The following are some online resources that relate to the regulations and safe allowable transporting of lithium batteries on airlines.
Most batteries are generally safe for air travel. Infrequently, batteries can short-circuit and overheat and in some cases cause sparks or a fire. This page provides tips for travelling with batteries, including how to properly pack spare batteries.
Lithium batteries are dangerous goods, much like gasoline, propane, and sulphuric acid.
In Canada, the shipping and importing of lithium batteries are subject to the Transportation of Dangerous Goods Act, 1992 and its Regulations.
Consumer electronic devices: (watches, calculating machines, cameras, cellular phones, laptop computers, camcorders, etc.) containing lithium or lithium ion cells or batteries when carried by passengers or crew for personal use which should be carried as carry-on baggage. Spare batteries must be individually protected so as to prevent short circuits (by placing in original retail packaging or by otherwise insulating terminals, e.g. by taping over exposed terminals or placing each battery or cells in a separate plastic bag or protective pouch) and carried in carry-on baggage only.
Remember that you should carry spare lithium batteries or lithium batteries contained in equipment—like your cell phone, laptop or tablet—with you in your carry-on baggage.
Lithium metal or lithium ion cells and batteries: Portable electronic devices containing lithium metal or lithium ion cells or batteries, such as watches, calculating machines, cameras, cellular phones, laptop computers*, camcorders, etc., are accepted under the following conditions…