The battery terminals must be protected from short circuit. When a carry-on bag is checked at the gate or at planeside, all spare lithium batteries and power banks must be removed from the bag and kept with the passenger in the aircraft cabin. Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. Passengers should notify flight crew immediately if their lithium battery or device is overheating, expanding, smoking or burning. Thermal runaway can also occur on its own due to manufacturing defects.įlight crews are trained to recognize and respond to lithium battery fires in the cabin. Thermal runaway can occur without warning as a result of various factors, including if the battery is damaged, overheated, exposed to water, overcharged, or improperly packed. While, lithium batteries are required to undergo safety testing, all lithium-ion batteries are capable of overheating and undergoing a process called thermal runaway. Power Banks, cell phone battery charging cases, rechargeable and non-rechargeable lithium batteries, cell phone batteries, laptop batteries, power banks, external batteries, portable rechargers
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