Every rechargeable vaping device has a lithium battery in it. That is not alarming — so does your phone — but it does mean a few habits are worth having.
Charging
Use the cable type the device is designed for and a normal, reputable plug. Fast chargers meant for laptops are not doing you any favours here.
Charge it somewhere you can see it: a worktop, not a bed or a sofa cushion. Unplug it once it is done rather than leaving it connected overnight out of habit. If the device gets genuinely hot rather than warm while charging, stop using that cable and plug and try another.
Storing
Room temperature, out of direct sunlight, and not in a car in summer. Heat is the main thing that shortens battery life and can affect the liquid.
Keep it upright where you can. Devices with a visible tank section are more prone to leaking through the mouthpiece if they spend a day lying on their side in a bag.
And the one that matters most: keep it away from children and pets. Nicotine liquid is toxic if swallowed. A device on a low table is within reach of a toddler.
When it stops working
Do not put it in your household bin. It contains a lithium cell, and lithium cells in refuse trucks and landfill start fires — this is a real and well-documented problem, not a technicality.
Take it to a battery or small-electricals recycling point instead. Many supermarkets and recycling centres have one, and some vape retailers accept old devices back. If you are unsure what is available near you, ask us and we will point you at the nearest option we know of.
Signs to stop using a device
Retire it if the body is cracked, if it has been through the wash, if it has been dropped hard enough to dent, if it gets hot in normal use, or if the liquid tastes burnt and does not recover. None of these are worth pushing through.