E-bikes, e-scooters, and the charger by your front door

This is not electrical work in the usual sense — there is nothing to install and nothing to certify. It is worth writing about anyway, because the fire service has been warning about it for years and the advice is genuinely simple.

Why these fires are different

A lithium battery in thermal runaway does not behave like an ordinary fire. It goes from the first sign of trouble to fully involved in seconds, burns far hotter than a household fire, produces thick toxic smoke, and can reignite after it appears to be out. A domestic extinguisher is not going to deal with it.

The single most important rule

Charge in a garage, an outbuilding, or a room with a door that can be closed and another way out. Not in a bedroom, and not overnight while everyone is asleep.

Chargers and batteries

• Use the charger that came with it, from the manufacturer. Mismatched replacements are heavily implicated in these fires.
• Be wary of second-hand batteries and cheap conversion kits with no traceable origin.
• Unplug when charging is finished rather than leaving it on indefinitely.
• Stop using a battery that has been dropped, crushed, soaked, or is visibly swollen.

Warning signs

A battery that gets unusually hot, hisses or pops, smells sharp or chemical, or has started to bulge is telling you to move it somewhere safe and away from the building. Do not put it on charge again to see what happens.

The electrical side

Charge from a proper wall socket, not a coiled extension reel or a chain of leads. Make sure the smoke alarm covering that part of the property works — and if you are charging in a garage or outbuilding, consider whether it has any detection at all, because most do not.

If you are unsure, it is always cheaper to ask than to guess. Give us a call and we will tell you straight.