30000mAh Power Bank on a Plane? Wh & Airline Rules
Page updated · Sources and review method
At 3.7 V, 30,000 mAh is 111 Wh. This exceeds 100 Wh. Some airlines allow it with approval; others prohibit it.
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
FAA baseline: over 100 Wh through 160 Wh requires airline approval, with at most two spares. Some airlines prohibit these power banks.
Is 30,000 mAh allowed without approval?
At 3.7 V it is 111 Wh, so it is above the common 100 Wh threshold. A bank rated at 3.85 V calculates to 115.5 Wh. Neither result belongs in the under-100 Wh category. Airlines with a 100 Wh cap, including the listed American, Delta and Emirates policies, do not accept these examples.
What does airline approval involve?
Only an airline that currently permits banks above 100 Wh can grant approval. Contact the operating carrier before departure with the exact model and label; do not treat the web checker or an approval from another airline as permission. A connection on a carrier capped at 100 Wh can make the device unsuitable for the whole trip.
Can I put it in checked baggage or partially discharge it?
No. A lower charge percentage does not change the battery’s rated Wh, and checked baggage is not an alternative for a power bank. If it cannot meet every leg’s requirements, choose a compliant lower-capacity device. Reconfirm 2027 bookings because the forthcoming IATA edition removes the higher-capacity power-bank approval provision.
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 | Not allowed | 2 |
| United Airlines | Confirm with the airline | Confirm |
| Delta Air Lines | Not allowed | 2 |
| Southwest Airlines | Not allowed | 1 |
| Emirates | Not allowed | 1 |
| Qatar Airways | Not allowed | 2 |
| British Airways | Not allowed | 2 |
| Lufthansa | Airline approval needed | 2 |
| Korean Air | Airline approval needed | 2 |
| Singapore Airlines | Airline approval needed | 2 |
| Cathay Pacific | Confirm with the airline | 2 |
| ANA | Airline approval needed | 2 |
| Japan Airlines | Airline approval needed | 2 |
| AirAsia | Confirm with the airline | Confirm |
| Etihad Airways | Not allowed | 1 |
Power bank flight FAQs
Quick answers before you pack.
Is 30,000 mAh allowed without approval?
At 3.7 V it is 111 Wh, so it is above the common 100 Wh threshold. A bank rated at 3.85 V calculates to 115.5 Wh. Neither result belongs in the under-100 Wh category. Airlines with a 100 Wh cap, including the listed American, Delta and Emirates policies, do not accept these examples.
What does airline approval involve?
Only an airline that currently permits banks above 100 Wh can grant approval. Contact the operating carrier before departure with the exact model and label; do not treat the web checker or an approval from another airline as permission. A connection on a carrier capped at 100 Wh can make the device unsuitable for the whole trip.
Can I put it in checked baggage or partially discharge it?
No. A lower charge percentage does not change the battery’s rated Wh, and checked baggage is not an alternative for a power bank. If it cannot meet every leg’s requirements, choose a compliant lower-capacity device. Reconfirm 2027 bookings because the forthcoming IATA edition removes the higher-capacity power-bank approval provision.
How many Wh is 30,000 mAh?
At 3.7 V it is 111 Wh. Use the actual nominal battery voltage to calculate your device’s rating.
Can a 30,000 mAh power bank go in checked luggage?
No. Power banks must stay in the cabin regardless of capacity.