Are Battery Packs Allowed In Hand Luggage. Many items such as firearms large batteries food medical equipment machinery or other items are subject to restrictions when traveling with Delta Air Lines. Most airlines simply request that your electrical item has enough battery for the duration of the flight.
Batteries must be taken as carry-on luggage dont pack them into your case to be put in the hold. Spare lithium metal cells or battery packs with a maximum lithium metal content of 2 grams or less. Allowed in checked1 baggage.
A combination of batteries may be carried eg.
If the battery is a spare - that is the battery is by itself and not contained in equipment - it must be in your carry-on baggage only. Here is the breakdown on what batteries are allowed and prohibited in carry-on and checked bags along with some packing tips for safe travel with batteries. If the battery is installed in a device it can be carried in either checked or carry-on baggage. For more information see the FAA guidance on portable rechargers.
