To reduce the risk of overheating or fire, portable chargers must remain visible and should not be placed in bags or overhead bins while charging.
As a reminder, the following items are not permitted in checked bags and must be packed in your carry-on: Portable electronic devices containing lithium-ion or lithium metal batteries such as laptops, cell/smart phones, electronic cigarettes, tablets, hand-held games, camcorders, watches, calculators, spare lithium batteries, etc.
For the most up-to-date information about lithium batteries and other hazardous items, visit the FAA’s website.