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Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) will apply new rules regarding the carriage of mobile batteries (power banks) on aircraft starting today, April 24.
Passengers are limited to carrying on board up to two mobile batteries per person (each 160Wh or less). Charging mobile batteries from in‑flight power outlets is prohibited, and using mobile batteries to charge other electronic devices on board is also prohibited. As for spare batteries, those of 100Wh or less have no limit on quantity, while those over 100Wh and up to 160Wh may be carried on board in a total of up to two units, including any mobile batteries.
Until now, the rules prohibited checking in mobile batteries as checked baggage, allowed carry‑on of batteries up to a rated capacity of 160Wh, required insulation to prevent short circuits, and prohibited storage in overhead compartments.
Failure to comply with these rules may result in penalties under Japan’s Civil Aeronautics Act. MLIT also notes that some airlines may have stricter rules and urges passengers to check with their airline.
Based on international standards set by the International Civil Aviation Organization (ICAO), Japan’s Ministry of Land, Infrastructure, Transport and Tourism has established safety standards for air transport of mobile batteries, prohibiting the inclusion of mobile batteries in checked baggage and limiting the number and capacity of mobile batteries carried. ICAO has been applying, since March 27, an emergency amendment to international standards aimed at reducing risks associated with mobile batteries.