Uploaded December 2024 | Updated September 2026, 2 weeks ago

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Why do e-bike and e-scooter batteries explode? The root cause of this is thermal runaway, a ferocious and intense chemical reaction that rapidly increases the temperature inside lithium-ion batteries, resulting in a fire.

Find out more about thermal runaway in our report #BatteryBreakdown which you can download from electricalsafetyfirst.org.uk/battery-breakdown