Power bank flight rules

Can I bring a power bank on a plane?

Last reviewed: May 15, 2026
Ruleset: 2026-05-15
Reviewed by: CertiWatt source integrity workflow

Short answer: Yes, most power banks can fly, but only in carry-on baggage. Under 2026 ICAO/IATA passenger guidance, plan for each power bank to stay at or below 100 Wh, do not recharge a power bank from aircraft power during flight, and verify airline quantity rules when carrying multiple units.

The core aviation rule is about lithium-ion battery risk. A power bank is a spare lithium battery, so it must stay in the cabin where crew can respond if it overheats.

Capacity matters. If the device label shows watt-hours, use that number. If it only shows mAh and voltage, convert to Wh before travel.

Country and airline overlays can be stricter than the global baseline. Mainland China domestic flights can require a 3C mark, Thailand may publish mAh approximations of Wh bands, Korean carriers can add storage and charging restrictions, and recalled models may be banned even if their capacity is low.

Rule summary

Carry-on: Required for lithium-ion power banks.
<= 100 Wh: Ordinary 2026 passenger band, still subject to quantity, route, and airline checks.
Quantity: Airline-specific; two units is a conservative planning assumption, not a universal ICAO/IATA cap.
> 160 Wh: Prohibited on passenger aircraft.

Check your device

The final answer can change by model, airline, country, certification mark, label evidence, and recall status.

Check your power bank before flying

FAQ

Can a power bank go in checked luggage?

No. Lithium-ion power banks are treated as spare batteries and must travel in cabin baggage, not checked baggage.

Is a 20,000 mAh power bank allowed on a plane?

Usually yes if it is around 3.7 V, because it is roughly 74 Wh. Use the printed Wh value when available and check airline quantity limits.

Do airline staff have the final say?

Yes. CertiWatt gives a cited informational verdict, but airline and security staff make the final operational decision.

Sources and evidence

This guide is reviewed against CertiWatt ruleset 2026-05-15. Active rule citations pass the source integrity release gate before deployment; trip-specific verdicts can still cite additional regulator, airline, manufacturer, or recall sources. Open the full source registry.

Informational only. Final decision rests with airline and security staff. Why we said this.