What is the largest power bank you can take on a plane?

Juice Up in the Air: Understanding Power Bank Limits for Flight

Staying powered up on the go is essential, especially during long journeys. Power banks are a lifesaver for travelers, but bringing them on a plane isn’t as simple as tossing them in your bag. Airlines have specific regulations regarding the size and capacity of power banks allowed on board, and understanding these rules is crucial for a smooth travel experience.

The magic number you need to remember is 100Wh (watt-hours). This is the general limit for power banks allowed in carry-on baggage without requiring any special permissions. Most airlines adhere to this guideline, aligning with international safety standards. But what exactly does 100Wh mean in practical terms?

Watt-hours are a measure of the total energy stored in the power bank. You can calculate the Wh rating by multiplying the battery’s voltage (V) by its capacity in ampere-hours (Ah). For example, a power bank with a voltage of 5V and a capacity of 20,000mAh (20Ah) has a Wh rating of 100Wh (5V * 20Ah = 100Wh). Many power banks clearly display their Wh rating, simplifying the process for travelers.

While 100Wh is the standard limit, there is a small window for slightly larger power banks. Some airlines may allow power banks up to 160Wh with prior approval. This requires contacting the airline directly and obtaining permission before your flight. It’s crucial to confirm their specific requirements and documentation needed. Don’t assume permission will be granted; always check beforehand to avoid disappointment at the airport.

Exceeding the 160Wh limit is generally prohibited. Power banks larger than this pose a potential fire risk and are not permitted in either carry-on or checked baggage. Trying to sneak a larger power bank through security can lead to confiscation and potential delays or even denial of boarding.

Here’s a quick recap for your next flight:

• 100Wh or less: Generally allowed in carry-on baggage without prior approval.
• 100Wh to 160Wh: May be allowed in carry-on baggage with prior airline approval. Contact the airline directly.
• Over 160Wh: Prohibited in both carry-on and checked baggage.

Beyond the Wh rating, remember these additional tips:

• Damaged power banks: Do not bring damaged or recalled power banks on board.
• Loose power banks: Keep your power bank in your carry-on bag; they are not allowed in checked baggage.
• Protect the terminals: Cover exposed terminals to prevent short circuits.

By following these guidelines, you can ensure a hassle-free travel experience and keep your devices powered up throughout your journey. Remember to plan ahead and check your airline’s specific regulations for the most up-to-date information.