10000mAh Power Bank on a Plane? Wh & Airline Rules
Page updated · Sources and review method
At 3.7 V, 10,000 mAh is 37 Wh. That is within the common 100 Wh threshold, but airline and route conditions still apply.
The voltage matters.
These examples assume a 3.7 V nominal battery. Read your actual label: the same mAh at a different voltage gives a different Wh. USB charging output is not the nominal battery voltage.
This guide covers capacity, not certification, recalls or the condition of your particular product.
Power bank flight checker
Within the general 100 Wh capacity threshold. Select your airline to check its specific restrictions.
Is 10,000 mAh below the flight limit?
At 3.7 V, 10,000 mAh is 37 Wh; at 3.85 V it is 38.5 Wh. Both examples are comfortably below 100 Wh. The capacity result does not grant permission to recharge the bank on board or override an airline’s storage rules. Carry the actual device with its readable manufacturer label.
Do two 10,000 mAh power banks count as 74 Wh?
Each device has its own energy rating, and quantity is a separate restriction. Two 37 Wh banks are two power banks, not a single 74 Wh unit. Check the quantity column below: a one-bank airline can reject the second unit even though neither individual bank approaches 100 Wh.
What if my power bank says 22.5 W?
22.5 W describes output power, not stored energy. It does not replace the 37 Wh calculation or establish a flight allowance. A 10,000 mAh marketing name can also differ from the rated output capacity at USB voltage. Use matching battery-capacity and nominal-voltage values from the same specification.
Last checked 2026-11-04
How that capacity compares by airline
Capacity guidance at 3.7 V. Open an airline’s page for quantity and onboard restrictions.
| Airline | Capacity result | Quantity |
|---|---|---|
| American Airlines | Carry-on only | 2 |
| United Airlines | Confirm with the airline | Confirm |
| Delta Air Lines | Carry-on only | 2 |
| Southwest Airlines | Carry-on only | 1 |
| Emirates | Carry-on only | 1 |
| Qatar Airways | Carry-on only | 2 |
| British Airways | Carry-on only | 2 |
| Lufthansa | Carry-on only | 2 |
| Korean Air | Carry-on only | 2 |
| Singapore Airlines | Carry-on only | 2 |
| Cathay Pacific | Confirm with the airline | 2 |
| ANA | Carry-on only | 2 |
| Japan Airlines | Carry-on only | 2 |
| AirAsia | Confirm with the airline | Confirm |
| Etihad Airways | Carry-on only | 1 |
Power bank flight FAQs
Quick answers before you pack.
Is 10,000 mAh below the flight limit?
At 3.7 V, 10,000 mAh is 37 Wh; at 3.85 V it is 38.5 Wh. Both examples are comfortably below 100 Wh. The capacity result does not grant permission to recharge the bank on board or override an airline’s storage rules. Carry the actual device with its readable manufacturer label.
Do two 10,000 mAh power banks count as 74 Wh?
Each device has its own energy rating, and quantity is a separate restriction. Two 37 Wh banks are two power banks, not a single 74 Wh unit. Check the quantity column below: a one-bank airline can reject the second unit even though neither individual bank approaches 100 Wh.
What if my power bank says 22.5 W?
22.5 W describes output power, not stored energy. It does not replace the 37 Wh calculation or establish a flight allowance. A 10,000 mAh marketing name can also differ from the rated output capacity at USB voltage. Use matching battery-capacity and nominal-voltage values from the same specification.
How many Wh is 10,000 mAh?
At 3.7 V it is 37 Wh. Use the actual nominal battery voltage to calculate your device’s rating.
Can a 10,000 mAh power bank go in checked luggage?
No. Power banks must stay in the cabin regardless of capacity.