Before a failing lithium battery catches fire, there are often a few warning signs. Here’s what to look for:
- Heat: It’s completely normal for batteries to generate some heat when charging or in use. But if your device’s lithium-ion battery feels extremely hot to the touch, there’s a good chance it’s defective and at risk to start a fire.
- Swelling: When a lithium battery fails, another common sign is battery swelling. If your battery looks swollen, you should stop using it immediately. Similar signs include any type of lump or bulge, or leakage from the device.
- Noise: Failing lithium batteries have also been reported to make hissing or cracking sounds.
- Odor: If you notice a strong or unusual odor coming from the battery, this is also a bad sign.
- Smoke: This one’s a little more obvious. But if your device is smoking, a fire has already started.
How Can I Prevent a Battery Fire?
According to the Occupational Safety and Health Administration (OSHA) and the National Fire Protection Association (NFPA), there are several precautions you can take to help prevent lithium battery fires.
- Follow instructions. Always follow the device manufacturer’s instructions for storage, use, charging and maintenance.
- Avoid knock-offs. Only replace batteries and chargers with components specifically designed and approved for your device.
- Watch where you charge. Avoid charging your device on flammable surfaces like under a pillow, on your bed or on the couch.
- Unplug your device. Remove devices and batteries from the charger once they are fully charged.
- Store batteries properly. Lithium-ion batteries should always be stored in a cool, dry place. Don’t place batteries in direct sunlight.
- Inspect for damage. Regularly inspect your device and batteries for the warning signs listed above.
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