Power Bank Flight Checker
Convert the label on your power bank into watt-hours, then compare it with the common 100Wh and 160Wh passenger battery thresholds.
Most lithium-ion power banks use 3.7V nominal cells. Use the value printed on your label if it differs.
37Wh is at or below the common 100Wh carry-on limit.
Pack it in carry-on luggage, protect the terminals, and confirm your airline rules before flying.
- Formula
- mAh x V / 1000
- Result
- 37Wh
- Pack
- Carry-on
Airline and national rules can be stricter than this checker. This is a packing screen, not legal or dangerous-goods advice.
How to read the label
If the label already shows Wh, use that number. If it only shows mAh, multiply mAh by the nominal voltage and divide by 1000. A 10,000mAh power bank at 3.7V is about 37Wh.
Carry-on, not checked
Spare lithium batteries and power banks are normally packed in carry-on baggage with terminals protected. Airlines can apply stricter rules, especially above 100Wh.