Ask anyone hesitating about an electric vehicle why, and fire is usually in the top three worries — right alongside range and resale. The fear is understandable: videos of burning e-scooters from 2022 are still shared on WhatsApp, and an EV fire, when it happens, looks dramatic. But the honest, data-backed answer to "do electric cars catch fire?" is more reassuring than most people expect. This guide looks at what the numbers actually show, why EV battery fires behave differently from petrol fires, what India fixed after 2022, and the simple habits that keep the already-small risk even smaller.
Do electric cars catch fire more than petrol cars? What the data says
Across every large dataset published so far, the answer is no — and it isn't close. Studies and government fire records from the US, Europe and Australia consistently find that battery-electric vehicles catch fire far less often per vehicle than petrol or diesel cars. Several analyses put the gap at dozens of times: one widely cited comparison found roughly 25 fires per 1,00,000 electric vehicles against about 1,500 per 1,00,000 petrol vehicles. Poland's national fire service, counting every vehicle fire between 2020 and 2025, logged over 50,000 fires in conventional vehicles versus 87 in EVs.
The reason is straightforward: a petrol car carries 30–50 litres of highly flammable liquid next to a hot engine and exhaust, with fuel lines, pumps and wiring that age. An EV has no fuel to spill and no exhaust to ignite it. What it does have is a large lithium-ion battery — which introduces a different, rarer, but distinctive failure mode.
Why EV fires look scarier: thermal runaway, explained
EV fires are rarer but harder to fight, and that combination is exactly why they make the news. The mechanism is called thermal runaway. A battery pack is made of hundreds or thousands of cells packed together. If one cell overheats — typically beyond roughly 90–120°C — the chemicals inside begin breaking down in reactions that release more heat and flammable gases. That heat can push neighbouring cells over the same threshold, and the failure spreads cell to cell like falling dominoes.
Once running, this chain doesn't need outside oxygen and can't be smothered the way a petrol fire can. Fire services typically need large volumes of water applied for a long time simply to cool the pack, and a damaged battery can reignite hours later. This is the fair criticism of EV fires — severity, not frequency. It's also why every layer of modern EV design, from cell chemistry to the battery management system (BMS), exists to stop that first cell from ever overheating. How a pack is built and managed is covered in more depth in our guide to how EV batteries work.
What actually causes EV battery fires
Almost every real-world EV fire traces back to one of four triggers. Mechanical damage: a severe crash or a hard underbody impact that deforms or punctures cells, causing an internal short. Electrical faults: short circuits from damaged wiring, water ingress into a compromised pack, or poor-quality repairs. Charging abuse: overcharging through cheap, non-standard chargers that bypass the BMS — historically the biggest culprit in two-wheeler fires. Manufacturing defects: rare cell-level flaws, which is why traceability and cell testing are now mandated. India's heat adds background stress — a pack that spends summer afternoons at 45°C ambient works its cooling harder — but heat alone almost never starts a fire in a healthy, well-managed pack.
What India fixed after the 2022 e-scooter fires
The spate of electric scooter fires in 2022 was India's wake-up call. The Ministry of Road Transport and Highways pulled in experts from IISc, IIT-Madras, DRDO's fire-safety lab and others, and their findings pointed largely at battery packs and BMS design that hadn't kept pace with the market's speed. The result was a major tightening of the battery safety standards AIS-156 (for two- and three-wheelers) and AIS-038 Rev 2 (for cars), rolled out in two phases from December 2022 and March 2023.
The amendments read like a checklist against everything that went wrong: mandatory microprocessor-based BMS with over-charge, over-discharge and over-temperature protection; minimum spacing between cells; an additional safety fuse; cell-level testing at accredited labs; a thermal propagation test proving that one failing cell won't torch the pack; and an audio-visual warning that must alert the rider before a thermal event escalates. Since these rules took hold, reported fire incidents have fallen sharply even as India's EV sales have multiplied several times over — the strongest evidence that the 2022 problem was engineering quality, not electric vehicles themselves.
Chemistry matters: why LFP packs changed the equation
A quieter safety upgrade has been happening inside the cells. Most mass-market EVs sold in India today — including most Tata cars and the bulk of electric scooters — use LFP (lithium iron phosphate) chemistry rather than the NMC chemistry common in earlier packs and long-range flagships. The safety difference is structural:
| Property | LFP | NMC |
|---|---|---|
| Thermal runaway onset | ~220–260°C | ~170–210°C |
| Releases oxygen when decomposing | No | Yes |
| Typical use in India | Mass-market cars, most e-scooters | Long-range and performance EVs |
An LFP cell needs far more provocation before it fails, and because it doesn't feed its own fire with oxygen, a failure is likelier to smoulder than erupt. NMC packs are not unsafe — they carry stronger cooling and management to compensate — but LFP's dominance in the mass market is a big, largely invisible reason Indian EVs are safer today. The full trade-offs between the two chemistries are unpacked in our LFP vs NMC guide.
How to keep the risk near zero: an owner's checklist
The residual risk is small, and most of it is within the owner's control. Charge with the manufacturer-supplied or certified charger only — bypassing the BMS with a cheap universal charger is how most two-wheeler fires started. Never buy or fit an aftermarket or "refurbished" battery from an unauthorised seller. If your scooter has a removable pack, let it cool for a while after a long, hot ride before plugging in, charge it in a ventilated spot away from exits, and don't sleep next to a charging battery. Park in shade during heatwaves where you can. Don't ignore warning lights, unusual smells, hissing or a pack that feels hot to the touch — that audio-visual warning now mandated by AIS-156 exists precisely so you have time to act. And after any serious crash or flood submersion, have the battery inspected before you drive or charge again — our EV monsoon safety guide covers the water side in detail.
If the worst happens: what to do in an EV fire
Pull over, switch off, and get everyone away from the vehicle — further than feels necessary, because battery fires release toxic gases and can flare suddenly. Call 101 (fire) or 112 and tell them it's an electric vehicle, so crews arrive prepared for a battery fire. Do not attempt to fight it yourself; water buckets and household extinguishers cannot stop thermal runaway, and proximity is the real danger. If the fire started while charging at home, cut power at the mains if you can do so safely on your way out.
FAQ
Do electric cars catch fire more often than petrol cars?+
What is thermal runaway in an EV battery?+
Why did so many electric scooters catch fire in India in 2022?+
Are LFP batteries safer than NMC batteries?+
What should I do if my EV catches fire?+
The bottom line: electric vehicles catch fire far less often than petrol vehicles, the fires that do happen have identifiable causes that regulation and chemistry have squeezed hard since 2022, and a handful of sensible habits — genuine chargers, genuine batteries, and respect for warnings — take care of most of the rest. Fire risk is no longer a rational reason to avoid going electric. If you're weighing up models, you can compare safety credentials, battery chemistry and range side by side in the EV comparison tool, or start with the full electric car catalog and electric scooter catalog.