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Squonk vape mods are a category of advanced vaping hardware built around one idea: getting the flavour intensity of an RDA without the constant hand-dripping. Each mod houses a squeezable e-liquid bottle inside the device itself. Press the bottle, and liquid feeds upward through a hollow 510 pin into the atomiser deck. The result is fresh, saturated cotton on demand, with no drip tip dripping, no separate bottle of juice in your pocket, and no dry hits from a half-flooded tank. If you vape at high wattages and flavour is your priority, squonking is worth understanding. Use code for 5% off your first order, and free delivery applies on orders over £40.
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Most squonk mods you will find in the UK are regulated. A regulated squonk mod has a chip board that controls power output, provides safety protections, and lets you set your wattage, adjust temperature control if supported, and monitor battery level. They behave exactly like a standard regulated box mod in terms of operation, with the squonk bottle as the only meaningful addition. This is the right choice for the vast majority of vapers, including those moving up from sub-ohm tanks for the first time.
Mechanical squonk mods have no chip. No safety protections, no wattage control, no short-circuit cutoff. The power delivered to your coil is entirely determined by your battery voltage and coil resistance. When it works, the firing is instant and unfiltered. When something goes wrong, there is nothing between your battery and a dangerous failure.
Mechanical squonk mods are for experienced builders only. Before considering one, you need to understand Ohm’s law and how to calculate the amp draw your build puts on your battery. Going below your battery’s continuous discharge rating is not a mistake you want to make. If you are new to squonking or you have not built coils before, stick to a regulated mod. Read our Ohm’s law guide and vape battery safety guide before you consider going mechanical.
A few practical factors separate the right squonk mod from one that will frustrate you within a week.
Bottle size vs how much you vape. Most squonk bottles hold between 7 ml and 10 ml. If you vape heavily, a smaller bottle means more frequent refills. For casual use, the difference is negligible. At 80 W with a dual-coil build, you can burn through 7 ml in a couple of hours. Plan accordingly.
Battery type. Single-battery squonk mods are compact and easy to carry but have shorter battery life. Dual-battery mods give more power and longevity, which matters at higher wattages. Most modern squonk mods use 18650 or 21700 cells. The 21700 gives you more capacity in a single cell, which is useful if you are pushing 80 W or above. Our 18650 vs 21700 battery guide covers the practical differences in detail.
If you want portability, choose a single-battery mod. The trade-off is shorter sessions before you need a recharge or a battery swap.
If you want all-day power at higher wattages, choose a dual-battery or 21700 single-battery mod. You get significantly more headroom.
Standalone mod vs kit. If you already own a BF RDA, a standalone mod is the economical route. If you are starting from scratch, a kit bundle that includes a BF RDA saves you the compatibility research and usually works out cheaper than buying separately.
Wattage range. Most regulated squonk mods cover 80 W to 200 W. For typical single-coil builds at 0.3-0.4 ohm, you are operating in the 40-70 W range. For dual-coil builds, 70-100 W is common. A mod that tops out at 100 W covers most builds comfortably. More wattage headroom costs more and adds weight. Only pay for it if your builds demand it.
Yes. A standard RDA will sit on top of a squonk mod and fire normally, but you will get no squonking function at all. The e-liquid has no route into the deck. To squonk, you need a BF RDA, which is a rebuildable dripping atomiser with a hollow bottom-feed 510 pin.
What to look for when buying a BF RDA:
If you use a solid-pin RDA on a squonk mod, the liquid channel in the 510 is simply blocked. The mod will still fire the coil, but you will need to drip manually through the top, which defeats the point entirely.
Browse our RDA range to find BF-compatible atomisers, or see our RDA, RTA and RDTA explainer if you are still getting familiar with rebuildable formats.
A squonk mod is a box mod with a built-in silicone or plastic e-liquid bottle, typically holding between 7 ml and 10 ml of liquid. The bottle sits inside a hollow cavity in the body of the mod, accessible through a side panel or cutout. When you squeeze the bottle gently, pressure pushes e-liquid up through the mod’s 510 connection and into the atomiser sitting on top.
That 510 connection is where the critical difference lies. A standard solid 510 pin blocks the liquid channel. A squonk mod requires a bottom-feed (BF) RDA, which has a hollow 510 pin with a channel running through the centre of the deck. Liquid travels up through that pin and into the juice well, saturating the cotton without you touching the coil.
Release the pressure on the bottle and any excess liquid gets drawn back down. This two-way flow is what makes squonking relatively clean and controlled once you get the technique right.
Squonk mods first appeared around 2009 but have grown significantly in the UK market over the past several years. Bottle capacities are large compared to most sub-ohm tanks, which means fewer interruptions during a session. Most importantly, the flavour output from a well-built squonk setup is hard to match with a standard coil tank.
We stock squonk mods from Vandy Vape, Dovpo, Wotofo, and HellVape, all of which we have run personally. Here are honest, tier-based recommendations.
The Pulse is a single-battery squonk mod with a large 8 ml bottle and a maximum output of 80 W. The build quality is solid for the price, the fire button has good tactile feedback, and the squonk bottle is easy to squeeze and refill. It pairs naturally with the Pulse BF RDA, which ships with a hollow squonk pin and has a straightforward dual-coil deck. If you are new to squonking and want a low-cost entry point, this is where we would start you. Deck difficulty: easy to intermediate.
The Topside Dual is a dual-battery, top-fill squonk mod running up to 200 W. The top-fill bottle mechanism is one of its defining features: you refill by unscrewing a cap on the top of the mod rather than removing a side panel. That significantly reduces mess. Bottle capacity is 10 ml. The chip is responsive, the menu is clear, and the mod handles most BF RDAs without issue. We have run this one for extended periods and it holds up well. Deck difficulty depends on your chosen RDA pairing: intermediate.
If flavour is your primary goal and you are comfortable building, the Drop Dead RDA is one of the better options in its price range. The postless deck is clean to build on once you get used to it, and it ships with a BF squonk pin. Pair it with a Dovpo or Wotofo mod at the upper end of the range for a setup that competes with significantly more expensive hardware. Deck difficulty: intermediate to advanced.
| Mod | Bottle Size | Max Wattage | Battery Type |
|---|---|---|---|
| Vandy Vape Pulse | 8 ml | 80 W | Single 18650 |
| Dovpo Topside Dual | 10 ml | 200 W | Dual 18650/21700 |
High VG e-liquid is the standard for squonk setups. Most squonk mods pair with low-resistance builds that produce large amounts of vapour at higher wattages, and a 70/30 VG/PG or 80/20 VG/PG blend handles that wattage range well. The higher viscosity of VG means it wicks more slowly, but at sub-ohm resistance levels with open, mesh or parallel coil builds, that is not a problem. The flavour payoff is noticeably better than thinner liquids at the same power.
50/50 liquids, which balance VG and PG equally, are thinner and wick faster, but at 60 W or above they can produce a sharper throat hit than most vapers want from a DL setup. They also burn off faster. For a squonk mod running a standard sub-ohm build, a high-VG shortfill or a high-VG 10 ml is the better choice.
A note on nicotine: most squonk setups are direct lung (DL) devices. At the wattages involved, freebase nicotine at 3 mg/ml is the practical upper limit. Nic salts are designed for MTL devices and low-power hardware. Using high-strength nic salts at 60+ W produces an extremely harsh hit and is not recommended.
Browse our shortfill range or filter by high VG liquids to find compatible options.
Getting the technique right takes a few sessions. Here is what you need to know before you start.
How hard to squeeze. The aim is to saturate the cotton, not flood the deck. A gentle, controlled squeeze lasting roughly one second is usually enough. You will feel the bottle resist slightly when the juice well is full. Stop before it resists hard. Squonk, wait a second, then fire.
How often to squonk. This depends on your wattage and coil type. At 60-80 W with a dual-coil build, you will squonk every few puffs. With a single coil at lower wattage, less often. Let the cotton give you the cue: if the vapour starts tasting thin or slightly dry, squonk again.
What over-squonking feels like. Too much liquid in the deck produces a gurgling sound when you fire, sometimes accompanied by a spitting sensation from the drip tip. If this happens, stop firing, take the RDA off the mod, and gently blow through the drip tip into a paper towel to clear excess liquid. You can also tip the mod upside down briefly to let the excess drain back into the bottle.
What under-squonking feels like. A dry, slightly burnt note in the vapour is the first warning. Stop immediately and squonk before continuing. Firing a dry coil burns the cotton and can ruin it within a single hit. For more on avoiding dry hits, see our dry hit prevention guide.
The technique becomes instinctive quickly. Most vapers have it dialled in within a day or two of switching.
Most squonking frustrations come down to a handful of avoidable errors. Over-squonking floods the deck, causing gurgling and spitting from the drip tip. Under-squonking leaves the cotton dry, producing a burnt taste that can ruin a build within a single hit. Using the wrong BF pin – too short, too long, or a solid pin instead of a hollow one – blocks or restricts the liquid channel entirely. Poor wicking, such as cotton packed unevenly or tucked too tightly into the channel, stops liquid reaching the coil even when you squeeze correctly. Too much cotton in the juice well is one of the most common culprits behind both dry hits and gurgling, as it restricts flow in both directions. Getting the cotton density right, and confirming your RDA has a genuine BF pin, solves most squonking problems before they start.
The squonk bottle is one of the most overlooked parts of maintaining a setup, and it is also where flavour contamination happens most noticeably. Because the bottle holds significantly more liquid than a standard tank, residual flavour from a previous fill can carry over and muddy the taste of the next one, especially when moving between contrasting flavour profiles.
When switching flavours, do this:
Routine maintenance. Even when staying on the same flavour, emptying and rinsing the bottle every two to three weeks prevents residue buildup and keeps the silicone from absorbing permanent flavour taint. If your bottle starts to yellow, crumble, or lose elasticity, replace it. Most manufacturers sell replacement bottles for a few pounds.
A quick note on the 510 channel. The hollow BF pin on your RDA can accumulate residue over time, particularly with sweeter, high-VG liquids. Remove the pin occasionally and rinse it under warm water. A thin pipe cleaner works well for clearing the inner channel without damage.
Browse our full range of squonk vape mods to find the right option for your budget and experience level. For a deeper breakdown of the top models we stock, see our best squonk mods guide.
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Explore our answers to some frequently asked questions.
A squonk mod is a vape mod with a built-in squeezable e-liquid bottle. Pressing the bottle pushes liquid up through a hollow 510 pin into the RDA sitting on top, saturating the coil without hand-dripping. Releasing the bottle draws excess liquid back down.
A regulated squonk mod has a chip board that controls wattage output and includes safety protections. A mechanical squonk mod has no chip – it delivers raw battery power directly to your coil. Regulated mods suit most vapers. Mechanical mods are only appropriate for experienced builders who understand Ohm’s law and battery amp limits.
Yes. You need a BF (bottom-feed) RDA with a hollow 510 squonk pin. A standard RDA with a solid pin will fire normally on a squonk mod, but liquid cannot travel into the deck. Check product listings to confirm whether a squonk pin is included before buying.
A bottom feed pin is a hollow 510 connector that allows e-liquid to travel from the squonk bottle up into the RDA deck. If you look at the 510 pin on your RDA, a solid pin has no hole through the centre. A BF pin has a visible channel running straight through. Many RDAs ship with both types in the box. Check your RDA’s packaging or product page to confirm.
Most squonk bottles hold between 7 ml and 10 ml, depending on the mod. This is larger than the majority of sub-ohm tanks on the market and means fewer refills during a session.
Remove the side panel or access cover to expose the bottle. Most bottles have a fill port at the top. Fill slowly with a unicorn bottle or a thin-tipped nozzle and avoid overfilling, as a full bottle leaves no room to squeeze. Some mods like the Dovpo Topside Dual use a top-fill system that avoids removing any panels at all.
Over-squonking floods the deck with excess liquid, which causes gurgling and spitting from the drip tip. If this happens, stop firing, remove the RDA, and gently blow through the drip tip into a tissue to clear the excess. Most of the liquid drains back into the bottle on its own once pressure is released.
This depends on your coil build and resistance. A single coil at 0.3-0.4 ohm typically performs well between 40-70 W. A dual coil build at a similar resistance usually suits 70-100 W. Start at the lower end of the range for your coil and increase gradually until flavour and vapour production feel right.
Regulated squonk mods are accessible, but squonking involves building coils and wicking an RDA, which requires some knowledge and practice. If you are completely new to vaping, a pod kit or starter mod is a more practical starting point. Squonking suits vapers who are already comfortable with sub-ohm hardware and want to take a step up in flavour and control.
High VG shortfills work best – 70/30 VG/PG or higher. At the wattages most squonk builds operate, high VG liquids perform well and produce better flavour than thinner 50/50 blends. For nicotine, freebase at 3 mg/ml is the practical maximum for a direct lung squonk setup.
Empty as much remaining liquid as possible, remove the bottle if detachable, rinse with warm water two or three times, and leave it to dry fully before refilling with a new flavour. For persistent flavour ghosting, a diluted vinegar soak followed by a water rinse removes most residual taste.
In the long run, yes. Pre-built coils for sub-ohm tanks cost £2.50-4.00 each and need replacing every 1-2 weeks. Cotton and wire for an RDA build costs under 50 pence per rewick. The initial setup cost is higher, but most vapers reach break-even within a couple of months of regular use.
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