🔋 AA batteries

AA batteries — both alkaline and lithium — are permitted in carry-on in any quantity for personal use, and screeners will not stop you for them. A large quantity may produce a dense cluster on the X-ray image and prompt a screener to open your bag for a quick look, but batteries are always permitted through.

Both alkaline and lithium AA batteries are permitted in checked baggage. Lithium AA cells contain a very small amount of lithium — well below the per-cell threshold that would require special handling. Unlike high-capacity lithium-ion packs, individual lithium AA batteries face no special checked-baggage restrictions anywhere in the world.

There is no enforced quantity limit for personal-use AA batteries in carry-on or checked baggage. The key phrase is personal use — a traveller carrying batteries for their own devices faces no restriction. Transporting large commercial quantities of batteries as cargo is a different matter governed by separate freight rules, but that does not apply to typical passengers.

Keeping batteries in their original manufacturer packaging or a dedicated battery case prevents loose batteries from short-circuiting against metal objects in your bag, which is a fire risk rather than a security rule. Organised packaging also produces a cleaner X-ray image and speeds up any manual check if one occurs.