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Click on any term in blue and bold to go to that term's definition. Click on the mini-menu above to learn more about the details of new lithium battery rules for passengers.
Various batteries
Effective January 1, 2008, you may not pack spare lithium batteries in your checked baggage.
You may pack spare lithium batteries in your carry-on baggage. Please see our Spare Battery Tips and How-To sections to find out how to pack spare batteries safely!
If you pack a device containing batteries, secure it against activation by locking the activation switch in the "off" position, placing the device in a protective case, or by other appropriate measures.
For personal use, there is generally no restriction on the number of spare batteries allowed in carry-on baggage. This is the case for cell phone batteries, "hearing aid" button cells, and AA/AAA batteries available in retail stores, as well as almost all standard laptop computer batteries.
See "Larger Batteries" to find out about more powerful batteries, such as extended-life "universal batteries" and batteries designed for professional audio-visual applications.