Is the UGREEN 20000mAh USB-C Power Bank 30W allowed on Korean Air flights from Singapore?
Short answer: Allowed. Below is the citation-backed reasoning, the specific conditions if any, and what to do at security.
Last reviewed
May 15, 2026
Ruleset
2026-05-15
Sources checked
2
Source integrity release gate
passed
Verdictvdt_01KTJM8QSMK5SRWKCQJSBC671G
Allowed
74.0WhUGREEN 20000mAh USB-C Power Bank 30W
Allowed in carry-on. Final decision rests with airline and security staff.
Airline policy applied
Korean Air KE
Confidence
Official
Korean Air is tracked from its official restricted-items page and the Korean regulator power-bank handling rule: power banks must stay in cabin baggage, remain accessible, and not be stored in overhead bins.
checked: 2026-05-31effective: 2025-03-01
Key constraints
Quantity
Korean regulator-backed limit currently modeled as 5 power banks unless a special-purpose exception is documented.
Watt-hour limit
Baseline model: up to 100 Wh normally allowed; 100-160 Wh requires operator approval where accepted; over 160 Wh banned.
Carry-on
Allowed when within capacity, quantity, label, and recall rules.
Checked baggage
Not permitted for spare lithium batteries and power banks.
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
2 sources checked
Latest source update: May 15, 2026
Capacity math for this model
Recorded calculation
20,000 mAh × 3.7 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.
UGREEN 20000mAh USB-C Power Bank 30W is recorded at 74.0 Wh and 20000 mAh, so the capacity check is tied to this exact catalog model.
Singapore is evaluated as the departure jurisdiction for country-specific power-bank overlays.
Korean Air (KE) is evaluated as the operating carrier, with its published dangerous-goods policy included in the citation set.
UGREEN 20000mAh USB-C Power Bank 30W 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
kr.molit.2025-03.no-overhead-bin
iata.passenger-guidance.power-bank-threshold.2026
About the UGREEN 20000mAh USB-C Power Bank 30W
Capacity
20000 mAh
Watt-hours
74.0 Wh
Voltage
3.7 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 Korean Air
Korean Air (KE) is a South Korea-based carrier. Their dangerous-goods policy is published at www.koreanair.com/contents/plan-your-travel/baggag… This carrier is a signatory to the April 2026 two-power-bank limit.
Verify your specific power bank
The verdict above is for the standard UGREEN 20000mAh USB-C Power Bank 30W. 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.