Is the INIU INIU B42 18W 20000mAh Power Bank - ProgressBar2 allowed on Asiana Airlines flights from Thailand?

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: 5
Source integrity release gate: passed

Verdictvdt_MBAJB45WVNQBC4STRFRZ7VDW0K

Allowed

74.0WhINIU INIU B42 18W 20000mAh Power Bank - ProgressBar2

Allowed in carry-on. Final decision rests with airline and security staff.

Airline policy applied

Asiana Airlines OZ

Confidence

Airline official

Asiana is tracked from its official April 17, 2026 notice: power banks are prohibited in checked baggage, limited to two units, 100-160 Wh units require airline approval, over-160 Wh units are prohibited, and onboard use/charging plus overhead-bin storage are prohibited.

checked: 2026-06-10effective: 2026-04-20

Key constraints

Quantity: Up to two power banks.
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: Carry-on only and must remain accessible; do not store in overhead bins.
Checked baggage: Prohibited in checked baggage.

Source: flyasiana.com Policy hub

Conditions

Conditions that apply to this verdict.

Carry-on only — never in checked baggage.
Do not charge using the seat USB port.
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.

Issued2026-06-13 · ruleset 2026-05-15

Sources · 5

RegulatorAirports of Thailand / CAAT cited guidance
“Power banks are screened by watt-hour band; 20,000 mAh is used as an approximate expression of the 100 Wh passenger threshold.”
suvarnabhumi.airportthai.co.th2026-05-03
RegulatorMOLIT / Korea Policy BriefingKR
“South Korean carriers shall ban overhead-bin storage of portable battery banks effective 1 March 2025.”
m.korea.kr2026-05-15
AirlineAsiana Airlines
“Power banks may not be used or charged onboard and must not be stored in overhead bins.”
flyasiana.com2026-05-15
AirlineAsiana Airlines
“Power banks are limited to 2 units per passenger.”
flyasiana.com2026-05-15
RegulatorIATA passenger guidance
“Power bank: ≤100 Wh carry-on permitted; >100 Wh but ≤160 Wh may be allowed with airline approval; >160 Wh must be carried as cargo.”
iata.org2026-05-15

Provenance audit trail

The rule path, citation freshness, and source-integrity checks behind this exact verdict.

release gate: passed

Verdict ID: vdt_MBAJB45WVNQBC4STRFRZ7VDW0K
Ruleset: 2026-05-15
Last ingested: 2026-06-07 16:05:24Z
Expires: 2026-06-27 05:43:38Z

Applied rules

th.caat.wh-threshold-passenger-guidance
THcapacity_thresholdprecedence 75active
kr.molit.2025-03.no-overhead-bin
KRstorage_restrictionprecedence 65active
oz.policy.2025.no-overhead-bin
OZstorage_restrictionprecedence 65active
oz.policy.2026.max-2-banks
OZquantity_limitprecedence 65active
iata.passenger-guidance.power-bank-threshold.2026
internationalcapacity_thresholdprecedence 30active

Citation audit

Airports of Thailand / CAAT cited guidancegreen
regulatorpulled 2026-05-03 02:14:00ZHTTP 200verified
MOLIT / Korea Policy Briefinggreen
regulatorKRpulled 2026-05-15 00:00:00ZHTTP 200verified
Asiana Airlinesgreen
airlinepulled 2026-05-15 00:00:00ZHTTP 200verified
Asiana Airlinesgreen
airlinepulled 2026-05-15 00:00:00ZHTTP 200verified
IATA passenger guidancegreen
regulatorinternationalpulled 2026-05-15 00:00:00ZHTTP 200verified

Source integrity

green 26amber 0red 0total 26

Why this verdict

CertiWatt evaluates the product capacity, departure jurisdiction, operating carrier, published dangerous-goods policy, and active recall evidence before returning a verdict.

Decision inputs checked

Capacity evidence: 74.0 Wh · 20000 mAh · 3.7 V; derived from nominal voltage
Route jurisdiction: Thailand → South Korea; TH departure overlay checked
Airline policy: Asiana Airlines (OZ); flyasiana.com/C/US/EN/customer/notice/detail?id=CM202604100002528761
Recall intelligence: No active model-specific recall matched this verdict.; status: not_affected
Citation freshness: 5 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.

INIU INIU B42 18W 20000mAh Power Bank - ProgressBar2 is recorded at 74.0 Wh and 20000 mAh, so the capacity check is tied to this exact catalog model.
Thailand departures use Wh-based passenger battery bands; mAh labels are treated as supporting capacity evidence.
Asiana Airlines (OZ) is evaluated as the operating carrier, with its published dangerous-goods policy included in the citation set.
INIU INIU B42 18W 20000mAh Power Bank - ProgressBar2 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

th.caat.wh-threshold-passenger-guidance
kr.molit.2025-03.no-overhead-bin
oz.policy.2025.no-overhead-bin
oz.policy.2026.max-2-banks
iata.passenger-guidance.power-bank-threshold.2026

About the INIU INIU B42 18W 20000mAh Power Bank - ProgressBar2

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 Asiana Airlines

Asiana Airlines (OZ) is a South Korea-based carrier. Their dangerous-goods policy is published at flyasiana.com/C/US/EN/customer/notice/detail?id=CM… This carrier adopts the 2026 two-power-bank operating limit.

Verify your specific power bank

The verdict above is for the standard INIU INIU B42 18W 20000mAh Power Bank - ProgressBar2. 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.