Japan's transport ministry will limit the number of power banks allowed on flights and effectively ban their onboard use starting in mid-April, a move prompted by a recent series of alarming incidents. Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has announced that the use of power banks will effectively be banned on planes from April 2026. In a significant move towards bolstering the safety of lithium-ion batteries, Japan's Ministry of Economy, Trade, and Industry (METI) announced the replacement of the DENAN Standard J62133-2 (2021) Appendix 9 with Appendix 12 of the International Electrotechnical Commission (IEC) standard 62133-2. Starting from April 2026, Japan will implement a new aviation safety rule banning the use of power banks aboard passenger aircraft. This regulation will affect all flights to and from Japan, including major cities like Tokyo, Osaka, and Kyoto. For detailed information about test standards, including their scope of application and specific criteria, please always refer to the latest official. Portable battery chargers and other items containing lithium-ion batteries are continuing to frequently cause fires, prompting calls for people to become more aware of the risks these batteries can pose. The government has amended legislation to strengthen the regulations covering such batteries.