Lithium-ion battery safety

Lithium-ion batteries power many portable electronic devices, including mobile phones, laptop computers, electric scooters and electric bicycles. These batteries are small and powerful but when used incorrectly, they can overheat, catch fire or explode. Download a print-friendly version.

How to be safe:

• Only use chargers and cables that came with the device 
• Do not charge a device while sleeping
• Do not charge a device under pillows, on a bed or on a sofa
• Do not continue to charge the battery once it is fully charged 
• Do not charge or leave electric bikes or scooters near your doors
• Do not place lithium-ion batteries in direct sunlight or keep them in hot vehicles 
• Stop using the battery if it shows signs of swelling, physical damage or malfunctions 
• Never throw a battery in the trash

How to respond: 

• Stop using the device if you notice an odor, change in color, too much heat, change in shape, leaking or odd noises  
• If it is safe to do so, move the device outside and place in a metal container with lid (metal garbage can or pot)
• If a fire starts, immediately leave the area, close the door as you exit and call 911