Uwell Caliburn A3S Pod Kit

Uwell Caliburn A3S Pod Kit

A refillable MTL pod kit that keeps things simple: fill the pod from the side, inhale, and it fires. The Uwell Caliburn A3S runs a 520mAh battery, a fixed 16W output, and 2ml refillable pods with built-in mesh coils.

There are no buttons and no settings. It is draw-activated, so a slow pull on the mouthpiece is all it takes, which makes it a natural step for ex-smokers and anyone moving on from disposables.

As a reusable device you fill yourself, it sits in the Refillable Pod Kit category rather than the prefilled one, and it works out far cheaper to run than a Rechargeable disposable habit over time.

Why vapers choose this:

• No buttons, no fuss. Fill it, inhale, done. There is nothing to set, which makes the A3S one of the easiest pod kits to live with.

• 2ml side-fill pods with a clear window and a silicone stopper for tidy refills.

• Two mesh coils included, so you can try both draws out of the box.

• 520mAh with 2A USB-C, topping up quickly between sessions.

• Cheap to run. A one-off device plus your own e-liquid costs a fraction of a weekly disposable spend.

Uwell Caliburn A3S Features

520mAh Battery With 2A USB-C Charging

The 520mAh cell is sized for a slim MTL device and comfortably covers a light day of vaping. Heavier users will top up by evening.

Charging is over USB-C at 2A, so it refills quickly rather than trickling. A logo-shaped light shows the battery level as you vape.

Fixed 16W MTL Output

There is no wattage to dial in. The A3S runs a fixed 16W and matches the pod automatically, which keeps things simple and consistent.

The draw is a genuinely tight mouth-to-lung, closer to a cigarette than most pods, so it suits nic salts and ex-smokers rather than cloud chasers.

2ml Side-Fill Refillable Pods

Each pod holds 2ml and fills from the side through a silicone stopper, so the pod stays on the device while you top up. A clear window makes it easy to see when you are running low.

Filling your own means you pick the flavour and strength every time. Keep your favourite refills and pods stocked, and the kit keeps going.

Two Mesh Coils in the Box: 0.8 and 1.0 ohm

The kit ships with both pod options. The 0.8ohm pod gives a warmer, slightly fuller vape, while the 1.0ohm runs cooler and tighter for the closest feel to smoking.

Mesh coils heat the liquid evenly, which is what gives the Caliburn line its reputation for clean flavour.

Draw-Activated With a Logo Battery Light

No fire button and no menu. You inhale, and it fires, the same action as a cigarette. The Caliburn logo lights up as you draw and shifts colour to flag the battery level, so you are never caught out.

Coil and E-Liquid Pairing

Both pods are built for thin liquid: 50/50 e-liquid or nic salts, not thick high-VG shortfills, which wick too slowly at 16W and can burn a coil early.

Nic salts give the smoothest throat hit and suit the tight MTL draw. As a rough guide, 10mg suits lighter smokers and 20mg suits heavier ones, while 50/50 freebase in lower strengths suits anyone stepping down gradually. The 0.8ohm pod pairs well with slightly lower strengths, the 1.0ohm with higher.

Uwell Caliburn A3S Colours

Six colours are stocked, from understated to bold. Midnight Black is the discreet everyday pick, while Ocean Flame and Iris Purple stand out.

#buttons

• Iris Purple
• Lake Green
• Midnight Black
• Moonlight Silver
• Ocean Flame
• Space Grey

How to Set Up the Uwell Caliburn A3S

Quick to fill and go.

1. Charge over USB-C until the logo light shows a full charge.

2. Pull the pod off the device. The magnets release with a gentle tug.

3. Open the side stopper and add your e-liquid, tilting the pod slightly so air escapes and avoiding the central airflow tube.

4. Press the stopper back in firmly, then leave the pod to stand for around five minutes so the coil wicks fully.

5. Click the pod back in. The magnets seat it in place.

6. Take a slow, gentle draw to fire the coil, then vape as normal.

Compatibility and Refills

The Caliburn A3S takes Caliburn A3S side-fill pods and the original Caliburn A3 pods, both in 0.8ohm and 1.0ohm mesh, so you have plenty of refill options.

Caliburn G, G2, and GK2 pods do not fit, as those use a different pod shape. When a pod fades, fit a fresh one from the Caliburn A3S Replacement Pods. Every Uwell pod listed at Pirate Vapes is matched to its device, and you can browse the wider Uwell range for pods and kits.

About Uwell

Uwell built the Caliburn name into one of the most trusted MTL pod families in the UK, known for clean flavour and simple, reliable devices.

The A3S is the pared-back, side-fill member of that family. It uses Uwell's Pro-FOCS flavour tuning and the same tight, cigarette-style draw the range is known for, in a slim aluminium body aimed squarely at everyday vapers who want fuss-free refillable vaping.

Stock Up and Save

The appeal of a refillable kit is the running cost. The device is a one-off, and after that you are only buying pods and e-liquid, which comes in well under a weekly disposable spend.

Pirate Vapes keeps checkout age-verified, and you can bundle pods and liquid through our Multi-Buy Deals to bring the cost down further. The Crow's Nest can set up a repeat delivery so a fresh pod always arrives in time.

Over-18s only, same-day dispatch before 4 pm, and Free Pirate Post on orders over £40.

Conclusion

The Uwell Caliburn A3S Pod Kit is a simple, cheap-to-run refillable MTL device: a 520mAh battery, fixed 16W, 2ml side-fill pods, and two mesh coils in the box to cover both draws.

It is a strong pick for ex-smokers and disposable switchers who want a tight, cigarette-style vape without buttons or settings. Add a USB-C cable, since one is not included, fill with 50/50 or nic salt, and you are set.

Browse more Vape Accessories or head back to Pirate Vapes to finish your order.

FAQs

What pods does the Uwell Caliburn A3S Pod Kit use?

The Uwell Caliburn A3S Pod Kit takes Caliburn A3S side-fill pods and the original Caliburn A3 pods, both in 0.8ohm and 1.0ohm mesh. Caliburn G, G2, and GK2 pods do not fit.

How long does the Uwell Caliburn A3S Pod Kit battery last?

The 520mAh battery covers a light day of MTL vaping, with heavier users topping up by evening. The 2A USB-C charging refills it quickly, so a short charge tops you back up.

What e-liquid should I use in the Uwell Caliburn A3S Pod Kit?

Thin 50/50 e-liquid or nic salts, not thick high-VG shortfills. Nic salts give the smoothest throat hit and suit the tight MTL draw, with 10mg or 20mg the usual choices.

Is the Uwell Caliburn A3S Pod Kit good for beginners?

Yes. The Uwell Caliburn A3S Pod Kit has no buttons or settings, fills from the side in seconds, and fires on inhale, so it feels close to a disposable at a much lower running cost.

Does the Uwell Caliburn A3S Pod Kit do big clouds?

No. The Uwell Caliburn A3S Pod Kit is a mouth-to-lung device with a fixed 16W output and a tight draw. It is built for flavour and a cigarette-style hit rather than large clouds.

Why does my Uwell Caliburn A3S Pod Kit pod taste burnt?

A burnt taste usually means the coil ran dry. Prime each new pod for around five minutes, keep it above a quarter full, and avoid chain vaping. A scorched coil will not recover, so fit a fresh pod.