick shortfills, the T20-S's low wattage and airflow aren't designed for high-VG juice.
Use the five-click button lock when carrying it loose in a bag or pocket.
Frequently Asked Questions
Is the Innokin Endura T20-S a good option for someone switching from smoking?
Yes, it's built with that in mind. The tight, restricted draw feels close to a cigarette, and there's nothing to configure, just fill, charge and go.
How long does the battery last?
The 1500mAh battery typically lasts a full day of normal use for most vapers, depending on how often you're puffing.
How long does it take to charge fully?
Around 60 to 90 minutes from empty on a standard Micro-USB charger.
Can the wattage be adjusted?
No, it runs at a fixed 18W with no dial or menu, it's designed to work correctly straight out of the box.
What's the difference between the two coils?
The 0.8Ω (pre-installed) gives a slightly more open draw with more flavour and vapour, the 1.5Ω gives a tighter, more restricted pull with less vapour.
Which e-liquid works best in this kit?
50/50 e-liquid like the included Platinum range, or nic salts for a stronger throat hit. Thick, high-VG shortfills aren't recommended for this kit's low wattage.
Does the kit come with e-liquid included?
Yes, every kit includes a free 10ml bottle of Platinum e-liquid at no extra cost.
How often should the coil be replaced?
Roughly every one to two weeks with regular use, a burnt taste or gurgling sound are the usual signs it needs changing.
Can I vape while it's charging?
Yes, the T20-S supports vape-while-charging.
What's the maximum nicotine strength I can use?
20mg (2%) is the UK legal maximum, and a sensible strength for most smokers switching over.
Does the T20-S leak?
It's a standard top-fill tank, keeping it upright and avoiding overfilling helps prevent leaking, as with any refillable tank.
What colours is it available in?
Four colours: Black, Blue, Grey and Red.
Is this suitable for a complete beginner?
Yes, it's designed specifically for that, one button, no settings, and a familiar, cigarette-like draw.
Can replacement coils be bought separately?
Yes, The Innokin Prism S range of coils are the compatible replacement coils for use with the Innokin Endura T20-S Vape Kit.