Power bank travel guides
Page updated · Sources and review method
Practical answers for the moments a capacity number cannot cover.
IATA Power Bank Rules 2027: the 100 Wh Limit
China power bank rules: the CCC mark
South Korea power bank rules
Power bank: checked bag or carry-on?
How many power banks can you bring on a plane?
Can you use or charge a power bank in flight?
Power banks on connecting flights
Can you fly with a power bank that has no label?
100 Wh to mAh: how big is a flight-friendly power bank?
Power bank watts vs watt-hours: 100 W is not 100 Wh
Which power bank voltage should you use to calculate Wh?
Power bank flight packing checklist
Power bank flight FAQs
Quick answers before you pack.
Can I bring a power bank on a plane?
Generally, a power bank up to 100 Wh can travel in carry-on baggage, subject to the operating airline’s quantity, labelling and route requirements. It must not go in checked baggage. Above 100 Wh, check whether the airline accepts it with approval; above 160 Wh is not allowed in passenger baggage.
How do I convert mAh to watt-hours?
Multiply capacity in mAh by the battery’s nominal voltage, then divide by 1,000. At 3.7 V, a 20,000 mAh power bank is 74 Wh. Use the voltage on your battery label.
Can I put a power bank in my checked bag?
No. Power banks belong in the cabin. If your carry-on is checked at the gate, remove your power banks first.
Is a 100 Wh power bank always allowed?
No blanket guarantee applies. Many airlines allow up to 100 Wh, but quantity, labelling, recall status and local rules also matter. Check your operating airline.
Do the rules change when I connect?
Yes. Every operating airline and departure or transit airport can impose requirements. Check every leg and meet all applicable rules.