Also good practice to carry them in a lipo charging/travel bag and have the battery terminals covered so they can't short out. The bags are cheap and they help to stop the spread of a fire if one of them ruptures. It's good practice to charge inside them too. They hobby shop owner who sold this to me said he had clients whose houses had burned down because they were charging lipo batteries unattended. I have faith in the Mavic's intelligent batteries but since I have the bag it doesn't hurt to charge/store them in here.
Also, for good measure, I carry the MSDS sheets for the batteries in case any airport authorities want to check.
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