Advances in technology, changes in behaviour, convenience, and environmental concerns, have caused an increase in demand for battery powered vehicles, tools, equipment, and devices. Whilst single use non-rechargeable batteries have been around for many years, there is a growing demand for more powerful and durable rechargeable batteries to power cars, work equipment, and the numerous personal devices we use in modern life such as mobile phones, laptops, e-scooters etc.

Rechargeable batteries eliminate most of the risks associated with electricity but do present their own challenges and requirements when it comes to their safe use and handling.

Common causes of battery fires

  • Rapid overheating (a process called thermal runaway) leading to fire or explosion
  • Overcharging – if you charge too long or with too much voltage, it can cause overheating and fires
  • Damaged batteries – may release flammable electrolytes, increasing the risk of fire
  • Exposure to high temperatures – high temperatures speed up battery ageing and increase the chance of battery failure
  • Incorrect disposal when batteries are bundled with other waste they can get compacted causing them to combust, start a fire at the waste facility or even in the trucks

Safety advice

  • Keep batteries in a cool, dry place away from flammable materials and direct sunlight
  • Recycle damaged or swollen batteries at designated recycling points
  • Always use the charger supplied with the device or recommended by the manufacturer
  • To prevent overcharging, use a charger that automatically shuts off or has a timer
  • Never leave batteries unattended while charging and do not charge them overnight
  • Battery charging should be in a dedicated area of your premises kept free from combustible materials
  • If a battery shows signs of swelling, overheating, or emitting smoke, safely remove it and report the incident to appropriate authorities

Learn more:

How to use and charge e-bikes and e-scooters safely (YouTube)
Using electric storage batteries safely (PDF)
Waste collection safety (somerset.gov.uk)
Lithium Batteries – Lancashire Fire and Rescue Service (lancsfirerescue.org.uk)
Batteries don’t belong in bins!

A row of red electric bikes charging outside

About this article

November 9, 2023

Pam Price