Japan to Ban Power Bank Use In-Flight
New Aviation Safety Rule Effective April 2026
Starting in April 2026, Japan will prohibit the use of power banks on board passenger aircraft. The regulation will apply to all flights to and from Japan, including routes serving Tokyo, Osaka and Kyoto. Passengers will no longer be allowed to use portable chargers to power their devices or recharge the power banks themselves using in-flight outlets.
The measure was introduced by Japan’s Ministry of Land, Infrastructure, Transport and Tourism as part of broader aviation safety reforms addressing risks linked to lithium-ion batteries. While passengers may still carry power banks in their hand luggage, their use during the flight will be strictly prohibited.
Safety Concerns Behind the Lithium-Ion Battery Ban
Lithium-ion batteries, widely used in portable chargers, have been associated with overheating incidents, smoke emissions and occasional onboard fires in global aviation. In several documented cases worldwide, such incidents have led to emergency landings.
Japanese aviation authorities consider the restriction a precautionary step to reduce the likelihood of battery-related incidents inside aircraft cabins. The policy aligns with international efforts to strengthen safety standards concerning battery-powered devices in commercial aviation.
Carry-On Limits for Power Banks
Passengers will still be permitted to carry power banks in hand luggage under strict conditions. Each traveler may bring up to two units, provided that each does not exceed 160 watt-hours. Devices exceeding this capacity or carried in greater quantities will not be allowed on board.
These limits are consistent with existing international aviation rules, which already prohibit lithium-ion batteries in checked baggage due to fire safety risks.
Implications for International Travelers
The new regulation will require travelers flying to Japan or connecting through Japanese airports to adjust their travel routines. Devices should be fully charged before boarding, as mid-flight charging via personal power banks will no longer be permitted.
In-seat USB ports and aircraft power outlets will remain available for direct device charging, but they cannot be used to recharge portable battery packs. Passengers are advised to verify airline-specific policies ahead of travel.
Broader Global Trend in Aviation Regulation
Japan’s move reflects a wider global trend toward tightening safety controls around lithium-ion batteries in air transport. Regulatory authorities worldwide continue to reassess battery-related risks as portable electronics usage increases.
From April 2026 onward, airlines operating to and from Japan will be responsible for enforcing the ban. Travelers should anticipate continued updates to aviation safety regulations as the industry adapts to evolving technological risks.
As International Investment experts report, Japan’s decision signals a broader shift toward stricter lithium-ion battery oversight in aviation, potentially influencing regulatory approaches in other major air travel markets.