By Nathan Becker, TCC Regional Public Safety Officer
An increasing number of the devices we use are powered by lithium-ion batteries, and as their use increases, so do the number of fires caused by them. This article will share a few simple practices you can use to greatly reduce the chances of fire developing in your home from lithium-ion batteries.
The Hidden Power in Your Home
- Lithium-ion batteries store massive energy in compact, portable forms. For this reason, they are found in many modern electronics, including smartphones, laptops, and e-bikes.
- Because these batteries use flammable electrolytes, damage or improper charging can lead to thermal runaway, where heat spreads between cells and triggers rapid, toxic fires.
Buy Smart and Stay Certified
- Always purchase batteries and chargers that are listed by a nationally recognized testing laboratory, such as UL, ETL, or CSA, to ensure they meet rigorous safety standards.
- Avoid the temptation of cheap, off-brand chargers, as they often lack the essential protection circuitry needed to prevent overcharging or overheating.
The Rules of Safe Charging
- Only use the original, manufacturer-approved charging cable for your specific device to prevent damage and heat stress.
- Always charge on a hard, flat, and non-combustible surface like a desk or bare floor. Never charge under pillows, on beds, or on couches, which trap heat and increase the risk of ignition.
- Once a device is fully charged, unplug it promptly to avoid unnecessary battery stress.
Charging Large Devices and Extreme Environments
- Large-format batteries found in e-bikes, scooters, and power tools should be charged outdoors whenever possible, away from doors and windows, to ensure that if a fire occurs, it does not trap occupants inside.
- Avoid charging in extreme temperatures; bring cold batteries to room temperature before charging, and never charge in hot, enclosed environments to prevent internal failure.
When to Stop Using a Battery
- Stop using your device immediately if you notice strange odors, smoke, unusual heat, swelling, leaking, or popping noises.
- If a battery shows these signs, move it to a safe, isolated area if possible and contact your local emergency services; do not attempt to use or repair damaged batteries.
Learn More from Your VPSO
During National Fire Prevention Week, October 5-11, TCC’s Village Public Safety Officers (VPSOs) will be visiting schools and communities to talk about the hidden dangers of lithium-ion batteries. Reach out to your VPSO or Tribal office for more information about when your visit will take place.