Almost every vape runs on a lithium-ion battery, either built into a pod kit or as a removable cell in a larger mod. These batteries are in every phone and laptop, and problems are rare. When they do happen, they nearly always come down to a handful of avoidable habits.
Charging
- Use the cable that came with the kit, or a decent USB-C cable, into a standard USB plug or port.
- Don't leave a kit charging overnight or unattended, and don't charge it on a bed or sofa.
- Unplug once it is full. Most kits show a light that changes when charging is complete.
- If a device gets hot while charging, unplug it and stop using it.
Carrying spare cells
Loose 18650 or 21700 cells for mods should never go in a pocket or bag on their own. Keys and coins can bridge the terminals and short the cell. A plastic battery case costs pennies and removes the risk.
Flying soon? Vapes and spare batteries travel in hand luggage only. The full rules are in our guide to taking a vape on a plane.
Warning signs
- A swollen or bulging device or cell.
- Torn or damaged wrap on a removable battery.
- Getting hot in normal use, or a chemical smell.
Any of these means the battery is finished. Stop using it and recycle it.
Recycling
Vapes and batteries must not go in household bins, where they cause fires in bin lorries and recycling plants. Take them to a household recycling centre or a shop battery bin. Retailers that sell vapes are required to take old ones back.
Questions readers ask
Is it safe to charge a vape overnight?
It is best avoided. Charge where you can see it and unplug when full.
How do I dispose of an old vape?
Take it to a household recycling centre or a retailer's take-back point. Never put it in a household bin.