Can I carry a 20000mAh power bank in flight?

Published on: September 18, 2025 • Categories: GAMING and ENERGY, TIPS

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Can I Carry a 20000mAh Power Bank on a Flight?

A comprehensive guide to airline regulations and safety tips for traveling with power banks

Quick Answer

Yes, you can carry a 20000mAh power bank in your carry-on luggage on most airlines. However, it is not allowed in checked baggage due to safety regulations. There are specific rules regarding capacity, labeling, and quantity that you should be aware of before flying.

Understanding Power Bank Capacity

Power bank capacity is measured in milliampere-hours (mAh), which indicates how much charge the battery can hold. The important factor for air travel is the watt-hour (Wh) rating, which is a measure of energy capacity.

To calculate watt-hours: mAh × Voltage ÷ 1000 = Wh

Most power banks have a voltage of 3.7V. So a 20000mAh power bank would be:

20000mAh × 3.7V ÷ 1000 = 74Wh

Capacity (mAh)	Watt-hours (Wh)*	Allowed on Flight
Up to 20,000mAh	Up to 100Wh	Yes (carry-on only)
20,001-32,000mAh	101-160Wh	Airline approval required
Over 32,000mAh	Over 160Wh	Generally not allowed

*Assuming standard 3.7V lithium-ion batteries

TSA and International Regulations

The Transportation Security Administration (TSA) and international aviation authorities like ICAO and IATA have specific rules for carrying portable electronic devices containing lithium batteries:

Power banks must be carried in carry-on baggage only
Power banks must be for personal use
Each power bank must be under 100Wh (or up to 160Wh with airline approval)
Terminals must be protected from short circuit (cover exposed terminals with tape or keep in original packaging)
The power bank must have a clearly marked capacity (mAh or Wh)

Important Warning

Never pack power banks in checked luggage. This is strictly prohibited by all major airlines and aviation authorities due to fire risk in the cargo hold.

Airline-Specific Policies

While most airlines follow the standard international regulations, some may have additional restrictions:

Delta Airlines

Allows power banks up to 160Wh in carry-on baggage. Those between 101-160Wh require airline approval. Maximum two spare batteries.

United Airlines

Permits power banks under 100Wh without restriction. Those between 100-160Wh require approval. Limited to two spare batteries per passenger.

Emirates

Allows power banks up to 160Wh in carry-on only. Power banks must be individually protected to prevent short circuits.

British Airways

Permits power banks up to 100Wh without restriction. Those between 101-160Wh require approval. Maximum of one spare per person.

Always check with your specific airline before traveling, as policies can change.

Tips for Traveling with Power Banks

Travel Safely with Your Power Bank

Keep your power bank in your carry-on bag, not checked luggage
Protect the terminals from short-circuiting by placing it in a protective case or original packaging
Ensure the capacity (mAh or Wh) is clearly marked on the power bank
Carry only what you need for your journey
Charge your power bank before flying as some airports may require you to demonstrate it can power on
Be prepared to remove it from your bag during security screening

International Travel Considerations

When traveling internationally, be aware that some countries may have additional restrictions:

Some countries limit the number of power banks you can bring
Certain airlines in specific regions might have stricter policies
Always check the aviation authority website of your destination country

What If Your Power Bank Is Confiscated?

If your power bank doesn’t meet requirements or is in checked luggage, security may confiscate it. To avoid this:

Verify your power bank’s capacity before traveling
Keep it in your carry-on baggage
Ensure it’s clearly marked with its capacity
Have airline approval ready if carrying between 101-160Wh

Conclusion

Traveling with a 20000mAh power bank is generally permitted on flights as long as you follow the regulations. Remember to always carry it in your hand luggage, ensure it’s clearly marked with its capacity, and protect it from short circuits. When in doubt, check with your airline before your flight to ensure a smooth travel experience.

Safe travels and stay charged!