
Need to bring a portable charger on flights? This guide covers everything you need to know about traveling with portable chargers on air—TSA Portable Charger regulations, Airline-specific policies, International flight rules and how to keep your phone charged during a flight.
TSA Rules for Bringing Portable Chargers on Flights

Capacity | Is Allowed? | Capacity Notes |
≤ 100Wh (27,000mAh) | ✅ Yes | Most common battery capacity. |
100Wh – 160Wh | ⚠️ Yes (With Approval) | Capacity for laptop Portable Chargers. |
> 160Wh | ❌ No | Capacity for professional equipment. |
How to Calculate Watt-Hours (Wh):
Voltage (V) × Capacity (Ah) = Wh
If I have a 20,000mAh Portable Charger at 3.7V, the Wh is:
(20,000mAh ÷ 1000) × 3.7V = 74Wh ≤ 100Wh, so I can bring the 20,000mAh Portable Charger on flights.
Carry-On vs. Checked Luggage Rules
- Allowed in Carry-On: You can bring portable chargers ≤ 100Wh.
- Not Allowed in Checked Bags: All lithium batteries must stay in the cabin according to TSA.
Bring a Portable Charger on Flights: Airline-Specific Policies
Airline | Policy |
≤ 100Wh in carry-on; 100-160Wh with approval. | |
Damaged batteries are not allowed. | |
2 batteries per passenger. | |
≤ 100Wh. |
Pro Tip: Always check your airline’s website for airline-specific portable chargers policies before flying!
Bring a Portable Charger on Flights: International Flight Restrictions
- Europe (EU/UK): Follows ≤ 100Wh rules, 100-160Wh need approval from the airline.
- Australia: Portable Chargers > 160Wh is not allowed.
- China & Middle East: Some airports may inspect your portable chargers.

What Happens If You Don’t Follow the Restrictions?
- TSA will take your portable charger.
- The officers might inspect it again.
- Fines are rare, but if you violate the rules repeatedly, you might be charged.
Always remember to check airline policies before flying.Need more travel tips? Check our guide for detailed fight restrictions.
How to Keep Your Phone Alive on Flights?
- Use the airport phone chargers. Charge your phone before boarding.
- Bring a portable charger with you (under 100Wh).
- Use the in-flight chargers—most international flights offer USB or AC sockets.
- Turn on airplane mode or power-saving mode, and download music, movies, maps before boarding.
Additional Tips for Long Flights:
✔ Lower screen brightness.
✔ Close apps when not use.
✔ Bring a travel adapter (some planes use different plug types).
By following these steps, you can stay connected before and after landing! ✈️🔋
FAQ: Can I Bring a Portable Charger on Flights?
Can I bring a 20,000mAh portable charger on a plane?
Yes, if it’s ≤ 100Wh (most are ~74Wh).Are portable chargers allowed on international flights?
Yes, but check local regulations (e.g., Mainland China is strict).Can I use my portable charger during the flight?
No, airlines prohibit charging devices during takeoff/landing.







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