• UK fire services attended about 1,760 lithium‑ion battery fires in 2025 [theguardian.com]
• That equals roughly 4.8 fires per day — or one every five hours [qbeeurope.com]
• Incidents have risen by around 147% in just three years [theguardian.com]

So yes — the “every five hours” claim is real and based on nationwide data gathered from fire brigades.

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📈 What’s driving the surge

The rise is strongly linked to how common rechargeable devices have become:

1) Everyday tech

Lithium‑ion batteries are in:

• Phones, laptops, tablets
• Power banks and tools
• Vapes and e‑cigarettes

Around 45% of incidents involve common consumer electronics [internatio…ournal.com]

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2) E‑bikes and scooters (biggest contributor)

• 520 fires in 2025 involved e‑bikes alone [qbeeurope.com]
• That’s nearly one‑third of all battery fires [theguardian.com]

A key issue:

• DIY conversion kits and cheap or incompatible chargers are often involved [ibtimes.co.uk]

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3) Where fires are happening

• 46% occur in homes
• 31% outdoors
• 23% in commercial buildings [internatio…ournal.com]

So this isn’t just an industrial problem — it’s largely a domestic safety issue.

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🔥 Why lithium batteries are so dangerous

These fires behave very differently from normal fires.

The main cause is something called thermal runaway:

• The battery overheats internally
• A chain reaction starts
• It generates its own heat and oxygen
• It can rapidly ignite or explode

[recyclingtoday.com]

Key triggers include:

• Overcharging or using the wrong charger
• Physical damage (drops, impacts)
• Manufacturing faults
• Heat exposure

[safetyculture.com]

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What makes them especially risky:

• They can burn extremely hot (hundreds of °C or more)
• Fires are hard to extinguish
• They can release toxic gases
• They may reignite after being put out

[ibtimes.co.uk]

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⚠️ Why this is becoming a bigger issue now

There are two big trends:

1) Explosive growth in battery use

A typical home now contains 15–25 battery‑powered devices [qbeeurope.com]

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2) Cheap, unregulated products

Authorities highlight risks from:

• Counterfeit batteries
• Poor‑quality chargers
• Unregulated online purchases

[theguardian.com]

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🧠 Bottom line

• The “every five hours” figure is accurate
• Fires are rising rapidly across the UK
• Most are linked to everyday devices, not just vehicles
• The biggest concern is unregulated or mishandled batteries

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✅ Practical safety tips (worth knowing)

Fire services recommend:

• Use manufacturer-approved chargers only
• Avoid charging overnight or unattended
• Keep batteries away from heat and flammable materials
• Don’t use damaged devices
• Recycle batteries properly (don’t bin them)