Japan is taking a bold step to enhance passenger safety by banning the use of portable power banks on all domestic and international flights, effective from mid-April. This decision comes as a response to the growing concern over the potential risks associated with lithium-ion batteries, which can lead to thermal runaway and cause extreme heat, fire, or even explosions. The International Civil Aviation Organization (ICAO) is also set to introduce new international rules as early as March, aligning with Japan's move. According to Japan's Asahi Shimbun, the country's transport ministry will limit the number of power banks allowed on flights and effectively ban their onboard use. Passengers will be restricted to bringing only two spare batteries, each rated at no more than 100Wh, in their carry-on cabin bags. This nominal 100Wh rating covers most power banks on the market, even the powerful Anker Laptop Power Bank. However, power banks will continue to be prohibited from checked luggage, and passengers must either bring them on board in their carry-on baggage or leave them at home. Many airlines across Asia have already implemented similar restrictions, requiring passengers to keep battery packs with them at their seats rather than in overhead lockers. The risk of battery packs is not just limited to inflight use; the US Federal Aviation Administration (FAA) reported 34 lithium battery-related incidents in 2025, with 11 directly linked to personal battery packs. This highlights the need for stricter regulations to ensure passenger safety. So, while power banks are convenient, it's essential to understand the potential risks and adhere to the guidelines set by aviation authorities to ensure a safe travel experience.
