Summer flight check • reviewed 27 July 2026

Cabin, not hold.

Power banks belong in carry-on baggage, not checked luggage. The UK Civil Aviation Authority’s July warning gives holidaymakers a simple packing job before the airport.

This is a packing and buying checklist, not a guarantee of airline acceptance. Check the exact power bank, every airline and every flight leg before travel.

An open cabin backpack beside a checked suitcase, with a power bank placed next to the cabin bag.

Why this matters now

The CAA’s 22 July warning, in four numbers

These figures come from the CAA’s summer-flight warning. They describe the scale and awareness problem; they do not predict the risk on a particular flight or certify a particular product.

30m

passengers expected to leave the UK in July and August

49%

of travellers said they fly with a power bank

36%

were unaware of the danger of packing lithium batteries in checked baggage

Nearly 2×

the reported device incidents in 2025 versus 2024

Read the CAA warning

The 20-second check

Five checks before the bag leaves your hand

01

Cabin, not hold

Carry power banks in carry-on baggage. Never put one in checked baggage, including a cabin bag that is taken from you at the gate and placed in the hold.

02

Maximum two

Current CAA guidance says a passenger can carry no more than two power banks. Your airline may apply additional restrictions.

03

Protect each one

Keep power banks protected from damage and short circuits. Do not travel with one that is swollen, damaged, changing shape or overheating.

04

Do not recharge it on board

The CAA says power banks must not be recharged on the aircraft and should not be used to charge another device on board. Follow crew instructions and your airline’s current policy.

05

Check the Wh label

Up to 100Wh is normally allowed without airline approval; 100–160Wh requires operator approval; more than 160Wh is prohibited in passenger baggage. Confirm the exact rules before every trip.

If a cabin bag is gate-checked

Remove the power bank before the bag goes into the hold.

A bag that began as carry-on can still be moved to the hold at the gate. Keep the power bank accessible enough to remove it, and follow the airline or ground crew’s instructions.

Stop condition

Do not fly with a damaged or swollen battery.

If a battery is bulging, changing shape, overheating or otherwise damaged, do not pack it. Use an appropriate local battery or electronics recycling route; do not place it in general waste.

Choose the next useful step

Safety check first. Product comparison second.

Read the dated news explainer

See what changed in 2026, what the CAA reported in July and how to check a power bank before travel.

Read the explainer

Run the pre-flight checklist

Use a compact bag, battery and airline-rule check before comparing products.

Open checklist

Find the right power-bank guide

Use the fit checker for device power, carry size and travel caveats. It does not guarantee airline acceptance.

Open Fit Checker

Browse portable-power guidance

Start at the category page if you still need to compare travel, laptop, compact or everyday power banks.

Open category

Share the check

Save or share the flight check

Choose the format that works for you. Each image summarises the same check and links back to the full guidance and official sources.

Cabin, not hold card showing a cabin backpack, checked suitcase and the CAA passenger-awareness statistic.

Facebook / link preview

36% were unaware of the lithium-battery checked-baggage danger

Ad | Flying with a power bank? The UK CAA says cabin, not hold. Check the two-per-person limit, Wh label and your airline’s current rules before the airport.

Open full-size image
Saveable Cabin, not hold checklist for carry-on, quantity, onboard charging and Watt-hour checks.

Instagram / saveable checklist

The 20-second power-bank flight check

Ad | Save this before you fly: carry-on only, maximum two, protect each one, do not recharge it on board, and check the Wh label plus your airline’s current rules.

Open full-size image
Tall Cabin, not hold power-bank flight checklist with an airport packing image and four checks.

Pinterest / saveable travel check

Cabin, not hold

Ad | Power bank flight rules for UK travellers: cabin baggage, maximum two, protect from damage, do not recharge on board, and verify Wh plus airline rules.

Open full-size image

Primary sources

Check the source, then check your airline

UK Shortlists reviewed these official sources on 27 July 2026. Airline and airport rules can be stricter or change, so use this page as a prompt to recheck—not as permission to fly with a particular battery.

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