What are the rules for bringing electronics on a plane?
You can bring most personal electronics on a plane, in either carry-on or checked bags. The key rule is about lithium batteries: power banks, spare batteries and e-cigarettes must go in your carry-on, never in checked luggage. Batteries up to 100 watt-hours are allowed without approval; 100 to 160 Wh need airline approval; larger ones are generally not allowed on passenger planes.
Carry-on vs. checked bags
- Laptops, tablets, phones, cameras, e-readers: allowed in both, but the FAA recommends keeping them in carry-on. If you check a laptop, switch it fully off and protect it from damage.
- Power banks and spare lithium batteries: carry-on only, and since March 27, 2026 the ICAO rules allow at most 2 power banks per passenger. Protect the terminals (original packaging, a case or tape) to prevent short circuits.
- E-cigarettes and vapes: carry-on only, and you cannot use or charge them on board.
- Smart bags with built-in batteries: the battery must be removable if the bag is checked.
Security screening (TSA)
- Laptops larger than a phone and other large electronics usually go in a separate bin in standard lanes.
- Airports with newer CT scanners and TSA PreCheck lanes often let you leave electronics in your bag; follow the officers' instructions.
- Make sure devices are charged; you may be asked to switch them on.
How many devices can you bring?
TSA does not set a limit on the number of personal devices, including two laptops. Airlines limit carry-on size and weight, and spare batteries between 100 and 160 Wh are limited to two per passenger.
FAQ
Can I put electronics in my personal item?
Yes. A backpack or laptop bag under the seat is a good place for them.
Do all electronics have to be in carry-on?
No. Only lithium batteries that are not installed in a device, power banks and vapes must be carried on. Other devices can be checked, though it is riskier.
What is the 3-1-1 rule?
Liquids in carry-on must be in containers of 3.4 oz (100 ml) or less, all fitting in one quart-size bag, one bag per passenger.
Can I use a power bank during the flight?
Not for recharging: since March 27, 2026 the ICAO rules (followed in IATA guidance) ban recharging power banks on board and allow at most 2 per passenger. Some airlines also ban using them to charge devices in flight, so check your airline and follow the crew's instructions.