Is 20000mAh Power Bank Allowed in Flight? Airline Rules 2025

We all rely on our electronic devices when traveling, and having a power bank with enough capacity can make the journey much easier. But airline rules about battery capacity aren’t always straightforward. Many travelers ask, “Is 20000mAh power bank allowed in flight?” Whether you’re flying in Canada or abroad, it’s worth knowing the rules. This article explains how to bring a large-capacity power bank on board safely and within the rules. Read on to learn more!

Can You Bring a 20,000mAh Power Bank on a Flight?

Yes, you can. A 20,000mAh power bank is generally allowed on board as long as it’s packed in your carry-on baggage. Airlines and Transport Canada measure lithium-ion battery capacity in Watt-hours (Wh), and most allow up to 100Wh without special approval. A typical 20,000mAh power bank is rated around 74Wh, which is comfortably within the limit, so you can bring it with you hassle-free. But there are some rules you should follow:

• Carry-on baggage only: Power banks are not allowed in checked baggage due to the fire risk associated with lithium batteries.
• Capacity must be clearly marked: The power bank should have a visible label showing its capacity in mAh or Wh.
• Quantity limit: Passengers can usually carry 2-3 power banks for personal use, though this may vary by airline.

Well, can you take a power bank on an airplane? Yes — as long as it meets the required safety standards and stays within the airline's allowed capacity range, you'll have no issue bringing it on board.

Canadian Guidelines for Carrying Power Banks

Transport Canada and the Canadian Air Transport Safety Authority (CATSA) have established strict safety requirements for lithium-ion batteries (including power banks), including the official power bank limit on flight, which helps ensure all devices carried onboard are within safe energy thresholds.

Capacity restrictions

According to Transport Canada regulations, the energy rating of a power bank must not exceed 100Wh (watt-hours). If your power bank is between 100Wh and 160Wh, you'll need airline approval. All above 160Wh is generally banned from air travel.

Carry-on baggage requirements

All power banks must be placed in carry-on baggage and are strictly prohibited from being placed in checked baggage. This is because lithium-ion batteries may pose a risk of fire when under pressure or high temperature, and carrying them with you makes it easier to handle in an emergency.

Packaging and labeling

Power banks must have clear capacity labels (in mAh or Wh) for security personnel to check. If a power bank has no label or the capacity is unknown, it may be confiscated during security inspection. Keep it accessible for inspection and avoid mixing with metal objects.

Quantity and safety rules

While there is no strict limit on how many power banks you can bring, CATSA recommends carrying typically 2 to 3 devices. Power banks are treated as spare lithium batteries, so they must be stored in your carry-on and properly protected against short circuits. To stay safe, carry your power bank in a case or its original box, and make sure it doesn't touch metal items like keys or loose change.

International Standards and Airline Policies

When flying with a power bank, it's important to follow both Canadian regulations and international safety standards. Airlines like Air Canada and WestJet adhere to IATA guidelines, which allow power banks under 100Wh to be brought on board without prior approval.

Devices between 100Wh and 160Wh may be accepted with airline permission, while anything over 160Wh is generally prohibited. Power banks are required to have clear labeling and must be transported in carry-on baggage, as placing them in checked luggage is strictly prohibited.

To comply with these regulations, it's wise to choose a compact and certified device that fits within the limits. The Anker Nano Power Bank (30W, Built-In USB-C Cable), with its 10,000mAh capacity, offers a lightweight and airline-friendly design without compromising performance. Its small size makes it easy to carry, making it a reliable option for travelers who want hassle-free power on the go.

How to Check If Your Power Bank Is Within the Legal Limit

The key to determining whether a power bank can be brought on board an airplane is its rated energy (Wh). Although we usually see mAh (milliampere-hour) values when purchasing power banks, airlines and security agencies generally use Wh as a measurement standard. Here are some simple steps to check if your power bank is legal:

Step 1: Calculate Watt-hours (Wh)

Use the formula: Wh = mAh × Voltage (V) ÷ 1000. Most power banks have a nominal voltage of 3.7V. For example, 20,000mAh × 3.7V ÷ 1000 = 74Wh, which is less than 100Wh and meets the carry-on requirement.

Step 2: Check the capacity label

Make sure the capacity (mAh or Wh) is marked on the power bank case or packaging. CATSA requires that devices be marked; otherwise, they may be confiscated by security personnel. It is recommended to keep the original packaging or instructions for inspection.

Step 3: Check with the airline

If your power bank is close to or exceeds 100Wh, you will need to contact your airline in advance to apply for approval. Provide device model and capacity information to speed up approval.

Note: If the mobile power bank does not have a capacity label or the label is worn, it is recommended to replace the device or bring the manufacturer's specification certificate. Security personnel may refuse to release it because they cannot confirm the capacity.

Can You Use a Power Bank During the Flight?

Generally speaking, it can be used, but you need to be careful about how you use it.

• The capacity of the device must not exceed 100Wh.
• It can only be used to charge small electronic devices such as mobile phones, and cannot be used to continuously power laptops or other high-power devices.
• When using, avoid placing the power bank under a pillow, in a blanket, or in a confined space to prevent overheating.
• If the flight attendant asks you to turn off or put away your battery device, you should cooperate immediately.

For convenient in-flight charging, lightweight and portable options like the Anker MagGo Power Bank are an excellent choice. Its magnetic design makes it effortless to attach and use, while its compact build ensures it doesn’t clutter your space. With 10,000mAh high-capacity power, it stays well within airline limits and provides enough charge to keep your phone powered throughout the flight.

Special note: Do not plug the power bank into the seat power port. Some passengers are accustomed to plugging the power bank into the seat USB port for "reverse charging", which is not allowed. Airlines and flight attendants generally do not recommend plugging the power bank into the seat power supply, as this may cause safety hazards and even cause the seat power supply to short-circuit.

Best Practices for Traveling with Power Banks

To ensure your travels are smooth and safe, it's important to understand and follow best practices for carrying power banks. Here are some practical tips to help you comply with regulations and improve your travel convenience.

• Choose a compliant device: Select a power bank under 100Wh with clear labeling. For frequent flyers, compact and airline-approved models like the Anker Prime Power Bank (9.6K, 65W, Fusion)offer a practical solution, combining fast charging and safe travel compliance. With 65W high-speed charging, it can efficiently power small electronics during the flight. Its 9,600mAh capacity provides ample energy for multiple device top-ups.
• Pack it properly: Store the power bank in your carry-on bag using a protective case or insulating pouch. Avoid contact with metal items like keys or coins to reduce the risk of short circuits.
• Check airline and destination rules: Policies may vary between airlines and countries. Always review your airline's official guidelines and any international regulations relevant to your destination.
• Inspect before departure: Ensure your power bank is in good condition—no swelling, overheating, or visible damage. Avoid using uncertified or low-quality products for safety reasons.

Conclusion

In short, the answer to "Is a 20000mAh power bank allowed in flight?" is yes, but you need to comply with relevant regulations. In Canada and most international routes, as long as the rated capacity of the power bank is below 100Wh and it is properly placed in the carry-on luggage, it is allowed to be carried without declaration.

By understanding the regulations, mastering the power conversion method, and choosing a device with clear markings and in good condition, you can easily deal with airport security and start your journey with peace of mind. For a safe and hassle-free option, check out Anker power banks and find one that fits your travel needs today.

FAQs

Are 20000mAh power banks allowed on planes?

Yes, they are generally allowed on planes as long as they comply with airline regulations. Most airlines permit power banks under 100Wh capacity, and a 20000mAh device usually falls within this limit. It's important to carry the power bank in your carry-on luggage rather than checked baggage, since airlines prohibit lithium batteries in checked bags due to safety concerns. Always check with your airline before flying to confirm their specific rules.

Is 20,000 mAh TSA approved?

The TSA follows international guidelines regarding lithium batteries, allowing power banks under 100Wh in carry-on luggage. A 20000mAh power bank typically has about 74Wh capacity, which means it is TSA-approved for carry-on but not for checked baggage. It's recommended to keep the power bank easily accessible during security checks. Checking power banks is prohibited because of fire hazards related to lithium batteries.

Can I check in a 20000mAh power bank?

No, you cannot check in a 20000mAh power bank. Airlines and international aviation authorities prohibit carrying lithium-ion batteries like power banks in checked baggage because of the risk of fire. Instead, you must carry them in your carry-on luggage where they can be monitored. Before traveling, verify the airline's policies to ensure compliance and avoid any delays or confiscations at the airport.

What is the largest power bank allowed on a plane?

Most airlines allow power banks up to 100Wh without requiring special approval. Power banks with capacities between 100Wh and 160Wh may be allowed, but usually require airline permission prior to travel.

Any power bank exceeding 160Wh is generally prohibited on passenger aircraft. Always check with your airline or official aviation authority before flying, as policies can vary and safety regulations are strictly enforced.