Why are airlines banning power banks?

Safety concerns and the developing rules

Airlines and regulators across several countries have tightened rules on portable lithium battery chargers after growing fire‑safety concerns. Recent measures range from bans on using power banks in flight to stricter carriage rules; Japan has signalled a planned ban on the use of power banks aboard domestic flights this spring, and several carriers worldwide — responding to cabin fire risks — have already introduced new restrictions.

What passengers need to know now

• Rules vary by airline and country. Some carriers forbid charging or using power banks during flight; others restrict the devices’ carriage to the cabin rather than checked baggage.
• Capacity and labeling requirements are typically important where limits are specified, but those technical thresholds differ across operators and regulators.
• Enforcement is uneven and often implemented quickly after an incident, so airline‑level policy updates can arrive with little public notice.

How to prepare for travel

• Check before you fly: confirm the latest policy on the airline and the departure/arrival airports’ websites.
• Pack strategically: if the airline allows the device, keep power banks in your carry‑on (not checked baggage) and use them only where permitted.
• Have backups: consider fully charging devices before travel or bringing a smaller, airline‑friendly charger if you rely on in‑flight power.

What remains unclear

It’s still uncertain in many cases whether new rules will only limit use during flights or also restrict carriage altogether, and what capacity levels will be deemed acceptable. Travelers should assume variation is likely and plan conservatively: check policies for every carrier on a trip and avoid carrying large, high‑capacity batteries unless necessary.