What Are the Lithium Battery Policies for US Flights?
The FAA and TSA restrict lithium batteries on US flights due to fire risks. Passengers can carry lithium-ion batteries under 100 watt-hours in carry-ons, but spare batteries above 160 Wh are banned. Devices like laptops and phones are allowed, but loose batteries must be protected. Airlines enforce these rules to prevent thermal runaway incidents mid-flight. … Read more