Can You Bring a Portable Charger on a Plane? Know the Rules in 2026

Can you bring a portable charger on a plane? It’s a common question for travellers who rely on their phones, tablets, and laptops while flying. Portable chargers, also known as power banks, contain lithium-ion batteries, which means they’re subject to specific airline and airport security rules.

In this guide, we explain exactly when you can bring a portable charger on a plane, the key power bank rules to follow before flying, and how to pack and choose a charger that’s safe for air travel.

Can You Bring a Portable Charger on a Plane?

Yes, you can usually bring a portable charger on a plane, but it must be carried in your hand luggage, not checked baggage.

ICAO’s updated international specifications, effective 27 March 2026, introduced stricter passenger rules for power banks. IATA’s 2026 passenger guidance says travellers should carry no more than two power banks, each 100 Wh or less, must not recharge them during the flight, and should avoid storing them in overhead lockers.

Power Bank Rules You Must Follow Before Flying

When flying with a portable charger, following airline rules is essential for safety and to avoid delays at security. Here are the key power bank rules you must follow before flying:

• Carry in hand luggage only

Power banks must never go in checked baggage. Lithium-ion batteries can overheat or catch fire, and keeping them in the cabin ensures any issues can be handled immediately.

• Check the capacity (Wh) of your power bank

Under the updated 2026 passenger guidance, power banks should be 100 Wh or less. If only mAh is shown, calculate watt-hours using:

Wh = mAh ÷ 1000 × Voltage (V).

For many lithium-ion power banks rated at 3.7 V, 27,000 mAh is about 100 Wh.

• Protect the terminals

Cover exposed battery contacts with tape, place the power bank in a protective pouch, or keep it in its original packaging to prevent short circuits.

• Avoid damaged or swollen batteries

Never bring a power bank that shows signs of swelling, cracking, or leakage. These can pose serious safety risks.

• Limit the number of power banks

As updated in 2026 in IATA guidance, only two power banks of 100 Wh or less are allowed.

• Do not recharge power banks during the flight

ICAO’s 2026 change and IATA’s updated passenger guidance say power banks should not be recharged onboard, including from seat power or onboard USB ports.

Airline-Specific Rules in the UK & Europe

Airlines may apply stricter rules than the general passenger guidance, and not all carrier pages may present the 2026 power-bank wording in the same way yet. For UK travellers, the safest approach is to follow three rules first:

• Keep power banks in hand luggage only.
• Travel with no more than two.
• Make sure each is 100 Wh or less.

UK government guidance also makes clear that airlines and airports may apply their own restrictions, so always check the operating carrier’s latest dangerous-goods or restricted-items page before departure.

UK airline example: British Airways says spare batteries and power packs are not permitted in checked baggage, and that batteries or power banks with an undeterminable watt-hour rating will not be accepted.

How to Choose a Plane-Safe Portable Charger

When choosing a plane-safe portable charger, first make sure its capacity complies with airline regulations. Beyond that, several other factors determine how well it fits your devices and lifestyle.

Choose the right capacity (under 100Wh)

For 2026, the safest choice is a power bank that is clearly labelled at 100 Wh or less. This keeps you within the updated passenger guidance and avoids confusion at the airport.

Power Bank Capacity	Voltage (V)	Estimated Wh
5,000 mAh	3.7 V	18.5 Wh
10,000 mAh	3.7 V	37 Wh
20,000 mAh	3.7 V	74 Wh
26,800 mAh	3.7 V	99 Wh

26,800 mAh is often the maximum capacity that typically stays under the 100Wh airline limit, ideal if you want the most power without extra approvals.

Make sure the rating is visible

If the product only shows mAh, convert it to Wh. Some airlines may refuse carriage if the watt-hour rating cannot be determined. British Airways says that batteries or power packs with an undeterminable watt-hour rating will not be accepted.

Keep the quantity reasonable

Under the 2026 guidance, passengers should travel with no more than two power banks.

Prefer reputable products with safety protections

Choose models with clear labelling, proper certifications, and built-in safety protections. Damaged or poorly labelled batteries are more likely to cause problems at security or during travel.

The Best Power Banks for Travel in 2026

When travelling in 2026, a reliable, airline‑friendly power bank can keep your devices charged from take-off to touchdown. Below are three great options that balance capacity, output, portability, and aviation compliance, whether you’re on a long flight, a business trip, or a short getaway.

Anker Laptop Power Bank (25K, 165W)

Perfect for frequent flyers and multitaskers, the Anker Laptop Power Bank (25K, 165W) supports multiple devices with three USB‑C ports (100W max) and a USB‑A port.

Its generous capacity and built‑in retractable cables eliminate the need to carry extras, while fast recharging gets you back to full power quickly. Designed for carry‑on use and travel‑ready, it’s ideal for charging laptops, tablets, phones, and more on extended trips.

Anker Prime Power Bank (20K, 220W)

For travellers who need fast, high‑power delivery in a compact form, the Anker Prime Power Bank (20K, 220W) delivers. With two USB‑C ports and one USB‑A port, it offers up to 140W fast laptop charging and high‑speed output for phones and tablets.

Its capacity (~72 Wh) means it’s easy to carry in your hand luggage, and rapid 100W recharging helps you stay powered through long travel days.

Anker 622 Magnetic Battery (MagGo)

If you want lightweight, everyday charging on the go, the Anker 622 Magnetic Battery (MagGo) is a superb travel companion. This 5,000 mAh battery snaps magnetically to MagSafe‑compatible iPhones and includes a foldable kickstand for hands‑free viewing. Slim and pocket‑ready, it’s perfect for short trips, quick top‑ups, or as a backup to your main power bank.

How to Pack Portable Chargers for Airport Security

Packing your portable battery chargers for airplane correctly is essential to avoid delays or confiscation at airport security. Follow these tips to make your travel smooth and stress-free:

• Keep them in your carry-on

All power banks must go in hand luggage, never in checked baggage, due to fire risks with lithium-ion batteries. Place them in an easily accessible pocket or compartment for quick removal during security screening.

• Protect the terminals

Cover exposed metal contacts with tape or store chargers in a pouch or case. This prevents short circuits and meets airline safety requirements.

• Separate multiple chargers

Avoid stacking chargers together; leave a small space or use pouches to prevent heat buildup. If carrying more than one device, make sure each is individually protected.

• Label your charger

Clearly display the capacity (Wh or mAh) and voltage if it’s not printed. This helps security officers verify that your power bank complies with regulations.

Conclusion

So, the answer to “Can you bring a portable charger on a plane?” is yes. However, for 2026, the rule is clear: keep it in carry-on only, travel with no more than two, make sure each is 100 Wh or less, do not recharge it during the flight, and keep it accessible rather than in the overhead locker. To be safe, always check your airline’s latest policy before departure.

FAQs

Can you bring a portable charger on carry-on?

Yes. Portable chargers are usually allowed in carry-on baggage only, not checked baggage. For 2026, the safest rule is to bring no more than two power banks, each 100 Wh or less, and to check your airline’s latest guidance before travel.

Can I bring a 20000mAh power bank on a plane?

Usually yes. A 20,000mAh power bank is typically about 74Wh, so it is generally allowed in carry-on only, not checked baggage.

Where do you put a portable charger when flying?

Put it in your carry-on, ideally your personal item or under-seat bag. Current 2026 passenger guidance also says power banks should not be stored in overhead lockers and should not be recharged during the flight. Always check your airline too, since some are stricter.

Can I take more than one portable charger onboard?

Usually yes, but the updated 2026 passenger guidance limits travellers to two power banks each. Both should be carried in hand luggage and stay within the applicable capacity limit. Always check your airline’s rules, as policies may vary.