British Airways Power Bank Rules 2026
Page updated · Sources and review method
Up to 100 Wh in carry-on only. Power banks above 100 Wh are not accepted.
- Power banks per passenger
- 2
- Checked baggage
- Not allowed
- Onboard use & charging
- Do not recharge power banks using the aircraft seat power supply. Confirm device use with the crew.
- Special conditions
- Capacity must be marked. Store in the seat pocket or in a bag under the seat.
Last checked 2026-11-04
Capacity is only one part of acceptance. Damaged or recalled batteries, unreadable labels and route restrictions can change the answer.
Power bank flight checker
Enter the capacity and voltage from your label to see your result.
Do not recharge power banks using the aircraft seat power supply. Confirm device use with the crew.
Capacity must be marked. Store in the seat pocket or in a bag under the seat.
Common power bank sizes on British Airways
Examples for one device at 3.7 V. Use your actual label; onboard use, certification and condition are separate checks.
| Battery capacity | Energy at 3.7 V | Capacity guidance |
|---|---|---|
| 5,000 mAh | 18.5 Wh | Carry-on only |
| 10,000 mAh | 37 Wh | Carry-on only |
| 20,000 mAh | 74 Wh | Carry-on only |
| 26,800 mAh | 99.16 Wh | Carry-on only |
| 30,000 mAh | 111 Wh | Not allowed |
| 50,000 mAh | 185 Wh | Not allowed |
Read the official policy linked above before departure. This comparison is not airline approval.
Power bank flight FAQs
Quick answers before you pack.
How many power banks can I take on British Airways?
2 per passenger, subject to capacity and route rules.
Can I use my power bank on British Airways?
Do not recharge power banks using the aircraft seat power supply. Confirm device use with the crew.
Can I put it in a checked bag?
No. Keep power banks with you in the cabin, including when your carry-on is checked at the gate.
Can I bring a 10,000 mAh power bank on British Airways?
At 3.7 V it is 37 Wh. Within British Airways’s capacity limit. Check the quantity, label and route conditions below. Check the actual label and the onboard restrictions above.
Can I bring a 20,000 mAh power bank on British Airways?
At 3.7 V it is 74 Wh. Within British Airways’s capacity limit. Check the quantity, label and route conditions below. Check the actual label and the onboard restrictions above.
Can I bring a 30,000 mAh power bank on British Airways?
At 3.7 V it is 111 Wh. This exceeds British Airways’s 100 Wh power-bank limit. Check the actual label and the onboard restrictions above.