Is the UGREEN Power Bank 20000mAh 22.5W with Built-in USB-C Cable allowed on Air China flights from Japan?
Short answer: Allowed. Below is the citation-backed reasoning, the specific conditions if any, and what to do at security.
Ruleset age warning: This ruleset is 33 days old. Battery rules can change quickly; re-check close to departure before treating this verdict as current.
Last reviewed
May 15, 2026
Ruleset
2026-05-15
Sources checked
3
Verdict source gate
passed
Verdictvdt_Z1JFSGA5VK5TNP0B7FFXN4FX4T
Allowed
72.00WhUGREEN Power Bank 20000mAh 22.5W with Built-in USB-C Cable
Allowed in carry-on. Final decision rests with airline and security staff.
Operating carrier policy context
Air China CA
Confidence
Airline official
Air China is tracked from its official lithium-battery and power-bank passenger guidance image: power banks may be carried only in hand/carry-on baggage, must not be checked, should be protected against accidental activation, are allowed at 100 Wh or less, require airline approval over 100 Wh and up to 160 Wh, and are prohibited over 160 Wh.
Source tier: officialchecked: 2026-06-10
Key constraints
Quantity
Not specified on the readable Air China guidance image; apply active route and baseline rules where stricter.
Watt-hour limit
Power banks: plan around the 2026 passenger-facing 100 Wh limit. Generic 100-160 Wh lithium-battery approval language is not shown as a power-bank allowance unless the airline source explicitly says so.
Carry-on
Allowed only as hand/carry-on baggage.
Checked baggage
Not permitted; the guidance marks checked baggage as not allowed for power banks.
“From April 24, 2026, MLIT tells passengers not to put power banks in checked baggage, to carry them on board, keep them to 160 Wh or less, protect each power bank against short circuits, avoid overhead compartments, carry up to two per passenger, and not charge or use power banks during flight.”
“Air China is tracked from its official lithium-battery and power-bank passenger guidance image: power banks may be carried only in hand/carry-on baggage, must not be checked, should be protected against accidental activation, are allowed at 100 Wh or less, require airline approval over 100 Wh and up to 160 Wh, and are prohibited over 160 Wh.”
Global source-monitor health is tracked on the compliance page; this verdict page only shows the citations actually used for this answer.
Citation freshness: The weakest source freshness is 33 days old against a 30-day regulator SLA; re-check close to departure before relying on this verdict.
Why this verdict
CertiWatt evaluates the product capacity, departure jurisdiction, operating carrier, published dangerous-goods policy, and active recall evidence before returning a verdict.
Decisive rule
Allowed in carry-on. Final decision rests with airline and security staff.
No active model-specific recall matched this verdict.
status: not_affected
Citation freshness
3 sources checked
Oldest cited source: May 15, 2026
Capacity evidence for this model
Auxiliary calculation
20,000 mAh × 3.6 V ÷ 1000 = 72.00 Wh
Threshold comparison
28.00 Wh below the passenger power-bank 100 Wh limit. The printed Wh label still takes precedence over mAh estimates.
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 Power Bank 20000mAh 22.5W with Built-in USB-C Cable is recorded at 72.00 Wh and 20000 mAh, so the capacity check is tied to this exact catalog model.
Japan is evaluated as the departure jurisdiction for country-specific power-bank overlays.
Air China (CA) is evaluated as the operating carrier, with its published dangerous-goods policy included in the citation set.
UGREEN Power Bank 20000mAh 22.5W with Built-in USB-C 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
jp.mlit.2026.power-bank-cabin-controls
iata.passenger-guidance.power-bank-threshold.2026
About the UGREEN Power Bank 20000mAh 22.5W with Built-in USB-C Cable
Capacity
20000 mAh
Watt-hours
72.00 Wh
Voltage
3.6 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.
The verdict above is for the standard UGREEN Power Bank 20000mAh 22.5W with Built-in USB-C 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.