Earlier quoted context omitted.
After watching that it made me think that lithium batteries could be turned into a weapon on a plane by terrorists. Assuming that they are that easy to accidentally short them out. Should they not be a banned from being taken in the cabin?
They aren't really that easy to weaponize, at least not any more. The earliest kinds of Lithium cells actually contained elemental lithium, and could easily cause fire or explosion under certain conditions. Think the Dell laptop fire batteries. Lithium _Ion_ batteries produced today are newer designs which use an intercalated Lithium compound (usually with Cobalt, Iron or Manganese) which greatly improves the stabili…
Speaking at least for Canadian airlines, you're incorrect - I asked ahead, and was told that I could bring them, but _must_ have them in my carry on. (and protect the connectors, etc.)