Japan Airlines Power Bank Rules 2026
Page updated · Sources and review method
Up to 100 Wh in carry-on; above 100 Wh through 160 Wh requires approval.
- Power banks per passenger
- 2
- Checked baggage
- Not allowed
- Onboard use & charging
- Do not use power banks to charge devices or recharge them from aircraft outlets.
- Special conditions
- The two-bank rule applies from April 24, 2026. JAL flags a possible lower capacity limit from January 2027; reconfirm for later trips.
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 use power banks to charge devices or recharge them from aircraft outlets.
The two-bank rule applies from April 24, 2026. JAL flags a possible lower capacity limit from January 2027; reconfirm for later trips.
Common power bank sizes on Japan Airlines
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 | Airline approval needed |
| 50,000 mAh | 185 Wh | Not allowed |
Read the official policy linked above before departure. This comparison is not airline approval.
Travelling in 2027? Check the forthcoming IATA capacity change.
Power bank flight FAQs
Quick answers before you pack.
How many power banks can I take on Japan Airlines?
2 per passenger, subject to capacity and route rules.
Can I use my power bank on Japan Airlines?
Do not use power banks to charge devices or recharge them from aircraft outlets.
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 Japan Airlines?
At 3.7 V it is 37 Wh. Within Japan Airlines’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 Japan Airlines?
At 3.7 V it is 74 Wh. Within Japan Airlines’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 Japan Airlines?
At 3.7 V it is 111 Wh. Ask the operating airline for approval before travelling. Carry-on only. Check the actual label and the onboard restrictions above.