Japan Implements Groundbreaking Power Bank Ban on All Flights
Japanese authorities have announced a comprehensive ban on the use of portable power banks during flights to and from Japan, set to take effect in April 2026. This significant policy shift by Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) will apply to all aircraft operating in Japanese airspace, including both domestic and international carriers.
New Regulations and Passenger Impact
Under the new rules, passengers will still be permitted to carry power banks in their hand luggage but will be strictly prohibited from using them during flight operations. The ban represents a dramatic reversal from Japan's previous policy established in July 2025, which allowed power bank usage if the devices remained visible at all times.
The regulations introduce several key restrictions:
- Maximum of two portable chargers per passenger in carry-on luggage
- Power banks must not exceed 160 watt-hours (Wh) capacity
- Complete prohibition on charging any lithium-ion powered devices using aircraft power outlets
- Ban on storing power banks in overhead compartments
These measures come as part of broader amendments to Japan's Civil Aeronautics Act, reflecting growing global concerns about aviation safety related to lithium-ion battery devices.
Safety Concerns Driving the Ban
The decision follows mounting evidence of fire risks associated with portable battery chargers. In January 2025, a power bank caused a catastrophic fire that completely destroyed a passenger aircraft in South Korea, though all passengers and crew were safely evacuated. This incident highlighted the extreme dangers posed by damaged or improperly handled lithium-ion batteries in aviation environments.
Japanese safety data reveals alarming trends: portable battery chargers were responsible for 123 fires in 2024 alone, representing a 150% increase from the 47 incidents recorded in 2020. According to Japan's National Institute of Technology and Evaluation, power banks accounted for 30% of all 290 battery-related fire incidents in 2024, surpassing incidents involving power tools (89) and mobile phones (85).
The primary safety concern centers on "thermal runaway" - a dangerous chain reaction where damaged or defective lithium-ion batteries begin to overheat uncontrollably, potentially leading to explosive fires. The pressurized cabin environment of aircraft significantly amplifies these risks.
Impact on UK Travellers and Global Aviation
This policy will have substantial implications for British tourists, as Japan recorded 500,410 visitor arrivals from the United Kingdom in 2025. With Japan welcoming a record 42.7 million international arrivals that same year, the ban affects millions of global travellers.
Japan becomes the first nation to implement a comprehensive national ban on in-flight power bank usage, though numerous airlines have already adopted similar restrictions. Major carrier groups that have banned power bank usage include:
- The Lufthansa Group
- Emirates
- Singapore Airlines
- Cathay Pacific
- Qantas
- Thai Airways
- South Korean Airlines
- Hong Kong Airlines
- Starlux Airlines
- Tigerair
- Air Busan
The aviation industry's growing caution reflects broader recognition of lithium-ion battery hazards, with Japan's national approach setting a potentially influential precedent for other countries and regulatory bodies worldwide.
