Aspire Model K2 Vape 800mAh Battery

An 800mAh rechargeable battery for vapers who want a solid, no-fuss power source. The Aspire Model K2 strips things back to a single-button design, micro-USB charging, and a standard 510 connection, so it threads straight onto the MTL clearomiser tanks you already own.

No screens, no wattage menus, nothing to configure. Built-in over-charge, over-discharge, and atomiser short circuit protection keep things safe without adding complexity. Two colours. One job. It does it properly.

Why vapers choose this:

• Genuinely pocket-sized. At 84mm x 15mm, the K2 disappears into a coat pocket or bag without adding any real bulk.

• One button. That's it. Use five quick clicks to power it on or off, with zero sub-menus or screen settings to mess around with. 

• Three-way protection circuitry guards against over-charging, over-discharging, and short circuits from the atomiser, so the battery looks after itself.

• Standard 510 threading means it works with the MTL clearomiser tanks already sitting in most vapers' drawers.

• Micro-USB charging keeps things simple. Plug in, top up, get on with your day.

Aspire Model K2 Vape 800mAh Battery Features

Built for Simplicity, Not Spectacle

Some batteries chase specs. The K2 chases reliability instead. No OLED display, no adjustable wattage curve, no app pairing. Press the button, vape, charge it when it's low. For anyone burned by an overcomplicated device before, that simplicity is worth something.

The Single Button Does All the Work

One button handles firing and, with a basic click pattern, locking the device when it's not in use. Fewer controls mean fewer things that can go wrong, and it's harder to fire a battery by accident in your pocket.

800mAh Is Enough for Most of the Day

Not every vaper needs a battery the size of a torch. At 800mAh, the K2 comfortably covers light to moderate MTL use across a working day and charges back up quickly. Worth pairing with a spare if you're a heavier user.

Three Layers of Protection You Won't Notice, Until You Need Them

Over-charge protection stops the cell degrading from sitting too long on the charger. Over-discharge protection prevents the battery draining past a safe point. Atomiser short circuit protection cuts the connection if something's wrong with the coil. None of this is flashy. All of it matters.

A 510 Thread That Opens Up Your Options

Because the K2 uses a standard 510 connection, it isn't locked into one manufacturer's tank ecosystem. Browse the wider MTL Tanks range if you're building a setup from scratch, or keep using the clearomiser you've already got.

Aspire Model K2 Vape 800mAh Battery Colours

Two sleek finishes featuring Aspire's iconic 3D carbon fibre weave coating. Stylish, durable, and easy to grip without feeling cheap. 

#buttons

• Black
• Pink

How to Set Up the Aspire Model K2 Vape 800mAh Battery

Two minutes, start to finish. No pairing, no firmware.

1. Charge the battery fully before first use. Connect the micro-USB cable and leave it until the indicator shows a complete charge.

2. Screw your chosen 510 tank or clearomiser onto the top connection until it sits snug. Do not overtighten.

3. Fill the tank with your chosen e-liquid, following the manufacturer's fill line if there is one.

4. Let the coil sit for a few minutes so the wick can properly soak through before your first draw.

5. Press the button to fire. A single press should be enough. Multiple rapid clicks generally toggle the lock function.

6. If the battery locks accidentally, the same click pattern should release it. Check the light indicator to confirm it is active.

What's in the Aspire Model K2 Vape 800mAh Battery Box

The K2 battery itself, in your chosen colour, plus a micro-USB charging cable. No tank, no coils, no e-liquid included. If you need a compatible clearomiser to go with it, the Vape Tanks range has options built for exactly this kind of pairing.

A Standard 510 Battery for Clearomiser and MTL Tanks

The K2 is a general-purpose 510 battery, which means it isn't tied to one specific Aspire tank. It works with clearomisers and MTL tanks that use the standard 510 threaded connection, giving you flexibility if you already own a tank or want to buy the battery and tank separately.

What it won't do is run high-wattage sub-ohm tanks or modern proprietary pod systems on a different connection type. If your tank threads onto a 510 base and is built for MTL vaping, the K2 will drive it. Every battery Pirate Vapes lists is verified for fit and compliance before it goes live, so what you see is what you get.

About Aspire

Aspire has been a fixture in UK vaping hardware for well over a decade, best known for pioneering coil technology that made mouth-to-lung vaping smoother and more consistent.

The brand has moved heavily into Pod Kits and mesh tanks in recent years, but devices like the K2 carry on Aspire's original approach: dependable hardware, simple controls, and a 510 connection that keeps things compatible with the wider vaping ecosystem. A no-nonsense battery from a brand that built its name on no-nonsense engineering.

Stock Up and Save

A spare battery is one of the cheapest ways to stop a flat charge ruining your day. Keep one on the charger while the other is in use and you're never without power.

Every order from Pirate Vapes ships the same day before 4pm, and all batteries are covered by an age-verified checkout for over 18s only. Spend over £25 and delivery is free with Free Pirate Post.

Conclusion

The Aspire Model K2 keeps things simple so you can focus on a smooth, hassle-free vape. A dependable 800mAh cell, a single button, a standard 510 connection, and three layers of built-in protection.

If you want a straightforward replacement or backup battery for your MTL clearomiser tank, without menus or settings to fight with, this is a sensible pick. Browse the wider Vape Batteries range or the full Aspire lineup, and check out Vape Accessories for chargers and spares. Find it, and plenty more, at Pirate Vapes.

FAQs

Is the K2 battery compatible with any tank?

Any tank using a standard 510 threaded connection should fit. It's not designed for proprietary pod systems.

How long does the K2 battery last on a charge?

At 800mAh, most MTL vapers get through a full day of light to moderate use before needing to recharge.

Does the K2 have adjustable wattage?

No. The K2 fires at a regulated 5.5V. It’s built for simple, push-and-vape operation rather than manual wattage tweaking. 

What charging cable does the K2 use?

Micro-USB. A standard charging cable is included right in the box so you can top up straight away.

What safety features does the K2 include?

Over-charge protection, over-discharge protection, and atomiser short circuit protection are all built in.

What colours does the Aspire Model K2 come in?

Black and Pink.