British Airways Power Bank Rules 2026
You can take up to 2 power banks of up to 100 Wh, in carry-on only. In-flight use: not recommended under the ICAO rule.
At a glance
Capacity
Up to 100 Wh (≈ 27,000 mAh)Allowed
Over 100 WhNot allowed
Rules
Power banks per passengerup to 2
Use in flightNo airline rule; the ICAO rule applies
Charge in flightNot allowed
Checked baggageNot allowed
What else matters
Where to keep itSeat pocket or bag under the seat; not in the overhead bin
Capacity markingThe capacity must be readable on the power bank, or it can be refused.
Over the limitIt will be taken at security: power banks may not go in checked baggage.
Codeshares and connectionsThe rules of the airline that operates the flight apply. With a connection, follow the strictest one.
SourceOfficial British Airways rule ↗ · reviewed on 9 October 2026
Questions about British Airways and power banks
How many power banks can I take on British Airways?
British Airways allows up to 2 power banks per passenger, in carry-on baggage only.
What is the British Airways power bank capacity limit?
Up to 100 Wh per power bank. Larger power banks are not accepted.
Can I use or charge a power bank on an British Airways flight?
Using it in flight: no separate blanket ban is published; follow crew instructions. Charging the power bank itself on board: not allowed.
Can I put a power bank in checked baggage on British Airways?
No. Power banks are spare lithium batteries and travel in the cabin only.
