Heads up, underwater photographers: The Department
of Transportation no longer allows travelers to pack any
spare lithium batteries in checked luggage. You must carry
them in your hand luggage. However, electronic devices
with installed batteries can be in your checked luggage.
The regulations are written according to the weight of
lithium in batteries and are difficult to apply, but for the
most part, lithium batteries in consumer electronics fall far
below the weight threshold.
The main thing a diver needs to know is that you may
not pack ANY spare lithium batteries in your checked
bags. Those you carry on should be in the original case, or
in individual plastic bags with tape over their contacts.
There are additional rules concerning the weight of
the lithium in the batteries, but for the most part are of concern only to professionals toting serious electronics,
not cell phones, lap top computers or dive computers.
For the detailed information and to track changes, go to
http://safetravel.dot.gov. You can also call the Department
of Transportation’s Hazardous Materials info line at 800-
467-4922 with specific questions.
PS: These are U.S. regulations. Other countries may
have more stringent requirements and inspectors can be
arbitrary. Subscriber Curt Whitney told us that “bag checkers
in the Bahamas made me throw away eight rechargeable
NiMH batteries which were loose in my camera bag.
They wouldn’t consider being in a plastic bag adequate,
only if they were in the device or a semi-sealed container
which kept them from touching.”
You do what they say, or you won’t get on the plane.