What are the rules for the carriage of lithium batteries by passengers?
As a passenger, the rules around what you may or may not carry on an aircraft when you travel vary greatly according to what you are carrying with you. Different airlines also have different rules with regards to lithium batteries which are over and above what the IATA Dangerous Goods Regulations stipulate.
So, how do I as passenger, know what I can or not carry?
Whether a lithium battery can be carried by air or not depends on its configuration and either Watt-hour rating (for rechargeable) or lithium content (for non-rechargeable). In addition, spare batteries may not be placed in checked baggage.
Check the table below to see if the battery or battery-powered device can be carried on the aircraft.