CertiWatt evaluates the product capacity, departure jurisdiction, operating carrier, published dangerous-goods policy, and active recall evidence before returning a verdict.
Route-specific signals
These page-specific checks make this verdict about this model, this departure country, and this airline, not a generic power-bank answer.
Xiaomi Power Bank 20000 (Integrated Cable) is recorded at 74.0 Wh and 20000 mAh, so the capacity check is tied to this exact catalog model.
Hong Kong SAR is evaluated as the departure jurisdiction for country-specific power-bank overlays.
VietJet Air (VJ) is evaluated as the operating carrier, with its published dangerous-goods policy included in the citation set.
Xiaomi Power Bank 20000 (Integrated Cable) has no active recall link in this catalog record, so the verdict is driven by capacity, route, airline, label, and rule evidence.
Allowed in carry-on. Final decision rests with airline and security staff.
Rules applied
iata.passenger-guidance.power-bank-threshold.2026
About the Xiaomi Power Bank 20000 (Integrated Cable)
Capacity
20000 mAh
Watt-hours
74.0 Wh
Voltage
3.7 V
Certifications
UN38.3
What to prepare before security
Keep the power bank in cabin baggage only, never checked baggage.
Make sure the Wh or mAh label is readable, or keep the manufacturer specification page available.
Use the linked citations below if staff ask why the device was flagged.
About VietJet Air
VietJet Air (VJ) is a Vietnam-based carrier. Their dangerous-goods policy is published at www.vietjetair.com/…
Verify your specific power bank
The verdict above is for the standard Xiaomi Power Bank 20000 (Integrated Cable). 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.
Common questions for this exact trip
Is this a guarantee at the airport?
No. This is an informational verdict based on published sources. Airline and security staff retain final authority.
Why can the same power bank get different answers by country or airline?
Power-bank rules combine global battery limits with country overlays, airline policies, storage rules, and recall notices.
When should I re-check this route?
Re-check close to departure, especially when the trip involves China, Thailand, Korea, a recalled model, or a battery near a capacity limit.