Can I Bring It?

Can I bring a power bank on a plane?

Usually, yes—in your carry-on. Power banks up to 100 Wh commonly qualify, but airline quantity, label and route restrictions still apply. Never pack one in checked baggage.

Enter the numbers on your label. We’ll do the maths, check the limits, and show you the source.

iPhone app coming soon. The web checker is free to use.

Find your airline

Power bank flight checker

Only if it matches your label.
Airline

Use the battery’s nominal voltage, not its USB output voltage. 3.7 V is an example; check your label.

— WhReady when you are

Enter the capacity and voltage from your label to see your result.

Official FAA rule Last checked 2026-11-04
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Up to 100 Wh

Generally carry-on only. Airline quantity and route rules still apply.

Over 100–160 Wh

Approval where permitted. Many airlines now cap power banks at 100 Wh.

Never in checked bags

Keep it in the cabin. Over 160 Wh is not allowed in passenger baggage.

Travelling in 2027? Read the forthcoming IATA change for power banks above 100 Wh.

Which airlines have stricter power bank rules?

Southwest and Emirates limit passengers to one power bank. Delta allows two, but requires accessible storage outside the overhead bin. Open the official policy before travel.

Southwest Airlines Special ruleOne power bank per personSee airline rule

Keep it visible while in use.

Last checked 2026-11-04. Confirm before travel.

Emirates Special ruleNo power-bank use on boardSee airline rule

Carry one, but don’t use or recharge it during the flight.

Last checked 2026-11-04. Confirm before travel.

Delta Air Lines Special ruleKeep it out of the overhead binSee airline rule

Store it within reach below the seat or in the seat pocket.

Last checked 2026-11-05. Confirm before travel.

Check every leg of your trip.

Label scanning and trip checks are coming to the app.

iPhone app coming soon. The web checker is free to use.

Do connecting flights and local rules matter?

Yes. Check every operating airline and each departure or transit location. A capacity calculation alone does not confirm certification, label requirements or permission to use the power bank on board.

Flying within China: the CCC mark One trip, different airlines Can’t read the label? Southwest’s one-power-bank rule What changed in 2026

Power bank questions, answered.

Portable charger, battery pack or power bank: start with its label, then check your route.

IATA Power Bank Rules 2027: the 100 Wh LimitIATA says the 100–160 Wh power-bank approval provision will not carry into its 2027 DGR edition. What to check before booking.China power bank rules: the CCC markWhat the CCC (3C) certification requirement means for power banks on domestic flights in mainland China.South Korea power bank rulesThe two-power-bank limit, cabin packing and onboard charging rules for flights from South Korea.Power bank: checked bag or carry-on?Where to pack a portable charger and what to do if your carry-on is checked at the gate.How many power banks can you bring on a plane?Why the number of portable chargers you can carry depends on the airline and route.Can you use or charge a power bank in flight?The difference between carrying a power bank, charging your phone with it and recharging the bank onboard.Power banks on connecting flightsHow to check power-bank requirements when a trip uses different airlines or transit airports.Can you fly with a power bank that has no label?Why an unreadable power-bank capacity label can cause problems at airport security.100 Wh to mAh: how big is a flight-friendly power bank?100 Wh equals about 27,027 mAh at 3.7 V, but 20,000 mAh at 5 V. See the formula, exact examples and why voltage matters.Power bank watts vs watt-hours: 100 W is not 100 WhA 100 W charger rating describes power output, not battery capacity. Learn which numbers to use when checking a power bank for a flight.Which power bank voltage should you use to calculate Wh?Use nominal battery voltage with its matching mAh rating, not USB output voltage. Compare 3.7 V and 3.85 V worked examples.Power bank flight packing checklistA practical checklist for the battery label, airline allowance, carry-on packing, gate checks and connecting flights.

Power bank flight FAQs

Quick answers before you pack.

Can I bring a power bank on a plane?

Generally, a power bank up to 100 Wh can travel in carry-on baggage, subject to the operating airline’s quantity, labelling and route requirements. It must not go in checked baggage. Above 100 Wh, check whether the airline accepts it with approval; above 160 Wh is not allowed in passenger baggage.

How do I convert mAh to watt-hours?

Multiply capacity in mAh by the battery’s nominal voltage, then divide by 1,000. At 3.7 V, a 20,000 mAh power bank is 74 Wh. Use the voltage on your battery label.

Can I put a power bank in my checked bag?

No. Power banks belong in the cabin. If your carry-on is checked at the gate, remove your power banks first.

Is a 100 Wh power bank always allowed?

No blanket guarantee applies. Many airlines allow up to 100 Wh, but quantity, labelling, recall status and local rules also matter. Check your operating airline.

Do the rules change when I connect?

Yes. Every operating airline and departure or transit airport can impose requirements. Check every leg and meet all applicable rules.

Independent guidance, not airline approval. Confirm with your operating airline before travel. Report a correction.