SWISS power bank rules
What SWISS’s own page says about power banks, checked 22 October 2026.
The rules
- Max. 2 power banks per passenger (within 20 batteries in total)
- Up to 100 Wh; 100–160 Wh needs the operator’s approval
- Carry-on only, not in checked baggage
- Do not charge or use power banks on board
- Only in the seat pocket, on your person or in carry-on under the seat in front, not in overhead lockers
| Using it on board | Do not use (exceptions with approval for approved medical devices) |
|---|---|
| Charging the power bank | Do not charge on board |
| Where to keep it | Seat pocket, on your person or in carry-on under the seat in front; not in overhead lockers |
Source: swiss.com, checked 22 October 2026. Rules can change and can differ on codeshare flights, so check with the airline that operates your flight.
Common sizes on SWISS
| Power bank | Wh | One power bank |
|---|---|---|
| 10,000 mAh at 3.7 V | 37.0 Wh | Allowed |
| 20,000 mAh at 3.7 V | 74.0 Wh | Allowed |
| 27,000 mAh at 3.7 V | 99.9 Wh | Allowed |
| 40,000 mAh at 3.7 V | 148.0 Wh | Needs approval |
Wh = mAh ÷ 1000 × V. We show 3.7 V as an example; use the voltage printed on yours. Check yours with the calculator →
SWISS cabin bag size
Packing your hand luggage too? See the SWISS cabin bag size and weight allowance, or check your bag against 36 airlines with the cabin bag checker.
Other airlines
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