Can I bring a power bank on a plane?
- Last reviewed
- 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 no more than two lithium-ion power banks, each not exceeding 100 Wh, and do not recharge a power bank from aircraft power during flight.
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 can require a 3C mark, Thailand applies a mAh cap, 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
- IATA passenger guidance limits travelers to a maximum of 2 power banks.
- > 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 flyingFAQ
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. Thailand is a notable exception because current guidance uses a 20,000 mAh cap.
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.
Informational only. Final decision rests with airline and security staff. Why we said this.