Updated: 22nd April 2026 · Powerbank rules in aviation change regularly. We update this article continuously – for binding information please check lufthansa.com or your airline's website before flying.
Can I actually take my powerbank on the plane? And if so, how large can it be – and where does it go? The short answer: Yes, almost every standard powerbank is allowed – but only in carry-on luggage, never in checked luggage. Since 15th January 2026, the Lufthansa Group has significantly tightened the rules for the entire group (Lufthansa, Eurowings, Swiss, Austrian, Brussels). In this guide, we explain all current powerbank rules 2026, show you how to convert milliamp hours (mAh) to watt hours (Wh), and what you need to watch out for at the gate and on board.
Powerbank in Carry-On Luggage 2026 – the Key Rules
Powerbanks contain lithium-ion batteries and are therefore classified as dangerous goods (IATA Class 9). Uniform IATA rules are defined globally for passenger aviation, with individual airlines allowed to be stricter. The three most important basic rules apply everywhere:
- Carry-on luggage only – never in checked luggage
- Max. 100 Wh (approx. 27,000 mAh) allowed without permission
- 100–160 Wh only with prior airline approval, over 160 Wh generally prohibited
Why never in checked luggage? If a powerbank overheats or short-circuits in the cargo hold, the crew cannot respond. In the cabin, however, a fire can be extinguished immediately. Violations are penalised as dangerous goods violations with fines.
Powerbank Capacity: Converting mAh to Wh
Is your powerbank flight-suitable?
Convert from mAh to Wh in 5 seconds.
Rule of thumb: mAh ÷ 270 ≈ Wh
