Ottawa Fire Is Warning Residents About Lithium-Ion Battery Dangers. Here's What to Know.
Lithium-ion batteries power nearly everything in the modern home — laptops, power tools, e-bikes, electric scooters, and even toys. But a recent fire in Richmond that destroyed two homes is a stark reminder that these batteries can be dangerous when mishandled, and Ottawa Fire Services wants residents to take note.
What Happened in Richmond
The fire, which broke out in the Richmond area west of Ottawa, was traced to overcharged lithium-ion batteries. Investigators determined that batteries left on a charger beyond their safe charging window overheated and ignited. The resulting fire spread quickly, destroying two homes and leaving families displaced.
Why Lithium-Ion Fires Are So Dangerous
Lithium-ion fires burn extremely hot and are notoriously difficult to extinguish with a standard fire extinguisher. They can also re-ignite hours after appearing to be out. A phenomenon called "thermal runaway" — a chain reaction inside the battery — can cause cells to vent flammable gas, explode, and spread fire faster than a typical household blaze.
Ottawa Fire Services notes that the risk increases significantly when:
- Batteries are charged overnight or left unattended
- Off-brand or counterfeit chargers are used
- Batteries are stored in tight spaces with poor ventilation
- Damaged or swollen batteries are put back on the charger
Safety Tips From Ottawa Fire
Charge during the day. Don't leave batteries charging while you sleep or while you're away from home.
Use the right charger. Only use the manufacturer-supplied or certified charger for your device.
Don't charge on soft surfaces. Charging e-bikes or scooters on carpet, beds, or upholstered furniture restricts airflow and increases heat buildup.
Watch for warning signs. Swelling, unusual heat, or strange smells from a battery are red flags — stop using it and follow manufacturer disposal instructions.
Store safely. Don't store charged batteries in confined spaces, near flammable materials, or in extreme temperatures.
Where to Dispose of Old Batteries
Ottawa residents can drop off old lithium-ion batteries at any of the city's Household Hazardous Waste depots. Check ottawa.ca for locations and hours.
Source: CBC Ottawa
