Power bank rules on connecting/international flights

Question

I have read (and had confirmation from my airline) that powerbanks must have a "3C" stamp on them to fly on domestic flights within China. Does this apply for China-Hong Kong flights? I am flying from the UK to HK via Beijing and cannot find the rules on wheather this applies for China-HK flights as well. Thanks!

Answer

Regarding power banks on flights within China and to Hong Kong, here is a detailed breakdown:

Domestic Flights within China:

Power banks carried on domestic flights must have a "3C" certification stamp, indicating that they meet Chinese safety standards.
The capacity limit is generally 100Wh per device for carry-on; some airlines may allow up to 160Wh with prior approval.
Power banks must always be carried in the cabin (carry-on baggage) and cannot be checked in.

International Flights from China to Hong Kong:

China-Hong Kong flights are treated as international flights, even if operated by a Chinese carrier. Therefore, the domestic "3C" certification requirement is usually not strictly enforced by Hong Kong authorities.
However, the airline may still apply its domestic rules when departing from a mainland airport. It is safest to carry a 3C-certified power bank to avoid any check issues at Beijing airport.
International aviation safety rules still apply regarding power bank capacity:

Devices under 100Wh can typically be carried freely in cabin baggage.
Devices between 100Wh and 160Wh may need airline approval.
Devices over 160Wh are generally prohibited.

Practical Tips:

Always carry the power bank in your carry-on bag, not in checked baggage.
Ensure your power bank clearly displays its capacity (in Wh or mAh) and certification markings.
Check with both your departing airline and connecting airline if you have concerns, especially for flights originating in China and connecting internationally.
When in doubt, use a 3C-certified power bank under 100Wh to guarantee compliance with all Chinese domestic and international transit rules.

In summary, while the "3C" stamp is mainly a domestic requirement, bringing a certified power bank is the safest approach for flights connecting from China to Hong Kong. Capacity limits and cabin-only rules still apply.

Power bank rules on connecting/international flights

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