Lithium-ion batteries store a lot of energy in a small amount of space. When that energy is released in an uncontrolled manner, it generates heat, which can turn certain internal battery components into flammable and toxic gases.

Lithium-ion battery fires happen for a variety of reasons, such as physical damage (e.g., the battery is penetrated or crushed or exposed to water), electrical damage (e.g., overcharging or using charging equipment not designed for the battery), exposure to extreme temperatures, and product defects.

• Purchase batteries that are only listed by a nationally recognized testing laboratory and labeled accordingly.
• Stop charging a battery once it is full.
• Use charging equipment that is only compatible with your device. To be safe, use only the charging equipment that is supplied with your device.
• Stop using your device if the battery shows signs of damage, such as an unusual odor, excessive heat, popping sounds, swelling, or change in color.
• Have all repairs performed by a qualified professional.

Do not put lithium-ion batteries in trash or recycling bins. Contact your local waste department or product manufacturer for guidance on the correct way to dispose of the device and batteries.