A power bank is today one of the most important gadgets in travel. A smartphone serves as a boarding pass, a map, navigation, a translator, a camera, a wallet and the main communication tool. When the battery drops to zero, we lose access to tickets, reservations, information about the gate or transport. That's why an additional source of energy has become an absolute standard in carry-on baggage.
Many people treat a power bank like ordinary electronics. In reality airlines approach it far more restrictively. The device contains a lithium-ion battery, which under certain conditions can overheat or catch fire, which is why its transport is subject to strict safety rules and specific capacity limits.
The most problems appear only during the security check. A power bank packed into a checked suitcase, a lack of marked parameters or too large a capacity can end in confiscation of the equipment. It's unnecessary stress and a loss of money, which is easy to avoid by knowing the basic regulations.
In this guide we discuss, in a simple, orderly way, the general rules applying in aviation, the Wh limits, practical packing tips and the regulations of the most popular airlines. Thanks to this you can safely pack your electronics and pass the check without surprises.
If we care about a calm journey and a working phone throughout the flight, a few simple rules and conscious preparation of the carry-on baggage are enough. The rest is already the pure convenience of travelling.
General rules for transporting power banks on a plane
The regulations on power banks aren't the invention of individual airlines. These are safety standards applied practically all over the world and based on the guidelines of civil aviation organisations. Airlines merely implement these rules into their own regulations, which is why in most countries very similar limits apply.
The reason is simple — a power bank is in practice a spare lithium-ion battery. In the event of damage, overheating or a short circuit, spontaneous combustion may occur. In the cabin the crew can react quickly, whereas in the baggage hold it would be much more difficult and more dangerous. For this reason the transport of such devices is strictly controlled.
Main rules
✔ Only in carry-on baggage
A power bank should always be with us — in a backpack, bag or small cabin suitcase. Thanks to this, in case of a problem the crew has immediate access to the device. It's the absolute, most important rule, from which there are practically no exceptions.
✔ Protected against short circuit
The contacts and USB ports shouldn't have contact with metal objects, such as keys, coins or cables. It's best to keep the power bank in a case, pouch or separate pocket. This reduces the risk of an accidental short circuit during transport.
✔ With a visible capacity marking
On the casing there must be information about the battery parameters (Wh or mAh and voltage). If airport staff can't read the data, they may consider the device not permitted. A lack of markings is one of the most common causes of confiscation of cheap models.
✔ Within specified Wh limits
As standard, batteries up to 100 Wh are permitted without additional formalities. Larger ones (100–160 Wh) usually require the airline's consent, and above 160 Wh they're forbidden on passenger flights. It's worth checking the capacity before the trip and converting it from mAh to Wh.
✔ For personal use
The number of power banks transported should be "reasonable." A few pieces don't raise doubts, but a larger quantity may be treated as commercial transport and require special procedures.
What isn't allowed
✘ In checked baggage
Placing a power bank in a suitcase checked into the baggage hold is forbidden. If it's detected during scanning, the baggage may be opened and the device removed. In some cases the suitcase may not fly on the same flight.
✘ Damaged or swollen batteries
Any signs of mechanical damage, cracks in the casing or bulges are a warning signal. Such devices pose a real fire hazard and shouldn't be brought on board the plane.
✘ Power banks without parameter markings
Models without labels, certificates or with an illegible specification may be stopped during the check. The staff has to be able to quickly check the capacity — without this the device tends to be treated as non-compliant with the regulations.
✘ Very large power stations without the airline's consent
Large "travel power banks" or energy stations with a capacity of several hundred Wh most often aren't permitted for transport on passenger flights. Such equipment requires special cargo procedures or prior, written acceptance from the carrier.
Applying these rules in practice is simple: keep the power bank in your carry-on baggage, choose models below 100 Wh and take care of their good technical condition. That's enough to pass the security check quickly and without any surprises.
Capacity limits — the most important numbers
When transporting power banks, what's crucial isn't their size or the number of USB ports, but the battery capacity expressed in watt-hours (Wh). It's precisely this unit that decides whether the device can be brought on board the plane without formalities, whether the airline's consent will be needed, and in some cases — whether the transport will be completely forbidden.
In shops, however, we most often see markings in mAh (milliamp-hours). For aviation this value is insufficient, which is why airport staff convert it into Wh. It's worth doing this yourself in advance, to avoid misunderstandings at the security check.
How to convert mAh into Wh?
If on the casing you have only mAh, use a simple formula:
Wh = (mAh × V) / 1000
Most classic lithium-ion power banks work at a voltage of 3.7 V, which is why the calculations are quick and easy. A calculator on your phone and a few seconds are enough to check whether you're within the limit.
For convenience you can remember that:
- 10,000 mAh is about 37 Wh
- 20,000 mAh is about 74 Wh
- 26,800 mAh is about 99 Wh
You can already see that most popular travel models fit just below the 100 Wh boundary, that is in the safest category.
Standard limits applied in aviation
The regulations in most countries are very similar and are based on the same safety thresholds. In practice three main capacity ranges can be distinguished.
Up to 100 Wh – without formalities
This is the most "trouble-free" group. Power banks of such a capacity can be taken on board without the need to obtain additional consents. It's precisely for this reason that manufacturers often design models so that they fit just below this limit.
Usually a few pieces are allowed – most often from 2 to 5, depending on the airline's policy. For the average traveller that's entirely sufficient, even on long intercontinental flights.
Examples:
- 10,000 mAh ≈ 37 Wh
- 20,000 mAh ≈ 74 Wh
- 26,800 mAh ≈ 99 Wh
It's precisely these capacities that are the most universal and the safest during air travel.
100–160 Wh – only with the airline's consent
Larger power banks or professional batteries falling within this range are treated as higher-risk equipment. They can still be transported in the cabin, but prior acceptance from the carrier is necessary.
Most often additional restrictions apply:
- a maximum of 1–2 pieces
- notification before the flight (by email or phone)
- transport exclusively in carry-on baggage
This segment concerns mainly large power banks for laptops, drones or photographic equipment. For the ordinary smartphone user there's usually no need to choose such a large capacity.
Above 160 Wh – banned on passenger flights
Power banks and mobile power stations exceeding 160 Wh are considered too risky for transport in the cabin of a passenger plane. In practice this means a complete ban on transporting them in carry-on and checked baggage.
This type of equipment may be sent exclusively as cargo in accordance with special procedures for dangerous goods. If you're planning a trip with a large camping energy station or a professional accumulator, it's worth considering other logistical solutions.
Practical tip
The most universal choice for a plane is a power bank with a capacity of 10,000–20,000 mAh (that is clearly below 100 Wh). Such a model will pass the security check without a problem, and at the same time will allow you to charge your phone, headphones or tablet several times during the whole journey.
Peli Air 1535 cabin cases
How to safely transport a power bank?
Knowing the capacity limits is one thing, but equally important is the appropriate packing and use of the power bank during the journey. In practice it's precisely minor organisational mistakes that cause the most stress during the security check. A device thrown loose into a suitcase, a lack of markings or the need to frantically search for it in a backpack can unnecessarily lengthen the whole process.
The good news is that a few simple habits are enough to make transporting a power bank completely trouble-free. These rules work both on short European flights and during many-hour intercontinental journeys.
Tried-and-tested travellers' practices
Keep the power bank in a backpack or bag within reach
It's best to place it in an easily accessible pocket of the carry-on baggage. During the security check or already on board the plane you can quickly reach for it without digging through the whole bag. This saves time and reduces stress, especially when the queue behind us is growing.
Don't pack it into the checked suitcase "for a moment"
A common mistake is moving the power bank into a larger suitcase just for the journey to the airport. In a hurry it's easy to forget about it, and after checking the baggage there's no longer any possibility of removing it. As a result the device may be confiscated during the scanning of checked baggage. It's safest to keep it exclusively in the cabin from the start.
Protect the ports (case or pouch)
A power bank thrown loose among cables, keys or coins may short-circuit. A small case, fabric pouch or separate compartment is enough to shield the contacts. It's a trifle that really increases safety and protects the equipment against scratches.
Don't use damaged devices
A cracked casing, overheating, a swollen battery or a strange smell are warning signals. Such a power bank may not only be stopped during the check, but also poses a real threat during the flight. It's worth taking on a trip exclusively functional, certified equipment of good quality.
Have visible Wh or mAh markings
The technical parameters should be legible on the casing. If they're worn off or covered up, the staff may ask for additional explanations or not allow the device for transport. If necessary it's good to have the manufacturer's specification saved on your phone, but it's best when everything is visible right away.
Take it out during the check like a laptop
At many airports power banks are treated similarly to laptops or tablets. It's worth taking them out of the bag in advance and placing them separately in the tray for scanning. Thanks to this the check goes faster, and the staff doesn't have to manually search the baggage.
Don't charge devices at critical moments of the flight
During takeoff and landing some crews ask you to disconnect cables and put away electronics. It's worth following these recommendations and charging equipment only during the calm cruise phase of the flight.
Why is this so important?
At many airports the staff asks you to place power banks separately in the tray, and sometimes asks additional questions about the capacity. When the device is easily accessible and properly secured, the whole procedure takes a few seconds. Good preparation makes the security check a formality, and not a source of unnecessary nerves.
In short: order in the carry-on baggage and a functional power bank are the simplest way to a calm start to every air journey.
Peli ATX travel suitcases
Unusual and risky situations
Even if we know the basic limits and transport the power bank in carry-on baggage, there are still situations that may end in additional questions at the security check or – in the worst case – confiscation of the equipment. In practice it's precisely minor technical details or unusual models that raise the most doubts among airport staff.
It's worth knowing which cases are considered problematic, to avoid unnecessary nerves and not lose the device before even boarding.
Power bank without markings
A lack of information about the capacity is one of the most common causes of a device being stopped during the check. If on the casing there's no data such as Wh, mAh or voltage, the staff isn't able to check whether the equipment fits within the permitted limits.
In such a situation the staff usually adopts the safest scenario, that is treats the power bank as not permitted. Even if in reality it has a small capacity, it may be taken away.
That's why it's best to choose models with a legible label and avoid devices in which the writing has worn off or been covered up. The parameters should be visible at first glance, without explanations and additional clarifications.
Cheap no-name or DIY
Power banks of unknown origin, very cheap models without certificates or self-assembled constructions (DIY) arouse particular caution. From the point of view of aviation safety it's hard to assess their quality, the cells used and the short-circuit protections.
A lack of CE markings, serial numbers or information about the manufacturer may cause the device to be considered potentially dangerous. This also concerns self-assembled sets with replaceable accumulators or "power banks" in 3D-printed casings.
On an air journey it's best to opt for proven, branded equipment with a full technical specification. This significantly reduces the risk of problems at the check.
Very large "energy stations"
In recent years large power stations for remote work, campervans or camping have become popular. Although they're colloquially called power banks, in reality they have a capacity several times larger than standard models.
Devices with a capacity of 200–500 Wh (and sometimes even more) almost always exceed the permitted limits for passenger flights. From the point of view of the regulations they're treated like large industrial accumulators, and not small personal electronics.
In practice this means that they can't be brought into either carry-on or checked baggage. The only option remaining is special cargo transport or giving up taking the equipment on the trip.
Charging during the flight
Merely having a power bank on board is permitted, but its use is sometimes regulated by additional rules. Some airlines ask that during takeoff and landing you don't charge devices and put the cables away into your bag.
The reason is simple – at key moments of the flight the crew wants to limit loose wires and additional sources of heat. It also happens that the staff reacts when a power bank heats up excessively or remains connected unsupervised.
It's safest to charge a phone or tablet only when we're sitting in our seat and can control the device. It's not worth leaving the power bank connected in the locker or in a closed bag.
Additional situations to watch out for
Problematic can also be power banks with a built-in gas torch, a car jump-start function, replaceable cells or an unusual construction resembling tools. The more "specialist" the equipment, the greater the chance of an additional manual check.
If we care about quickly passing through the security gates, it's best to opt for a classic, simple model of standard capacity. In aviation minimalism really pays off.
Rules at individual airlines
Although the general regulations on power banks are very similar all over the world, every carrier may specify them in their own rules. The differences usually don't concern the Wh limits themselves, but the number of permitted pieces, the way of reporting larger batteries or the practice of checking at the gate.
In practice this means one thing: the rules are similar, but the way of enforcing them tends to vary. Some lines approach the subject more freely, others check electronics very thoroughly. So it's worth knowing the specifics of the carrier you're flying with.
✈️ Ryanair
This carrier is famous for the rigorous observance of regulations on baggage and safety. Power banks are treated exactly like spare lithium-ion batteries, and the staff often asks to show them during the check or boarding.
- only in carry-on baggage
- up to 100 Wh without consent
- 100–160 Wh after prior acceptance
- possible request to take the device out for a separate check
- a complete ban in the baggage hold
It's best to have the power bank in an easily accessible pocket of the backpack. Hiding it deep in the bag often ends in an additional manual check.
✈️ Wizz Air
The rules are very close to the general aviation standards. Power banks are classified as spare accumulators, which is why the same limits and precautions apply to them.
- exclusively in the cabin
- standard limit of 100 Wh
- larger capacities require the airline's consent
- treated identically to additional batteries
During holiday and charter flights the checks tend to be more thorough, which is why it's worth preparing your electronics for separate scanning.
✈️ Lufthansa
This line's policy is considered one of the most transparent. The regulations are clearly described and consistently in line with international safety norms.
- up to 100 Wh without a formal quantity limit (a reasonable number for personal use)
- 100–160 Wh a maximum of 2 pieces
- a ban on transport in checked baggage
It's a good solution for people travelling with a larger amount of electronics, e.g. a laptop, tablet or camera.
✈️ LOT Polish Airlines
The rules are typical of traditional network carriers. Power banks can be transported without a problem, as long as they fit within the standard limits and are in carry-on baggage.
- only carry-on
- up to 100 Wh without consent
- 100–160 Wh after the carrier's acceptance
- larger capacities not permitted
Classic 10,000–20,000 mAh models pass the check without any complications.
✈️ Eurowings
The carrier applies the same limits as most European lines. The difference lies mainly in the fact that during the check the staff often asks to show the batteries separately.
- up to 100 Wh without formalities
- larger ones after prior notification
- exclusively in the cabin
A good habit is to take the power bank out of the bag right away together with the electronics.
✈️ easyJet
The regulations are simple and clear, but great emphasis is placed on the technical condition of the devices. Damaged or overheating batteries may be questioned.
- only carry-on baggage
- 100 Wh as standard
- 100–160 Wh after prior acceptance
- a ban on transporting damaged batteries
It's best to travel with proven, branded equipment and avoid old, worn-out models.
A common rule for all carriers
Regardless of the airline, the safest choice is a power bank below 100 Wh, packed in carry-on baggage and easily accessible during the check. Such a set passes without a problem practically at every airport and with every airline.
Peli travel bags & backpacks
How many power banks can you take?
This is one of the most common questions before a plane journey. Many people focus exclusively on the capacity of a single power bank, and forget that the total number of batteries transported also matters. From the point of view of safety regulations, every additional piece is another source of lithium-ion energy on board, which is why airlines introduce quantity restrictions.
Fortunately for ordinary travellers the rules are quite flexible. If we're taking power banks for our own devices – phone, headphones, tablet or laptop – there are usually no problems at all. The trouble begins only when the number of batteries looks excessive or suggests commercial transport.
The most commonly accepted limits in practice
2–5 small pieces without a problem
Power banks up to 100 Wh (that is most 10,000–20,000 mAh models) can usually be transported in several copies. Two, three or even four pieces don't surprise anyone – especially if we're travelling with a larger amount of electronics or as a group of several people.
For the security services this is still "personal use." Such a set is easily enough for a long journey, transfers or many-hour sightseeing without access to a socket.
1–2 larger ones after notification
If we use larger power banks (100–160 Wh), the situation looks different. In this range prior notification to the airline is most often required, and the number of devices tends to be limited to one or two pieces.
This concerns mainly batteries for laptops, photographic equipment, drones or mobile work. In such cases it's worth checking the carrier's regulations before the flight and – if necessary – obtaining written consent.
The "reasonable amount for personal use" rule
This phrase very often appears in airlines' regulations. It doesn't mean a specific number, but common sense. Airport staff assess whether the number of batteries actually matches the needs of one traveller.
For example:
- 1–3 power banks + phone + tablet → completely normal
- a few batteries for a camera and laptop → understandable on a business trip
- 8–10 identical, new power banks in boxes → may arouse suspicions
In this last case the equipment may be treated as commercial goods, and not personal belongings. Then completely different transport regulations apply.
When can problems appear?
If you're flying with 10 or more pieces, especially factory-packed, the staff may consider them a commercial cargo. In such a situation you may be asked for additional explanations, and even to check in the equipment as cargo in accordance with the regulations for dangerous goods.
The situation looks similar when transporting power banks "for sale," in wholesale quantities or without original markings. This is decidedly not a good idea in carry-on baggage.
Practical tip
The safest and most universal set on an air journey is one main 20,000 mAh power bank and possibly one smaller spare. Such a configuration ensures charging comfort throughout the day, and at the same time fits within the limits of every airline and doesn't raise any doubts during the check.
In the case of batteries the aviation rule is simple: it's better to take fewer, but proven and good-quality devices, than to overdo the quantity and risk problems at the airport.
How to choose the ideal power bank for a plane?
When choosing a power bank with air travel in mind, it's worth taking into account a few key criteria that guarantee the transport will be trouble-free, and the device will work in any conditions. The market offers many models, but only some of them simultaneously meet the safety requirements and the practical needs of travellers.
Below I present the features worth paying attention to.
Optimal capacity of 10,000–20,000 mAh
This is the sweet spot for those travelling by plane. A power bank in this capacity range most often fits below the 100 Wh limit, thanks to which it doesn't require any formalities and can be transported in carry-on baggage without worry.
Such an accumulator provides enough energy for multiple charges of a smartphone, tablet or headphones during longer flights or a day full of sightseeing without access to a socket.
Below 100 Wh – the key limit
As you already know, the limit of 100 watt-hours is the boundary, after exceeding which a power bank starts to require the airline's consent. That's why it's best to aim for models that fit below this value without a problem. Thanks to this you'll avoid the need for prior notification, waiting for acceptance or explaining yourself at the security check.
CE and UN38.3 certificates – a guarantee of safety
A power bank with CE and UN38.3 markings meets the basic safety norms applied in aviation as well as general quality standards. These markings are a signal that the equipment has passed tests regarding resistance to shocks, temperature or short circuits.
Models lacking certificates (often cheap, no-name) tend to be stopped at the check, even if their capacity fits within the permissible range. Good markings are therefore not only a matter of quality, but also of safety and compliance with the regulations.
A solid casing – durability and protection
Travelling involves movement, shifting baggage, pressure in a backpack or bag. A power bank with a thin, shoddy casing may be damaged mechanically, which in turn may lead to a short circuit or other problems.
Choose models with a strong, stable construction. The casing should protect the accumulator against impacts, shocks and crushing. It's an element that admittedly doesn't affect the aviation regulations, but significantly raises the comfort and safety of use.
Fast USB-C PD (Power Delivery) charging
A USB-C port supporting Power Delivery is today the standard in most new smartphones, tablets or laptops. Thanks to this a power bank can quickly charge a device, and at the same time itself regenerates energy more efficiently than older models with USB-A.
Support for PD also means greater universality – one power bank can charge many types of devices without the need to carry several cables or adapters.
The practical benefits of such a choice
A power bank with a capacity of 10,000–20,000 mAh, with safety certificates and a solid casing, is the ideal combination of functionality and compliance with aviation regulations. Such a model:
- passes the security check without problems;
- doesn't require the airline's consent;
- provides a few full charging cycles for the phone;
- also works well on a land journey or a weekend trip.
Good planning and a well-considered choice of power bank are a simple route to a trouble-free and comfortable journey – regardless of the flight direction or the length of the route.
Summary – the most important rules in brief
Transporting a power bank on a plane requires knowledge of a few basic rules that ease the journey and ensure safety. The most important thing is that the device always be in carry-on baggage – transport in the baggage hold is forbidden because of the risk of fire or short circuit. The battery capacity decides what formalities will be required. Power banks up to 100 Wh can be taken without the carrier's consent, models from 100 to 160 Wh require prior acceptance, whereas those larger than 160 Wh are completely forbidden on passenger flights.
The safety of transport also depends on the appropriate securing of the device. The contacts shouldn't be left exposed – it's best to hide them in a case or pouch, to avoid a short circuit. It's also important that the battery parameters, such as the capacity in Wh or mAh, be visible on the casing, thanks to which airport staff can immediately assess compliance with the regulations. Under no circumstances should you take damaged, swollen or dubious-quality power banks, because they may pose a real threat to flight safety and are usually confiscated.
Following these simple rules makes travelling with a power bank trouble-free. It's enough to choose a device of an appropriate capacity, secure it well, make sure the parameters are visible and avoid damaged equipment. In this way both the security check and the comfort of use during the flight will go without stress.
