Carrying a portable charger (commonly known as a power bank) on a plane is permitted under current international aviation regulations. However, strict safety guidelines and capacity limits apply. This comprehensive guide, based on the latest standards from the International Air Transport Association (IATA) and the U.S. Transportation Security Administration (TSA), outlines everything you need to know to travel safely and compliantly with your device.
Are Portable Chargers Allowed on Planes?
Yes, passengers are permitted to bring portable chargers in carry-on baggage only. These devices are strictly prohibited in checked luggage due to the potential fire risk posed by lithium-ion batteries. As they are categorized as "spare lithium batteries," specific rules apply.
TSA & IATA Regulations (Updated for 2025)
Carry-On Requirement:
Portable chargers must be packed in carry-on bags.
Power banks are not allowed in checked baggage under any circumstances.
Capacity Restrictions:
≤ 100Wh (Watt-hours): Permitted without prior airline approval.
100Wh to 160Wh: Permitted with airline approval, typically limited to two units per passenger.
> 160Wh: Not allowed on passenger aircraft.
How to Convert mAh to Wh
Most power banks display their capacity in mAh (milliamp-hours), not Wh. Use the following formula to determine the watt-hours:
Wh = (mAh × Voltage) / 1000
Standard lithium-ion battery voltage is typically 3.7V or 3.85V.
| Capacity(mAh) | Typical Voltage (V) | Calculated Watt-Hours (Wh) | Airline Approval Needed |
|---|---|---|---|
| 5,000 mAh | 3.7 V | 18.5 Wh | No |
| 10,000mAh | 3.7 V | 37Wh | No |
| 20,000 mAh | 3.7 V | 74 Wh | No |
| 26,800 mAh | 3.7 V | 99.2 Wh | No |
| 30,000 mAh | 3.7 V | 111 Wh | Yes |
| 50,000 mAh | 3.7 V | 185 Wh | Not allowed |
Airline-Specific Guidelines
While most airlines follow IATA guidelines, variations exist:
U.S. Airlines (e.g., Delta, United, American): Accept power banks <100Wh without declaration.
European & Asian Carriers (e.g., Lufthansa, ANA, Emirates): May require visible labeling or documentation of battery capacity.
Southwest Airlines (effective May 2025): Requires power banks to be stored visibly, not in overhead compartments.
Always verify your airline’s specific rules before departure.
Airport Security Tips
Ensure partial charge: TSA may request the device be powered on.
Label capacity clearly: Devices must show mAh or Wh capacity.
Place accessibly: Keep it in an easy-to-reach area in your carry-on.
Use protection: The Original packaging or a padded case is recommended.
Proactively declare: If near or above 100Wh, inform security staff.
Top Travel-Ready Portable Chargers
Best for Short Trips:
iWALK LinkMe Plus 3350mAh – Ultra-light, pocket-sized convenience for quick getaways.
Ideal for Long-Haul Flights:
iWALK LinkPod 4 4500mAh – Built-in cable and compact design provide practical long-use power.
For Business Travelers:
iWALK LinkPod Style PD 20W – Includes adjustable stand and fast charging, ideal for working inflight.
Frequently Asked Questions
Q: How many portable chargers can I bring?
A: Up to 3–4 power banks under 100Wh each are usually acceptable. Check with your airline for limits.
Q: Do power banks need to go in a clear plastic bag?
A: No, but they must be removed from bags for separate screening.
Q: What if my charger lacks a capacity label?
A: It may be confiscated. Choose a device with clear labeling or carry the product documentation.
Q: Can I use a portable charger during a flight?
A: Yes, unless your airline imposes specific restrictions, usage in-flight is allowed.
Final Takeaway
Portable chargers are indispensable travel tools, and you can fly with them in 2025 if you follow these key guidelines:
Carry them onboard, never check them in.
Stay under 100Wh, or get prior airline approval.
Label the device capacity clearly.
Comply with all airport screening protocols.
With the right charger and proper preparation, you’ll enjoy stress-free travel with fully charged devices.
