How to Charge a Vape Safely: Complete UK Guide

Learning how to charge a vape isn't particularly complicated, but it's worth doing properly. Almost every rechargeable vape uses a lithium-ion battery, and although these batteries are generally very reliable, using the wrong charging equipment or charging a damaged device can increase the risk of overheating or fire.

There's also no single charging setup that works for every vape. Today's vape kits range from tiny pod systems to larger devices with removable batteries, and their charging requirements can be quite different. Some support 2A USB-C fast charging, while others are designed for a lower charging current.

The golden rule is simple: follow the manufacturer's charging instructions for your particular device rather than assuming that any cable or plug that fits will be suitable.

How to Charge a Vape: Step by Step

If your vape has a built-in rechargeable battery, charging it will usually involve a USB-C or, on some older devices, micro-USB connection. Here's the basic process.

1. Check the charging requirements. Look at the user manual, packaging or specifications for a rating such as 5V/1A or 5V/2A. This tells you what type of charging input the device is designed to use.
2. Inspect the vape and cable. Don't charge the device if the charging port is damaged, the cable is badly frayed or the vape itself is swollen, cracked or behaving unusually.
3. Connect the charging cable. Use the cable supplied with the kit where possible, or a good-quality replacement that's suitable for the device.
4. Connect it to an appropriate power source. If the manufacturer supplied or recommends a particular mains adapter, use that. If the kit only includes a USB cable, follow the input specification in the manual.
5. Leave the vape on a hard, flat surface. A desk, worktop or table is much better than a bed, sofa or other soft surface. Keep the device uncovered so that heat can escape.
6. Watch the battery indicator. Most modern vapes use an LED or screen to show that charging is taking place and when the battery is full.
7. Disconnect the vape when charging is complete. Don't leave it permanently plugged in after the battery indicator shows a full charge.

What Charger Should You Use for a Vape?

One of the biggest changes since older vape charging guides were written is that USB-C has become extremely common. That makes charging more convenient, but it also means you shouldn't assume that everything with a USB-C connector has identical charging requirements.

Check your vape's specifications. You may see something like:

• 5V/1A – a maximum charging rate of around 5 watts.
• 5V/2A – a maximum charging rate of around 10 watts.
• USB-C 2A charging – common on many current pod kits.

The important part isn't simply whether the plug fits. It's whether the power source and charging method are appropriate for that particular device.

If you need replacement charging equipment, it's sensible to buy a good-quality cable or charger from a reputable retailer rather than using an unknown or damaged accessory. You can also browse our vape chargers if your device requires separate charging equipment.

Can You Charge a Vape with a Phone Charger?

Sometimes, but don't assume that you can.

Older advice often told vapers never to use a phone charger under any circumstances. That was understandable when vape batteries, chargers and USB standards were rather less sophisticated than they are today, but it isn't a very useful rule for modern devices.

Many current vapes are supplied with a USB-C cable but no wall adapter. In that situation, the manufacturer expects you to provide a suitable USB power source yourself.

The right question isn't therefore, “Is this a phone charger?” It's “Does this power source meet the charging specification for my vape?”

If your vape specifies 5V/2A charging, for example, use a reputable power source that is appropriate for that requirement. If the manual recommends a specific adapter or charging method, follow that recommendation.

What you shouldn't do is grab an unknown charger simply because the connector happens to fit.

How Long Does It Take to Charge a Vape?

There's no universal charging time for a vape. It depends on the size of the battery and the charging rate supported by the device.

Small modern pod systems with fast charging can charge surprisingly quickly, while devices with larger batteries or slower charging circuits naturally take longer. Instead of relying on a generic timer, watch the vape's charging indicator.

Most devices will change the colour of an LED, turn the light off or show 100% on a screen when charging is finished. Your user manual should explain exactly what the indicator means.

Should You Charge a Vape Overnight?

No. Don't leave a vape charging overnight.

UK fire-safety organisations recommend that rechargeable vapes should not be left charging unattended or while you're asleep. You should also disconnect the device once the charging cycle has finished rather than leaving it permanently connected.

This isn't because a vape should normally burst into flames if you forget about it. Properly manufactured devices have safety circuitry. The problem is that damaged batteries, defective chargers and other faults can occur, and you'll be in a much better position to react if you're awake and nearby.

Plug your vape in when you know you'll be around for a while. Once it's charged, unplug it.

Where Is the Safest Place to Charge a Vape?

Charge your vape somewhere where you can see it, on a hard and stable surface with plenty of airflow around the device.

Avoid charging on:

• Beds and bedding
• Sofas and upholstered furniture
• Carpets
• Stacks of paper or other combustible material
• Anywhere the device will be covered
• A hot windowsill in direct sunlight
• A car exposed to very hot or freezing temperatures

London Fire Brigade specifically advises against covering batteries while they're charging and recommends keeping them away from extreme temperatures. Heat is especially important because lithium-ion batteries can become unstable when damaged or severely overheated.

Can You Vape While the Device Is Charging?

Some vape kits support what's known as pass-through charging, which means the electronics allow the device to be used while it's connected to power. Others don't.

If your device doesn't specifically support this feature, don't try to use it while charging.

Even when pass-through use is supported, there's little downside to simply letting the battery charge for a while. Using the device at the same time generates additional heat, and a short charging break isn't exactly the greatest hardship known to humanity.

How Do You Charge a Vape with Removable Batteries?

Larger vape mods may use removable lithium-ion cells such as 18650 or 21700 batteries rather than a permanently installed battery.

Follow the manufacturer's instructions for your particular mod. Some devices support charging through their USB connection, while others may be better suited to charging the cells in a dedicated compatible battery charger.

With removable batteries, condition matters just as much as charging method. Don't use a battery if the outer wrap is badly torn, the cell is dented or the battery shows other signs of physical damage.

Loose batteries also need to be transported properly. Don't put an unprotected battery in a pocket or bag alongside keys, coins or other metal objects, because metal can bridge the terminals and cause a short circuit.

Is It Normal for a Vape to Get Warm While Charging?

A small amount of warmth can be normal during charging, particularly with devices that support faster charging rates.

Getting extremely hot isn't normal.

Disconnect the device and stop using it if you notice:

• Unusual or excessive heat
• A swollen or bulging battery or casing
• Hissing or crackling from the battery
• A strong or unusual smell
• Smoke
• A damaged or melting charging port
• Repeated charging faults

Can You Charge a Damaged Vape?

No. Physical damage is a good reason to stop and inspect a vape before connecting it to power.

A drop onto a hard floor may do nothing more than leave a scratch, but a badly crushed or punctured battery is another matter. Water damage can also make a device unsafe to charge.

If you're unsure whether the battery or charging port has been damaged, replacing the device is usually preferable to taking a chance with a compromised lithium-ion battery.

How to Look After Your Vape Battery

A few straightforward habits can help to keep a rechargeable vape battery in good condition:

• Use the charging equipment recommended for the device.
• Keep the charging port clean and dry.
• Don't expose the vape to extreme heat or cold.
• Don't leave it sitting in direct sunlight or inside a hot car.
• Protect the vape from crushing, punctures and significant impacts.
• Disconnect the charger once the battery is full.
• Replace a device or battery that has become damaged or starts behaving abnormally.

Electrical Safety First also recommends checking charging plugs and sockets for signs of overheating such as scorch marks, buzzing, crackling or excessive heat.

Frequently Asked Questions

Charging Your Vape Safely: The Bottom Line

Knowing how to charge a vape safely mostly comes down to a few sensible habits: use suitable charging equipment, follow the manufacturer's instructions, keep the device somewhere visible and well ventilated while it's connected, and unplug it when it's finished.

Modern rechargeable vape kits are designed to make charging straightforward, but their battery capacities and charging rates aren't all identical. Check the specifications rather than assuming that one charger is right for everything, and never ignore signs of excessive heat or battery damage.

It only takes a few seconds to charge a vape the right way, and that's considerably more convenient than explaining to the fire brigade why your vape spent the night charging underneath a pillow.