CertiWatt evaluates the product capacity, departure jurisdiction, operating carrier, published dangerous-goods policy, and active recall evidence before returning a verdict.
No active model-specific recall matched this verdict.
status: not_affected
Citation freshness
3 sources checked
Latest source update: May 15, 2026
Capacity math for this model
Recorded calculation
20,000 mAh × 7.4 V ÷ 1000 = 74.0 Wh
Threshold comparison
This is 26.0 Wh below the ordinary 100 Wh passenger power-bank limit.
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 33W Power Bank 20000mAh (Integrated Cable) is recorded at 74.0 Wh and 20000 mAh, so the capacity check is tied to this exact catalog model.
China departures can trigger China 3C evidence checks in addition to Wh limits.
Singapore Airlines (SQ) is evaluated as the operating carrier, with its published dangerous-goods policy included in the citation set.
Xiaomi 33W Power Bank 20000mAh (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
sq.policy.2026.max-2-banks
sq.policy.2026.no-inflight-charging
iata.passenger-guidance.power-bank-threshold.2026
About the Xiaomi 33W Power Bank 20000mAh (Integrated Cable)
Capacity
20000 mAh
Watt-hours
74.0 Wh
Voltage
7.4 V
Certifications
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 Singapore Airlines
Singapore Airlines (SQ) is a Singapore-based carrier. Their dangerous-goods policy is published at www.singaporeair.com/en_UK/nl/corporate/newsroom/n… This carrier adopts the 2026 two-power-bank operating limit.
Verify your specific power bank
The verdict above is for the standard Xiaomi 33W Power Bank 20000mAh (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.
All public source records used by CertiWatt are listed in the source registry. Sources.
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.