Under international air transport rules, portable chargers (power banks) and spare lithium-ion batteries are treated as spare batteries. They are not allowed in checked baggage and must be carried in carry-on so crew can react if a cell goes into thermal runaway. That requirement is not new in 2026 — it reflects long-standing IATA passenger guidance and matches how FAA Pack Safe explains lithium batteries for US flights.
Why the cargo hold is treated differently
Lithium batteries can fail violently: heat, smoke, and fire spread quickly. In the cabin, flight attendants are trained to cool or contain an incident. In the hold, no one sees the first minutes of an event, and suppression is harder once baggage is stacked. That is why regulators require these batteries where they can be monitored — with you, not under the floor.
Europe and other regions say the same thing
The European Union Aviation Safety Agency summarises dangerous goods carried by passengers, including spare batteries, alongside international standards. See EASA — dangerous goods (passengers). National security agencies (for example the TSA on lithium batteries) repeat the carry-on rule for flights they screen. Always confirm wording on your airline’s own dangerous-goods page before you fly.
What happens if a power bank is in checked luggage?
Baggage screening may flag the battery. The airline or airport security can remove it, delay your bag, or refuse the item. You are unlikely to get a damaged or confiscated unit back at the gate. Packing power banks only in hand baggage avoids that outcome.
Practical tips
- Put the power bank in your cabin bag, not a suitcase you will gate-check unless you move the battery to your personal item first.
- Keep the capacity label (mAh or Wh) readable — some airports verify it against limits in our main carry-on guide.
- Tape USB ports or use caps to reduce short-circuit risk in a crowded bag.
If screening pulls your bag aside
Tell officers immediately if a power bank is inside a bag they want to send through oversized or gate-checked handling. Move the battery to your personal item before the bag disappears down the conveyor. If a family member packed a bank you did not know about, ask to repack it into hand baggage rather than abandoning it in the hold.
The same rule applies to integrated battery suitcases: if the pack is removable, remove it; if it is not user-removable, verify airline policy before you buy the ticket. Some smart bags are permitted only when the battery is disconnected and carried in the cabin.
When returning rental camera gear, wipe travel stickers off power banks so the next renter does not inherit a faded label that fails visual inspection. Keeping terminals clean also reduces false alarms on X-ray contrast checks.