Short answer: Banned. Below is the citation-backed reasoning, the specific conditions if any, and what to do at security.
Not permitted on this flight.
Do not charge using the seat USB port.
Maximum 5 power banks per passenger.
Carry-on only — never in checked baggage.
Maximum 2 power banks per passenger.
Power bank must not be stored in the overhead bin. Keep it in your seat pocket, on your person, or under the seat.
“South Korean carriers shall ban overhead-bin storage of portable battery banks effective 1 March 2025.”
“Power bank: ≤100 Wh carry-on permitted; >100 Wh but ≤160 Wh forbidden; >160 Wh must be carried as cargo.”
The rule path, citation freshness, and source-integrity checks behind this exact verdict.
CertiWatt evaluates the product capacity, departure jurisdiction, operating carrier, published dangerous-goods policy, and active recall evidence before returning a verdict.
These page-specific checks make this verdict about this model, this departure country, and this airline, not a generic power-bank answer.
Not permitted on this flight.
For Conditional or Banned results, prepare evidence before you reach screening and keep the conversation factual.
Have a readable Wh label or clear mAh/voltage label, any required 3C certificate or 3C mark for China-related screening, and the manufacturer specification or proof page saved offline.
Say that the item is a lithium-ion power bank for cabin baggage only, show the Wh rating and manufacturer evidence, and point to the relevant airline or regulator citation if staff ask.
Ask for the specific reason, request airline or security supervisor review if available, and be ready to leave the device behind, ship it separately where legal, or use a compliant replacement. Do not move a rejected power bank into checked baggage.
Air China (CA) is a China-based carrier. Their dangerous-goods policy is published at www.airchina.com.cn/zh-CN/content/travel_info/prep…
The verdict above is for the standard Xiaomi 18W Power Bank 30000mAh. If your unit has a different serial number range — especially for recalled models — verify directly:
Informational only. Final decision rests with airline and security staff. Why we said this.
No. This is an informational verdict based on published sources. Airline and security staff retain final authority.
Power-bank rules combine global battery limits with country overlays, airline policies, storage rules, and recall notices.
Re-check close to departure, especially when the trip involves China, Thailand, Korea, a recalled model, or a battery near a capacity limit.