01The rules in detail
Loose lithium-ion and lithium-metal batteries are banned from checked luggage worldwide. In the cabin, protect terminals with tape, caps or original packaging. Limits: ≤100 Wh unrestricted (reasonable quantity), 100–160 Wh two per person with airline approval, >160 Wh prohibited on passenger aircraft. Lithium-metal (non-rechargeable) batteries are limited to 2 g lithium content. Devices with installed batteries can be checked if switched fully off and protected from activation, but most airlines prefer them in the cabin.
02Tips
- Tape terminals or use a battery case.
- Drone pilots: every spare battery in the cabin, none in checked.
03Frequently asked
Can I bring spare lithium batteries in my carry-on?
Yes, with limits. Spare (uninstalled) lithium batteries — camera, drone, laptop — go in carry-on only, terminals protected, same Wh limits as power banks. Batteries installed in devices may be checked, though carry-on is safer.
Can I pack spare lithium batteries in checked luggage?
No. Spare (uninstalled) lithium batteries — camera, drone, laptop — go in carry-on only, terminals protected, same Wh limits as power banks. Batteries installed in devices may be checked, though carry-on is safer.
Are the rules the same outside the US?
Mostly similar for liquids and batteries, which follow international standards, but sharp objects, tools, lighters and self-defense items vary widely by country. Check the departure airport's rules and the destination's laws.
TSA and other agencies allow officers to refuse any item they judge unsafe, and rules change. This page summarises published guidance as of the verified date; confirm on tsa.gov or your airport's site before packing anything unusual.