Japan Bans In-Flight Employ of Power Banks Amid Safety Concerns

Japan is implementing a ban on the in-flight use of power banks, commonly known as mobile batteries, starting in April 2026. This decision follows a series of incidents involving overheating and fires linked to lithium-ion batteries on passenger aircraft. The Ministry of Land, Infrastructure, Transport and Tourism has informed domestic airlines of the new regulations, aiming to enhance passenger safety.

Growing Concerns Over Lithium-Ion Battery Safety

The ban extends to not only using power banks to charge personal devices during flights but also to charging them via onboard power outlets Kyodo News. This measure is a response to increasing concerns about the potential for lithium-ion batteries to ignite due to physical impact or gradual degradation Kyodo News.

Recent Incidents Prompting the Ban

Several incidents have highlighted the risks associated with these devices. A fire on a low-cost carrier operated by Air Busan Co. In January 2025 was believed to have been caused by a defective power bank Kyodo News. In September 2025, a mobile battery began smoking while charging a smartphone on a Japan Airlines international flight NHK. A similar incident occurred in January 2026 in South Korea, where a fire on a plane preparing for takeoff was attributed to a mobile battery in an overhead bin NHK.

New Regulations and Restrictions

Under the new guidelines, based on the Civil Aeronautics Act, passengers will be prohibited from using mobile batteries to recharge their smartphones or other devices during flights NHK. The number of portable chargers each passenger can carry in their cabin will also be limited to two NHK. Mobile batteries remain prohibited in checked baggage, with existing limits on the number and capacity allowed in carry-on luggage.

International Response and Future Regulations

Some foreign airlines have already implemented similar bans on the use of mobile batteries in cabins. The International Civil Aviation Organization (ICAO) is currently studying whether to establish global regulations on the matter NHK.

Key Takeaways

• Japan will ban the in-flight use of power banks starting in April 2026.
• The ban includes charging devices via onboard power outlets.
• Passengers will be limited to carrying a maximum of two power banks in their cabin.
• The decision is a response to safety concerns related to lithium-ion battery fires.
• The ICAO is considering global regulations on the use of power banks on flights.