Can I take laptops on a plane in Japan?

You can take this in the cabin, but there are conditions. Yes. Take it out of your bag at the X-ray in most Japanese airports. In checked baggage: allowed, but the battery has to be under 160Wh and the device switched fully off. Keep it with you instead.

Updated September 29, 2026

Yes, within limitsIn the cabin

ConditionsIn checked baggage

Batteries & electronicsCategory

Carry-on: conditionsChecked bag: conditions

What the rule says

Japan follows the international rules on dangerous goods, set out by the Civil Aviation Bureau.

Laptops: carry-on and checked baggage
Where	Allowed?	What applies
In the cabin	Yes, within limits	Yes. Take it out of your bag at the X-ray in most Japanese airports.
In checked baggage	Conditions	Allowed, but the battery has to be under 160Wh and the device switched fully off. Keep it with you instead.

Before you get to the checkpoint

Airlines can be stricter than the national rule. If it matters to your trip, check your airline's own page.
If an item is refused at the checkpoint you cannot go back and check it in — you lose it.
Japanese security staff will ask before opening your bag, and most speak enough English for this.

Why the rule is what it is

Lithium batteries can enter thermal runaway. The rules put them where a crew member can reach them, and cap how much energy one person carries.

If it is refused: You cannot go back and check it in once you are at the screening point. It is taken from you and disposed of, and there is no compensation. Some Japanese airports have a post counter before security where you can mail it to yourself.
Who decides: The officer at the checkpoint, applying the national rules and your airline's own conditions. Where the airline is stricter, the airline wins.

The rule behind every battery question

Lithium batteries are the single biggest fire risk on an aircraft, so the rules are about where the battery sits, not what the device does.

Spare lithium batteries and power banks always travel in the cabin, never in the hold — a fire in the cabin can be dealt with.
Devices with the battery installed can usually go either way, but must be switched fully off in checked baggage.
Watt-hours decide the limit: under 100Wh no approval is needed, 100–160Wh means airline approval and a limit of two, over 160Wh is refused.
If only mAh and volts are printed on the battery: Wh = mAh ÷ 1000 × V.
From 2026 Japanese carriers also ask you to keep power banks in view and not charge from them in flight.

Frequently asked questions

Can I take laptops in my hand luggage in Japan?

Yes, within limits. Yes. Take it out of your bag at the X-ray in most Japanese airports.

Can I put laptops in my checked bag?

Allowed, but the battery has to be under 160Wh and the device switched fully off. Keep it with you instead.

What happens if security stops me with laptops?

It is taken from you at the checkpoint and disposed of. You cannot go back and put it in your checked bag once you are in the queue, and there is no compensation. Some Japanese airports have a post counter before security where you can mail it home instead.