Travel Smart: Gate Check Reminder, If your hand baggage is taken at the gate to go in the hold, make sure to remove all lithium batteries and devices first phones, laptops, cameras, vapes (if Flying with a Vape: What Happens if You Pack a Vape in Your Carry On? Myster Flying High: The Do's and Don'ts of Traveling with a THC Vape Got smart luggage with a removable battery? Don't forget the hidden power bank! Smart luggage has a built in lithium battery, often under the handle. If you're carrying your smart bag on board, Is Your Lithium Battery Allowed in Your Carry on? Traveling Bags