Lithium-Ion Battery Fire Extinguishers

Lithium-ion battery fire extinguishers are designed for the particular hazard of rechargeable batteries in phones, laptops, power tools, e-bikes and e-scooters. Browse CheckFire CommanderEDGE LFX, Firechief Lith-Ex and Firexo extinguishers, plus Lith-Ex fire suppression kits.

Lithium-ion battery extinguishers we stock

• CheckFire CommanderEDGE LFX – 3, 6 and 9 litre fluorine-free extinguishers using a water-based agent that discharges as an endothermic foam. CheckFire states the 3 litre is suitable for devices up to 300Wh and the 9 litre for devices up to 900Wh, such as e-bikes and e-scooters; the 9 litre is NTA 8133 certified. See CheckFire.
• Firechief Lith-Ex – 500ml to 25 litre extinguishers containing Aqueous Vermiculite Dispersion (AVD). Firechief rates the 500ml model for batteries under 60Wh, and the Lith-Ex G2 2, 6 and 9 litre models are BSI Kitemarked to BS EN 3.
• Lith-Ex fire suppression kits – a fire-resistant bag paired with a Lith-Ex extinguisher, for suppressing and removing a burning phone, tablet or laptop. See Firechief.
• Firexo – a compact 500ml aerosol extinguisher that Firexo lists as covering lithium-ion battery fires as well as other fire classes. See Firexo.

How to choose a lithium-ion battery fire extinguisher

• Match it to the battery size. Where a manufacturer states a battery size limit, usually in watt-hours (Wh), choose a model that covers the largest battery on site.
• Look for test evidence. National and European standards for these extinguishers are still being developed, so look for testing to the Dutch NTA 8133 method or independent certification.
• Plan the wider response. Lithium-ion batteries can re-ignite after a fire appears to be out. Consider fire blankets (including lithium-ion battery blankets), safe storage cabinets and your fire risk assessment.

Safety note: London Fire Brigade advises that if an e-bike or e-scooter battery starts to smoke or catches fire you should get out, raise the alarm, call 999 and not try to tackle it yourself.

Why buy from JEM Systems UK

JEM Systems UK is an authorised distributor of CheckFire and Firechief, and every extinguisher we supply is genuine, brand new and factory sealed. Order online with fast, tracked UK delivery. Browse all fire extinguishers, or compare water mist, wet chemical, CO2, powder and foam extinguishers.

Lithium fire extinguisher FAQs

What fire extinguisher should I use for lithium batteries?

Choose an extinguisher designed and tested for lithium-ion battery fires, sized for the batteries on site, such as the LFX or Lith-Ex ranges. Check the manufacturer's stated battery size limits and follow your fire risk assessment.

Why are lithium-ion battery fires hard to put out?

A damaged, overcharged or overheated cell can go into thermal runaway, where heat builds faster than it can escape. The failure can spread from cell to cell, give off toxic gases and re-ignite after the flames are out.

What is AVD?

AVD stands for Aqueous Vermiculite Dispersion, the agent used in Firechief Lith-Ex extinguishers. Firechief says Lith-Ex quickly cools and forms a thermal barrier to stop fire propagation.