British Airways power bank rules
What British Airways’s own page says about power banks, checked 22 October 2026.
The rules
- Up to 2 power banks, within a maximum of 4 spare batteries
- Each must not exceed 100 Wh, and the capacity must be shown on it
- Don’t charge a power bank from the seat power
- Keep it in the seat pocket or under the seat in front
- Not allowed in checked bags
- Wh = mAh ÷ 1000 × V
| Using it on board | Not stated on the page we checked |
|---|---|
| Charging the power bank | Seat power must not be used to charge power banks |
| Where to keep it | Seat pocket or under the seat in front |
Source: britishairways.com, checked 22 October 2026. Rules can change and can differ on codeshare flights, so check with the airline that operates your flight.
Common sizes on British Airways
| Power bank | Wh | One power bank |
|---|---|---|
| 10,000 mAh at 3.7 V | 37.0 Wh | Allowed |
| 20,000 mAh at 3.7 V | 74.0 Wh | Allowed |
| 27,000 mAh at 3.7 V | 99.9 Wh | Allowed |
| 40,000 mAh at 3.7 V | 148.0 Wh | Not allowed |
Wh = mAh ÷ 1000 × V. We show 3.7 V as an example; use the voltage printed on yours. Check yours with the calculator →
British Airways cabin bag size
Packing your hand luggage too? See the British Airways cabin bag size and weight allowance, or check your bag against 36 airlines with the cabin bag checker.
Other airlines
UK & Ireland: Aer Lingus · easyJet · Jet2 · Loganair · Ryanair · TUI Airways · Virgin Atlantic
Europe: Air France · Austrian Airlines · Finnair · Iberia · ITA Airways · KLM · Lufthansa · Norwegian · SAS · SWISS · TAP Air Portugal · Turkish Airlines · Vueling · Wizz Air
North America: American Airlines · Delta Air Lines · United Airlines
Middle East & Africa: Emirates · Etihad Airways · flydubai · Qatar Airways
Asia-Pacific: Air India · Air New Zealand · ANA (All Nippon Airways) · Cathay Pacific · Japan Airlines · Malaysia Airlines · Qantas · Singapore Airlines · Virgin Australia