Are Lithium Ion Batteries Allowed On Planes. Consumer-sized batteries up to 2 grams of lithium per battery may be carried. The watt-hour Wh rating is a measure by which lithium ion batteries are regulated.

In addition the IFR requires lithium ion cells and batteries to be shipped at not more than a 30 percent state of charge aboard cargo-only aircraft says. Since 2009 and 2011 respectively manufacturers have been required to mark lithium ion batteries. Lithium batteries are allowed on planes but the rules vary by airline.
In addition the IFR requires lithium ion cells and batteries to be shipped at not more than a 30 percent state of charge aboard cargo-only aircraft says.
These policies change so if youre planning on carrying on a lot of gear please double check with the airline. These batteries can deliver heat to a dangerous level resulting in a fire in the plane. For lithium-ion batteries a maximum of 2 not exceeding 160 Wh each are allowed in carry-on bag with airline approval. According to FAA and IATA regulations a maximum of two spare larger lithium batteries can be taken on board per passenger.
