People traveling this Year will have to beware of new Air Travel ban on
Lithium ION batteries..

A
new U.S. Department of Transportation air travel regulation that came
into effect yesterday may require some to leave their laptop batteries
at home. According to the DOT’s Safe Travel sub-site, folks who travel
by plane are no longer allowed to take spare lithium batteries in their
checked luggage.

Lithium batteries installed inside a device are okay with two
exceptions: lithium-metal models that contain more than two grams of
lithium are forbidden in all types of luggage, and lithium-ion models
with more than eight grams of lithium-equivalent content are restricted
in number. To help travelers wrap their head around the new rules, the
DOT’s Safe Travel page has a guide table with a list of allowed and
forbidden batteries depending on luggage types.