- Lithium-ion batteries power many everyday devices and offer strong performance in a small, rechargeable format.
- They can pose safety risks like overheating, fire, explosion, toxic leaks and disposal-related hazards.
- Warning signs include swelling, leaks, unusual odors, strange sounds and excessive heat.
- Safer use starts with proper charging, careful storage, regular inspection and certified battery recycling.
Tips to Protect Your Home: Lithium-Ion Battery Safety
Lithium-ion batteries have become integral to modern life, powering everything from smartphones and laptops to power tools and electric vehicles. Safety is paramount when it comes to handling and using them due to the risk of lithium-ion battery fires if mishandled. By familiarizing yourself with lithium-ion batteries, you can use them safely and effectively in your everyday life.
Key Takeaways
What are lithium-ion batteries and where are they used?
Lithium-ion batteries are a type of rechargeable battery that use lithium ions as their main component for generating electricity. These batteries have gained popularity due to two main benefits:
- High energy density: They pack a high amount of energy into a smaller and lighter package compared to other types of batteries, which makes them ideal for quickly charging handheld electronic devices.
- Long lifespan: Lithium-ion batteries often last longer than traditional rechargeable batteries. They can go through thousands of charging cycles before their performance drops significantly, making them a smarter investment over time.
Chances are, you interact with devices powered by lithium-ion batteries on a daily basis. These may include smartphones, cordless power tools, cordless vacuums, electric toothbrushes, remote-controlled toys, and other common household items. Larger devices, such as electric and hybrid vehicles, electric lawn equipment, electric wheelchairs and home energy storage systems also commonly rely on lithium-ion batteries.
Identifying lithium-ion battery hazards
Understanding the safety issues related to lithium-ion batteries is essential because of the potential hazards they pose, including the risk of fires. Here are some important safety concerns:
- Fire hazards from thermal runaway: Thermal runaway occurs when heat triggers chain reactions inside the battery. This is typically caused by overcharging, defects or physical damage, rapidly raising its temperature.
- Potential explosions due to overheating: When a lithium-ion battery overheats, it can release flammable gases, which can lead to an explosion if ignited. Physical impact or exposure to high temperatures can increase the risk of the battery overheating and potentially causing lithium-ion battery fires. Typically, larger lithium-ion batteries for equipment like e-bikes or e-scooters pose bigger risks. These batteries store more energy, which means they have a higher chance of causing a fire if something goes wrong.
- Toxic chemical leaks from damaged batteries: Lithium-ion batteries contain toxic materials such as lithium, nickel and cobalt. If a battery is damaged, these materials can leak out, posing health risks to humans, animals and the environment.
- Environmental impacts from improper disposal: Improper disposal of lithium-ion batteries can have serious environmental consequences. When batteries are thrown in the trash or recycling bins, they can end up in landfills or incinerators, where they may release toxic chemicals into the soil, water and air.
Stop using a lithium-ion battery if you notice any of the following: unusual odors, changes in color, excessive heat, alterations in shape, leakage or strange sounds that may point to a battery problem or fire risk. If possible, move the device away from flammable materials. If you see signs of fire, leave the area and contact emergency services immediately.
Possible hazards
Implementing effective battery safety practices
Adopting safety measures
Purchase lithium-ion batteries from reputable brands known for their quality and adherence to safety standards. Batteries that are certified by nationally recognized laboratories have met rigorous testing.
It’s important to adhere to manufacturer guidelines for proper battery use, including recommended charging methods and usage conditions. Make sure to follow the instructions for appropriate storage to maintain battery health and prevent safety issues.
Routine maintenance and handling
- Periodically inspect batteries for signs of damage or wear. Look for physical damage, such as cracks, swelling or leakage, which may indicate internal issues. If any damage is detected, discontinue use of the battery and safely dispose of it according to local regulations to prevent potential lithium-ion battery fires.
Avoid dropping or physically damaging lithium-ion batteries, as this can cause internal damage and increase the risk of a malfunction.
- Always use the charger that is specifically designed for the battery and device you’re charging. Using an incorrect charger can damage the battery and pose safety risks. Don't charge devices on upholstered furniture like beds or couches, or near other easily ignitable sources like blankets, pillows or curtains. Keep an eye on them and remove them from the charger once they’re fully charged.
Overcharging can cause the battery to overheat, leading to a risk of fire. Once the battery is fully charged, disconnect it from the charger.
- Store lithium-ion batteries in a cool, dry place to maintain optimal performance and safety. Keep batteries away from flammable materials and ensure they’re stored securely to prevent physical damage.
Try to avoid extreme temperatures. High temperatures can cause lithium-ion batteries to malfunction or catch fire. Avoid exposing batteries to direct sunlight, and don't leave them in hot vehicles. Similarly, extreme cold can also affect battery performance.
- Avoid throwing lithium-ion batteries in the trash or recycling bins. Wrap them in electrical tape and take them to certified battery recycling centers or drop-off locations. These facilities have the proper equipment and procedures to handle and recycle batteries safely.
Lithium-ion batteries may need special fire extinguishers, equipment or techniques to be safely extinguished. This is especially important for larger, more powerful and potentially more destructive batteries. Always be prepared by knowing how to contact your local emergency services in case of a fire. If you are unsure about handling a lithium-ion battery fire, it's best to leave it to the professionals.
Following these lithium-ion battery safety recommendations can help lower the chances of accidents and support safer use of these batteries in many devices.
Keeping home safety top of mind
Much like other fire risks that require attention, maintaining lithium-ion battery safety is a critical aspect of fire safety at home. Just as you would take precautions with items such as candles, cooking appliances or electrical outlets, it's essential to follow lithium-ion battery management guidelines diligently. Following these safety recommendations can lower the chances of accidents and support the safe use of lithium-ion batteries in various devices.
Quick tip: For lithium-ion battery safety purposes, if it smells unusual, looks swollen, leaks, makes strange sounds or becomes excessively hot, stop using it right away and move away from anything flammable if you can do so safely.
| Lithium battery hazard | What it can look like | Safer next step |
|---|---|---|
| Overheating | Battery or device feels unusually hot while charging or in use | Stop using it, unplug it if safe and keep it away from flammable materials |
| Physical damage | Cracks, dents, punctures or swelling | Do not continue charging or using the battery |
| Leakage or odor | Fluid, smoke or unusual smell | Move away from the area and seek professional disposal guidance |
| Improper disposal | Battery placed in household trash or standard recycling | Use a certified battery recycling center or approved drop-off location |
Want more info on fire readiness and protection? See our tips on home fire prevention and safety.
Looking for further insights into fire safety? Check out our guide on home fire prevention or explore how to secure your home for broader home safety reminders.
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FAQs about lithium-ion battery safety
Overheating, swelling, fire risk after physical damage, chemical leaks and improper disposal. Batteries used in larger devices may pose greater risks because they store more energy.
Keep them in a cool, dry place away from flammable materials, direct sunlight and extreme temperatures. They should also be protected from punctures, crushing and other physical damage.
Stop using it right away. If you can do so safely, move it away from flammable items and do not continue charging it. If there are signs of smoke or fire, leave the area and contact emergency services.
Because damaged or overheating batteries may require special extinguishing methods or equipment, especially for larger batteries. If you’re unsure how to respond, it’s safest to leave it to emergency professionals.
Does insurance cover a fire from a lithium-ion battery?
Yes, most standard homeowners, condo and renters insurance policies cover fire damage caused by a lithium-ion battery, as fires are generally covered regardless of how they start. However, coverage can depend on your specific policy, and you may need to inform your insurer if you have large battery systems (like home energy storage or solar batteries) to ensure if there is coverage.
Yes, most standard homeowners, condo and renters insurance policies cover fire damage caused by a lithium-ion battery, as fires are generally covered regardless of how they start. However, coverage can depend on your specific policy, and you may need to inform your insurer if you have large battery systems (like home energy storage or solar batteries) to ensure if there is coverage.
Your Policy, Policy Declarations or Amended Declarations in effect on the date of loss is the primary source of reference for your coverage, coverage limits and deductible amounts.
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