Originally Posted by
Tizzette
Are there going to be any issues about carrying on a new extra lithium battery for a laptop from US to Lisbon? I'll have a laptop and an iPad as well. Does the new battery need to be unboxed? I assume just put it in a tray at security like a laptop?
You'll be fine. In fact, lithium batteries must be carried on and not checked. All the news that's fit to print:
http://safetravel.dot.gov/tips.html.