Every disposable vape pen works the same way: charge it, remove the caps, and inhale. There are no settings to configure, no coils to install, and no liquid to fill. That simplicity is the entire point.
This guide walks through the process step by step, covers proper inhaling technique, explains dosing for first-timers, and troubleshoots the most common problems. It works for every brand — Jungle Boys, Choices Lab, Zaza, Litto, or any other disposable THC pen.
Step 1: Unbox and Charge
Your pen arrives sealed in packaging with the device and a USB-C charging cable (included with most brands). Before your first use, charge it fully.
Plug the USB-C cable into the bottom of the pen and connect it to any USB power source — a phone charger, laptop port, or power bank all work. The LED indicator on the pen will light up to show it’s charging.
A full charge typically takes 45–60 minutes. The LED will change colour or stop blinking when it’s done. Don’t skip this step — using a partially charged pen means weaker vapour production and inconsistent draws.
How often to recharge: Most 2g pens with 650mAh batteries last 200–300 puffs per charge. You’ll need to recharge every few days with regular use. The pen will blink or flash when the battery is low. For more on battery care, see our THC Vape Battery Guide.
Step 2: Remove the Protective Caps
Most pens come with two silicone or plastic caps:
- Mouthpiece cap (top) — remove this to access the mouthpiece where you inhale
- Base cap or airflow plug (bottom) — remove this to allow air circulation
Some brands only have a mouthpiece cap. If you can see a small airflow hole at the base, you’re good to go without removing anything else.
Check the oil window (the small clear section on the side or front of the pen) to confirm there’s oil inside. It should look golden to amber in colour.
Step 3: Inhale to Activate
Disposable vape pens are draw-activated — there are no buttons. Put the mouthpiece to your lips and inhale slowly. The pen detects the airflow and automatically activates the heating element. You’ll see a small LED light at the base flash to confirm it’s working.
Inhaling technique matters:
- Draw slowly and steadily for 2–3 seconds. This isn’t a cigarette — you don’t need to pull hard. A gentle, steady inhale works best.
- Mouth-to-lung (MTL) is the recommended technique for beginners: draw vapour into your mouth first, then inhale into your lungs. This gives you more control over how much you take in.
- Direct-to-lung (DTL) — inhaling directly into the lungs — delivers more vapour per draw and hits harder. Most experienced users prefer this. Not recommended for first-timers.
- Don’t pull for more than 3 seconds on your first few tries. You can always take more puffs, but you can’t un-inhale what’s already in your lungs.
After inhaling, you’ll taste the strain flavour and see a small amount of vapour when you exhale. If no vapour appears, the pen may need charging or the draw may have been too gentle.
Step 4: Wait and Assess
This is the step most first-timers skip — and the reason many people have a bad first experience.
THC effects from vaping typically begin within 2–3 minutes but can take up to 15 minutes to reach full intensity. The mistake is taking 10 puffs in the first 5 minutes, then being overwhelmed when everything kicks in at once 10 minutes later.
First-time protocol:
- Take 2–3 short puffs (2 seconds each)
- Put the pen down
- Wait 15–20 minutes
- Assess how you feel
- If you want more, take 1–2 additional puffs
- Repeat as needed
For regular users: You’ll know your tolerance quickly. Most people settle into 8–15 puffs per session, with 2–4 sessions per day. There’s no universal “right” dose — it depends on your tolerance, the THC percentage, and the effect you’re after.
Troubleshooting Common Problems
No vapour when you inhale:
- Most common cause: dead battery. Charge it.
- Check that both caps are removed and the airflow isn’t blocked.
- Try a slightly firmer draw — some pens need a minimum airflow to activate.
- If it’s brand new and fully charged with no vapour, the device may be defective. Contact customer support.
Harsh or burnt taste:
- You’re drawing too hard or too long. Shorten your puffs to 2 seconds.
- Let the pen rest 30–60 seconds between draws. Chain-vaping overheats the coil.
- If the oil window looks empty, the pen is finished — the coil is burning dry.
LED blinking rapidly:
- Short rapid blinks usually mean the battery is low. Charge it.
- Some pens blink during a draw to confirm activation — this is normal.
- Continuous blinking without drawing may indicate a hardware issue.
Pen feels clogged:
- Condensation can build up in the mouthpiece. Try a slightly harder draw to clear it, or use a thin pin or toothpick to gently clear the airhole.
- Storing the pen upright reduces condensation buildup.
- Warming the pen gently in your hands (not with a lighter) can thin oil that’s settled and blocked the airway.
Leaking oil:
- Usually caused by storing the pen on its side or in a hot environment. Store upright at room temperature.
- Small amounts of oil around the mouthpiece are normal. Wipe with a tissue.
- Significant leaking from the base indicates a seal failure — this is a defective unit.
Brand-Specific Notes
Choices Lab: Standard draw-activated operation. Known for consistent airflow. If you’re searching “Choices Lab vape how to use” — it works exactly like every other disposable described above.
Jungle Boys: 90% THC — go easy on the draws if you’re new. The potency is higher than most pens, so fewer puffs are needed.
Litto: Smaller form factor than most 2g pens. The mouthpiece is narrower, so draws feel slightly tighter. This is by design, not a defect.
Dual-chamber devices (Bodega Boyz, Ace Ultra Premium): These have two oil chambers with a switch or rotation mechanism to choose between strains. Check which side is active before inhaling.
When Is Your Pen Finished?
Three signs your disposable is done:
- Vapour production drops significantly — draws that used to produce visible vapour now produce little or none, even with a charged battery
- Flavour changes — a slight burnt, hollow, or chemical taste means the coil is heating dry
- Oil window is empty — if you can see the oil level, and it’s at or below the intake holes, the pen is finished
When it’s done, dispose of it responsibly. Many UK electronics retailers (Currys, Tesco, Sainsbury’s) have battery recycling points. Don’t throw disposable vapes in regular household waste.
Frequently Asked Questions
Do I need to press a button? No. All disposable vape pens are draw-activated — you just inhale. There are no buttons.
How do I know when it’s fully charged? The LED indicator changes — usually from red (charging) to green (full), or it stops blinking. Most pens take 45–60 minutes for a full charge.
Can I overcharge it? Modern pens have overcharge protection built in. However, it’s still best practice to unplug when the LED indicates full.
Why does my new pen taste weird on the first puff? The first 1–2 draws can taste slightly different as the coil primes with oil. This is normal and should clear after a few puffs.
Can I use my pen while it’s charging? Some pens support pass-through charging (using while plugged in). Others don’t. If your pen doesn’t produce vapour while charging, wait for it to finish. Don’t force it.

