Japan Airlines battery policy summary
Japan Airlines follows the usual lithium battery Wh thresholds and keeps power banks in the cabin. The last dataset refresh for this page was Apr 6, 2026. Trippwiz compares your battery's watt-hour result with the airline's common lithium battery bands so you can check rules faster before packing.
Power bank
Up to 100Wh: Allowed
Carry-on: Allowed
Checked: Not allowed
100Wh to 160Wh: Allowed with airline approval
Carry-on: Allowed
Checked: Not allowed
Above 160Wh: Not allowed
Carry-on: Not allowed
Checked: Not allowed
Spare lithium battery
Up to 100Wh: Allowed
Carry-on: Allowed
Checked: Not allowed
100Wh to 160Wh: Allowed with airline approval
Carry-on: Allowed
Checked: Not allowed
Above 160Wh: Not allowed
Carry-on: Not allowed
Checked: Not allowed
Installed device battery
Up to 100Wh: Allowed
Carry-on: Allowed
Checked: Allowed
100Wh to 160Wh: Allowed with airline approval
Carry-on: Allowed
Checked: Allowed
Above 160Wh: Not allowed
Carry-on: Not allowed
Checked: Not allowed
FAQ
Can I bring a 20000mAh power bank on Japan Airlines?
Usually yes in carry-on baggage, because 20000mAh at 3.7V is about 74Wh and stays under the 100Wh limit band.
Are Japan Airlines spare lithium batteries allowed in checked baggage?
No. Spare lithium batteries should stay in carry-on baggage and be individually protected.
Before you fly
- Match the Wh result on this page against the exact number printed on your battery if the label is available.
- Protect terminals, avoid loose batteries in checked bags, and switch devices off before checking them in.
- Use the official airline source again right before departure because airport and airline rules can change without notice.