Can You Take a Power Bank on a Plane? Quick 2026 Rules

The short answer

Yes, in your carry-on. Never in the hold.

You can take a power bank on a plane with every airline in our table, as long as it stays in the cabin and under 100Wh (roughly 27,000mAh). Checked luggage is the rule that catches people out: a power bank in a hold bag can get your luggage pulled at any airport in the world.

Up to 100Wh: allowed in the cabin on all 25 airlines below
How many: two on most airlines, but only one on Emirates, Wizz Air and Southwest
Using one in flight: banned on most carriers since the 2026 rule changes, though a few still allow it

Facts checked 15 Jul 2026, rechecked on 5 Oct 2026, against the CAA and each airline’s own policy page. How we test and score.

The short version

The 4 numbers that matter

Everything below unpacks these. If you only remember 4 things, make it these 4.

100Wh

The universal ceiling. Under this, every airline here says yes.

0

In the hold. No airline, anywhere, allows a power bank in checked luggage.

1

Banks allowed on the strictest carriers (Emirates, Wizz Air, Southwest). Most allow two.

160Wh

The absolute max until 31 Dec 2026. From 1 Jan 2027, IATA’s rules drop the 100 to 160Wh option.

The foundation

Can you take a power bank on a plane? The core rules

Three rules cover 90 percent of trips. The exceptions are where it gets interesting.

Short answer: keep every power bank in your carry-on, keep each one under 100Wh, and assume you cannot use it during the flight unless your airline says otherwise. Those three rules clear you on every airline in this guide.

The hand-luggage rule is not airline fussiness. A lithium battery fault produces smoke and heat fast, and in the cabin the crew can reach it in seconds. In the hold, nobody can. That is why the CAA and IATA put spare batteries in the cabin, and every airline follows.

The 100Wh figure is printed on most power banks, and where it is not, you can work it out: multiply the mAh by 3.7 and divide by 1,000. A 20,000mAh bank is 74Wh, comfortably inside the limit.

What changed in 2026 is everything else. After a run of in-flight incidents, regulators tightened the framework in March, and each airline has interpreted it its own way.

Fifteen airlines now refuse any power bank over 100Wh outright. At least six of those go further and treat power banks as their own category, stricter than their rule for spare batteries: British Airways, American, Southwest, Thai, Wizz Air and Emirates.

Three of them allow only one per passenger. That divergence is why the table below exists.

Warning: Hong Kong

Hong Kong security confiscates and does not return. Cathay Pacific’s restriction is Hong Kong law, not airline preference: a non-compliant power bank taken at HKG security is gone for good, not held for collection.

Good news: if your power bank is under 100Wh and stays in your carry-on, you will clear every airline in this guide without a second look.

Darleene asks

“Mine doesn’t say watt-hours anywhere. It only says 20,000mAh. How am I supposed to know if it’s allowed?”

Alisdair: multiply the mAh by 3.7 and divide by 1,000. So 20,000mAh is 74Wh, comfortably under the limit.

If math on the way to the airport is not your thing, the rule of thumb is that anything sold as 27,000mAh or less is fine.

One catch since 2026: a few airlines refuse banks with no rating printed on the casing at all, so if yours has worn blank, replace it before you fly.

Rule of thumb

Plan for the strictest airline on your ticket, not the one you check in with.

What the airlines disagree on

What does every airline allow?

Power bank airline rules for 25 carriers. Every airline name links to that carrier’s own policy page, so you can check any row for yourself.

Short answer: under 100Wh in the cabin is universal: you can take a power bank on a plane with every carrier below. The differences are in how many banks you can bring, whether you can use one in flight, and what happens above 100Wh, and the airlines now openly disagree on all three.

We checked all 25 against their own published policies in July 2026 and rechecked every one again in October 2026. There is no single rule.

15 of 25

Refuse any power bank over 100Wh, with no approval route at all. Aer Lingus, British Airways, Cathay Pacific, Delta, Ryanair, TUI Airways, Wizz Air, Iberia, American, Southwest, United, JetBlue, Emirates, Qatar and Thai. The other 10 allow up to 160Wh with prior approval.

18 of 25

Ban using a power bank at any point during the flight. Only seven permit it with conditions. Qatar is the only long-haul carrier here that still allows in-flight use.

5 of 25

Will refuse a power bank with no capacity printed on it: British Airways, Jet2, KLM, Wizz Air and Emirates. If the figure has rubbed off, those five can refuse it at the gate whatever its real size.

3 of 25

Allow only one power bank per passenger: Emirates, Wizz Air and Southwest. The other 22 allow two.

Figures as at July 2026, rechecked in October 2026, from each airline’s own published policy. Every source is linked in the table below.

Where your power bank sits

Airlines measure watt-hours, not milliamp-hours. The number on the box is almost never the number they check.

Under 100Wh

Allowed on all 25

No approval needed anywhere. Quantity limits still apply.

100 to 160Wh

10 allow it, 15 refuse it

Where it is allowed you need approval before you travel, usually a form or a phone call. Turning up with one is not enough. This option ends on 1 January 2027, when IATA’s rules drop it.

Over 160Wh

Refused everywhere

No airline in this table permits a power bank above 160Wh in the cabin, and none may go in the hold.

What that means in mAh

10,000mAh37Wh, fine everywhere

20,000mAh74Wh, fine everywhere

25,000mAh92.5Wh, fine everywhere

27,000mAh100Wh, the cliff edge

30,000mAh111Wh, approval or refused

40,000mAh148Wh, approval or refused

A pocket 10,000mAh bank such as the Anker Nano 10K sits far below every limit here. Our Anker Nano 10K review compares its two models.

Why some rows below say more than two

Those figures are what each airline publishes, and we have left them as published. The regulation sets a lower floor.

The UK CAA lists power banks as their own category, capped at no more than two per person whatever their size. Spare batteries under 100Wh carry no equivalent quantity cap, and several carriers still describe power banks under that older spare-battery wording.

So a carrier page offering five, twenty, or no figure at all is describing an allowance the regulation no longer supports for power banks. Carry two and you are inside both.

The sourced reference table

Every airline, row by row

Every airline name links to the exact policy page we read. Each row carries the month we last checked it.

Show All airlines UK and Ireland Europe North America Middle East and Asia Australia

Airline	Alliance	Max size	How many	Use in flight	Overhead bin	Worth knowing
UK and Ireland
British AirwaysChecked Oct 2026	oneworld	100Wh hard cap	2 (of max 4 spares)	Yes, but not recharging it from seat power	No. Seat pocket or under the seat	The 100 to 160Wh approval form explicitly excludes power banks. Unrated banks refused
easyJetChecked Oct 2026	None	160Wh, automatic approval over 100	2	No	Keep it visible	Each bank individually protected (case or bag)
RyanairChecked Oct 2026	None	100Wh, no exceptions	2 (within 20 spares)	Yes, except taxi, take-off, landing	No	The strictest cap and the loosest use rule on one airline. No recharging the bank itself
Jet2Checked Oct 2026	None	160Wh, automatic approval over 100	2	No	Under your seat	Banks with no printed rating are forbidden
Virgin AtlanticChecked Oct 2026	SkyTeam	160Wh (100 to 160: max 2)	2 (within 5 spares)	No. No seat power either	No. Somewhere accessible	Helpfully publishes mAh equivalents: 100Wh = 27,000mAh
TUI AirwaysChecked Oct 2026	None	100Wh for power banks	2	No. Not to charge devices, no charging the bank	No. Under seat or seat pocket	From TUI’s Items Allowed On Board guide, V3 August 2026. Their website pages stay silent on power banks, so the guide is the source
Aer LingusChecked Oct 2026	None	100Wh for power banks	2	No use or charging	No. Keep it observable	Power banks must not exceed 100Wh on their restricted items page
Europe
Lufthansa GroupChecked Oct 2026	Star Alliance	160Wh (100 to 160: approval form)	2	No (medical exception)	No. Under seat, pocket or on you	Group standard for Lufthansa, SWISS, Austrian and Eurowings; verified on Austrian’s page
Air FranceChecked Oct 2026	SkyTeam	160Wh (100 to 160: approval before the trip)	2	No use or recharging	No. Supervised and accessible	Up to 15 devices and 20 spares under 100Wh per person
KLMChecked Oct 2026	SkyTeam	160Wh (100 to 160: permission first)	2 (within 20 spares)	No use or charging	No. Keep it with you	Unmarked capacity may be refused
Wizz AirChecked Oct 2026	None	100Wh for power banks	1	No during any phase	No. Under seat or pocket	One bank only, and unmarked banks are forbidden. The 100 to 160Wh band covers other spare batteries, not power banks
IberiaChecked Oct 2026	oneworld	100Wh for power banks	2	No at any time	No. Strictly prohibited	Separate allowance for spare batteries: 4 under 100Wh plus 2 at 100 to 160Wh
FinnairChecked Oct 2026	oneworld	100Wh (100 to 160: prior approval)	2	No and no charging from the outlet	No. Seat pocket or under seat	New limits in force since 24 Jun 2026
North America
American AirlinesChecked Oct 2026	oneworld	100Wh for power banks	2	Allowed, keep it visible. No seat-power recharging	No	Power banks now have their own stricter rule than spares. Large power stations banned entirely
DeltaChecked Oct 2026	SkyTeam	100Wh, no exceptions	2	Cruise only, no charging the bank	No. Under seat or pocket	One of the few still permitting use at all
UnitedChecked Oct 2026	Star Alliance	100Wh	2	Yes, keep it within reach. No aircraft-power recharging	No	The most permissive use rule in this table
SouthwestChecked Oct 2026	None	100Wh	1, effective 20 Apr 2026	Keep it visible, no in-seat charging	No. Personal item under seat	The strictest count anywhere in this table
JetBlueChecked Oct 2026	None	100Wh	2	No. Not to charge devices, no seat-power charging	No	No 100 to 160Wh band for consumer batteries at all
Middle East and Asia
EmiratesChecked Oct 2026	None	100Wh	1, effective 1 Oct 2025	No in either direction	No. Seat pocket or under seat	Capacity rating must be clearly visible on the bank
Qatar AirwaysChecked Oct 2026	oneworld	100Wh (over 100: not allowed at all)	2 (within 20 spares)	Yes, supervised, no recharging the bank	Not while charging	The only long-haul carrier here still permitting in-flight use
Singapore AirlinesChecked Oct 2026	Star Alliance	160Wh (100 to 160: prior approval)	2, effective 15 Apr 2026	No and no in-seat charging	No. Pocket or under seat	New advisory in force since 15 Apr 2026
Cathay PacificChecked Oct 2026	oneworld	100Wh for power banks	2	No. It is Hong Kong law	No. Under any circumstances	Banks confiscated at HKG security are not returned or stored
Japan AirlinesChecked Oct 2026	oneworld	160Wh, the most generous here	2	No	Discouraged, not banned	JAL flags a cut to 100Wh from Jan 2027, in line with IATA’s 2027 rules
Thai AirwaysChecked Oct 2026	Star Alliance	100Wh (over 100: forbidden)	2	No since 15 Mar 2025	Not stated	Power banks no longer count as spare batteries, so the bigger spare allowance does not apply
Australia
QantasChecked Oct 2026	oneworld	160Wh (100 to 160: approval via their DG team)	2 (within 20 spares)	No use or charging	Fallback only, within reach preferred	The only carrier here that permits the locker at all

Every airline stays on this page whichever region you pick; the filter only narrows the view. We recheck every row quarterly, and airlines can change rules without notice, which is why every airline name links to the carrier’s own page.

How we checked this

Every row in the table above was read on the airline’s own website, not taken from another guide or a news report. The airline name in each row links to the exact page we read.

What counts as a source. Only the carrier’s own published policy. Where an airline publishes nothing, we say so rather than applying a guess.
Ambiguous wording. Where a policy bans recharging the bank but is silent on using it, we record that as use permitted and recharging banned, because that is what the airline has written. British Airways is the clearest example.
Group carriers. Where a group publishes one standard, we cite the member airline whose page states it. The Lufthansa Group row is verified on the SWISS page.
Dates. Every row carries the month we last read it. Where an airline has dated its own change, we record that date too.
Corrections. If we have a row wrong, tell us and we will fix it and note the change in the log below.

Update log

5 Oct 2026

All 25 rows rechecked against each airline’s own page. Seven changed.

Virgin Atlantic allows two power banks, not five. Aer Lingus, Delta, United and Cathay Pacific now cap power banks at 100Wh. JetBlue now publishes a two-bank limit and bans using one to charge devices.

TUI Airways has a published policy after all, in its Items Allowed On Board guide: 100Wh, two banks, no charging devices from one.

July 2026

All 25 rows rechecked against each airline’s own page. British Airways clarified: recharging the bank from seat power is banned, using it is not.

24 Jun 2026

Finnair brought in new limits.

20 Apr 2026

Southwest cut to one power bank per passenger, the strictest count in the table.

15 Apr 2026

Singapore Airlines advisory took effect.

Mar 2026

ICAO tightened its lithium battery instructions and the UK CAA followed, which is what set off most of the airline changes on this page.

1 Oct 2025

Emirates cut to one power bank per passenger.

Coming

From 1 January 2027, the 68th edition of IATA’s Dangerous Goods Regulations, the rulebook most airlines follow, no longer lets passengers carry a 100 to 160Wh power bank with airline approval (IATA’s own guidance). Japan Airlines has already flagged its cut to 100Wh. Expect the other airlines in the table that allow 100 to 160Wh today to follow; we will update each row as they publish their new rules.

Using this data

The airline comparison on this page is free to reuse, in whole or in part, with attribution to SmartGadgetKit and a link to this page. The full dataset is available as a CSV on request, along with the methodology above. Journalists wanting the file, a comment, or clarification on any row can reach Alisdair through our contact page.

Darleene’s version Under 100Wh in your carry-on works on every airline here. The rest is the airlines arguing among themselves, so find your row before you fly.

Flying next week and still need a power bank? Every pick in our roundup is under the 100Wh cabin limit.

See our flight-safe travel picks

At the airport

What do I do if security questions my power bank?

Work through these in order. Most cases end at step 1.

1

Show the Wh marking

Point to the watt-hour figure printed on the casing. If it reads 100Wh or less, that usually ends the conversation.

2

Do the mAh conversion for them

If only mAh is printed: mAh times 3.7, divided by 1,000. Say the result out loud; officers hear it daily.

3

Ask for a supervisor before surrendering it

If the marking is worn or missing, a supervisor can accept the manufacturer’s spec page on your phone. A surrendered bank at some airports is not coming back.

Darleene’s take I keep my big power bank in the same pocket of my carry-on every trip, so I am never digging for it at the security tray.

The marketing myth

Is there such a thing as a TSA-approved power bank?

Search the phrase and you will find it on hundreds of product listings. No such certification exists.

Short answer: no. The TSA does not approve, certify or test individual power banks, and it publishes no list of approved models. A power bank sold as TSA approved is carrying a marketing phrase, not a certification.

The TSA screens bags at US airport checkpoints. Its own guidance on power banks runs to two lines, carry-on yes and checked bags no, and it sets out no certification a power bank could hold.

The rules themselves come from elsewhere. In the US it is the FAA, internationally it is ICAO, and the UK CAA follows the ICAO framework. Your airline then layers its own policy on top, and that layer is usually the strictest one on your ticket.

So there is no label to shop for. Four things decide whether your bank flies:

Watt-hours. Under 100Wh clears every airline in the table above, no approval needed. Convert your bank’s mAh to watt-hours if the rating is not printed.
Carry-on. Never the hold, on any airline, at any capacity.
How many. Two per person is the current international ceiling, and several airlines allow only one.
A legible printed rating. Security staff can refuse an unmarked bank even when it is well under the limit.

Worth knowing

One more reason no badge can promise you anything: the TSA states that the final decision rests with the officer at the checkpoint. A compliant bank is still a judgement call on the day.

A TSA approved badge buys you nothing at the gate. It normally means the bank is under 100Wh, and that is the number that matters most. It tells you nothing about your airline’s quantity limit or whether you can use the bank in flight, which are the rules that catch people out.

Habits

Pack it right, first time

The carry-on habits that keep you out of the secondary-search queue.

Do

Keep every power bank in your carry-on, under the seat where the airline asks for it
Check the strictest airline on your whole itinerary, not only the first leg
Keep the printed rating legible, and tape over the terminals of loose spare batteries

Don’t

Put a power bank in a checked bag, ever
Charge your phone from it mid-flight unless your airline’s row says you can
Fly with a swollen, dented or unmarked bank; replace it before the trip

The moving target

What changed, and when

The rules have moved five times in eighteen months. The dates matter if your last flight was a while ago.

Mar 2025

Thai Airways bans in-flight use (from 15 Mar 2025), one of the first carriers to split power banks out from ordinary batteries.

Oct 2025

Emirates cuts the allowance to one bank per passenger, 100Wh, seat pocket or under the seat only (announced Aug 2025, in force 1 Oct).

Mar 2026

ICAO and the CAA tighten the framework (27 Mar). Airlines start rewriting their own policies, each in its own way.

Apr 2026

The divergence wave. Singapore Airlines (15 Apr), Southwest (20 Apr) and Japan Airlines (24 Apr) all publish new rules within ten days of each other, and they do not match.

Jun 2026

Finnair’s new limits take effect (24 Jun).

Jan 2027

IATA’s rules drop the 100 to 160Wh power bank option. The 68th edition of its Dangerous Goods Regulations takes effect on 1 January; Japan Airlines has already flagged its cut to 100Wh.

Ten seconds of math

Is your power bank under the limit?

Check the math in ten seconds, or use the full calculator.

The formula: Wh = (mAh ÷ 1,000) × 3.7. Nearly all power banks use lithium-ion cells at a nominal 3.7V, the figure airlines themselves use.

Printed capacityWh at 3.7VStatus

5,000mAh18.5WhAllowed, no approval

10,000mAh37WhAllowed, no approval

20,000mAh74WhAllowed, no approval

26,800mAh99.2WhAllowed, under the line

30,000mAh111WhAirline approval needed

40,000mAh148WhAirline approval needed

50,000mAh185WhBanned from passenger flights

Not on the list? The full calculator converts any capacity and checks it against the airline bands.

Open the flight calculator

If you still need one

Three flight-safe picks

All three clear every airline in the table above, with the watt-hour rating printed on the casing. Want the full shortlist? See our flight-safe travel roundup.

Best overall

Anker 737 (89Wh)

The biggest bank that still flies everywhere: 24,000mAh, laptop-capable output, and the 89Wh rating printed right on the casing.

Read our review ›

Best value

Anker 87W A1383 (74Wh)

20,000mAh with fast charging for a phone and laptop both, and enough headroom under the limit that no security officer looks twice.

Read our review ›

Travel pick

Anker A1695 (90Wh)

Built-in cables mean two fewer things to dig out of your bag at the tray, and 90Wh still clears the universal ceiling.

Read our review ›

Quick answers

Power banks on planes: your questions, answered

The questions readers ask most, with the direct answer first.

What does TSA approved mean on a power bank listing?

Nothing official. The TSA does not certify power banks, so the phrase is seller marketing. It normally signals the bank is under 100Wh, which is the capacity every airline accepts in a carry-on.

Can I take a 20,000mAh power bank on a plane?

Yes. 20,000mAh is 74Wh, well under the 100Wh limit every airline applies. Keep it in your carry-on.

What happens if I leave a power bank in my checked bag?

Your bag is likely to be pulled and searched, and the power bank removed. On some routes the bag misses the flight while that happens.

Can I use a power bank during the flight?

On most airlines, no longer. Since the 2026 rule changes most ban it outright. The exceptions in our table: Ryanair and United allow it with conditions, Delta allows it at cruise, American asks you to keep it visible, and Qatar permits supervised use. Check your airline’s row.

How many power banks can I take on a plane?

Two on most airlines. Emirates, Wizz Air and Southwest now allow only one. Ryanair counts them inside its overall 20-spare-battery allowance.

My power bank has no Wh rating printed on it. Will it fly?

Maybe not. British Airways, KLM, Wizz Air, Jet2 and Emirates all say unmarked banks can be refused. You can work out the Wh from the mAh, but the printed rating is what the officer goes by, so replace a worn-blank bank before you travel.

What about connecting flights on different airlines?

The strictest airline on your ticket sets your rule, because your bank has to clear every leg. Fly British Airways into Hong Kong and connect onto Cathay Pacific, and Hong Kong law applies at the transfer even though BA carried it happily on leg one.

Is a 30,000mAh power bank allowed on a plane?

That is about 111Wh, so it is in approval territory at best. easyJet and Jet2 approve up to 160Wh automatically for now; BA, Ryanair, Wizz Air, Emirates and others refuse anything over 100Wh outright. From 1 January 2027, IATA’s rules drop the 100 to 160Wh option, so expect a bank this size to be refused on most airlines. Check your row before you buy the ticket, not after.

Can I put my power bank in the overhead locker?

Increasingly no. Most carriers in our table now require the seat pocket, under the seat in front, or on your person. Qantas is the only airline here that permits the locker at all, and only as a fallback.

Why did the rules change in 2026?

A run of in-flight battery incidents pushed ICAO and national regulators, including the CAA, to tighten the framework on 27 March 2026. Airlines then rewrote their own policies individually, which is why they now disagree with each other.

Are the UK and US rules different?

The CAA and FAA baselines match: 100Wh in the cabin without approval, up to 160Wh with, nothing in the hold. From 1 January 2027, IATA’s rules for airlines drop that 100 to 160Wh option for power banks. What bites is the airline layer on top, which is where the one-bank limits and usage bans live.

If security takes my power bank, do I get it back?

Usually not. Surrendered items at UK airports are rarely retrievable, and at Hong Kong security confiscated banks are not returned or stored at all.

What size power bank is best for flying?

The sweet spot is 20,000 to 27,000mAh: big enough for a long-haul trip, still under the 100Wh ceiling every airline accepts. Our best power banks roundup only includes flight-safe picks.

Keep reading

Where this page’s readers usually go next

Browse all our travel tech guides and reviews. For the flight itself, our long-term Sony WH-1000XM5 review covers noise cancelling headphones on a long-haul, and our best travel headphones roundup ranks eight sets, over-ear and in-ear, for the flight.