Lithium-ion batteries power nearly everything we use today—smartphones, e-bikes, power tools, laptops, and even critical home appliances. While they’re efficient and convenient, the rapid rise in battery-related fires poses a growing risk to homes and commercial properties.
At Dominion Risk Advisors, we focus on helping property and business owners understand emerging hazards before they turn into losses. Here’s what you need to know about lithium-ion battery fire risk and how to minimize it.
Why Lithium-Ion Batteries Can Become Dangerous
Lithium-ion batteries are designed to hold a large amount of power in a compact cell. When they’re damaged, overcharged, or exposed to heat, that energy can be released suddenly. This may lead to thermal runaway—a chain reaction that can cause the battery to overheat, smoke, or ignite.
Most battery fires start because of:
- Using incompatible or off-brand chargers
- Physical damage (drops, punctures, crushing)
- Charging batteries near flammable materials
- Aging or poor-quality battery cells
- Heat exposure, such as leaving devices in vehicles or direct sunlight
7 Best Practices to Reduce Lithium-Ion Battery Fire Risk
- Charge Safely and Supervise When Possible: Avoid leaving devices to charge unattended for long periods—especially overnight. Place chargers on a hard, non-flammable surface such as a countertop or table.
Never charge batteries on beds, couches, under pillows, or near combustible items. - Use Manufacturer-Approved Chargers: Counterfeit or off-brand chargers may deliver inconsistent power, leading to overheating. Always use chargers specifically designed for the device or purchased from reputable manufacturers.
- Inspect Devices and Batteries Regularly: Stop using any battery or device that shows swelling or bulging, excessive heat, leaking fluid, strange odors, or visible damage. When in doubt, replace it. A compromised battery is highly unpredictable.
- Store Batteries in a Cool, Dry Location: Heat is one of the leading causes of battery failure. Keep devices and spare batteries away from direct sunlight, vehicles in summer, and heat-producing appliances.
- Avoid Overcharging: Many modern devices have built-in protections, but not all do. Unplug chargers when batteries are full, and avoid leaving devices plugged in for days at a time.
- Purchase High-Quality Batteries: Low-cost or counterfeit batteries are more likely to fail. Only buy batteries from trustworthy retailers and avoid no-brand or extremely discounted replacements.
- Dispose of Old Batteries Properly: Do not throw lithium-ion batteries in household trash. They can spark fires in garbage trucks and facilities. Instead, take them to a certified e-waste or battery recycling center.
Extra Tips for Property Owners & Facility Managers
For Homes
- Keep a Class ABC or lithium-ion-compatible fire extinguisher accessible.
- Charge e-bikes, scooters, and power tools away from main living areas, ideally in a garage with good ventilation.
- Avoid charging large devices while asleep or away from home.
For Businesses
- Establish a battery-charging policy and designated charging zones.
- Make sure outlets aren’t overloaded or daisy-chained with multiple power strips.
- Train employees to identify signs of battery failure and respond safely.
- Consider adding temperature sensors or fire-suppression systems in areas with high battery usage (e-bike fleets, warehouses, IT rooms, etc.).
What to Do If a Battery Starts Overheating
If you notice smoke, extreme heat, popping noises, or swelling:
- Unplug the device immediately if safe to do so.
- Move it to a non-flammable surface or outdoors.
- Do not use water to extinguish a lithium-ion battery fire.
- Use a Class ABC extinguisher or call emergency services if the battery ignites.
- Never attempt to puncture, cool rapidly, or open a malfunctioning battery.
Stay Ahead of the Risk
Lithium-ion technology is extremely safe when handled correctly. As devices become more powerful, understanding the risks is essential for protecting your home, business, and the people who rely on them.
Dominion Risk Advisors is committed to providing straightforward guidance that helps you stay prepared and reduce preventable losses. If you’d like a customized risk assessment, contact us.