Is a 20000mAh power bank allowed in a flight from Singapore International?

Power Up Before You Fly: Singapore Airport’s Power Bank Restrictions

Headed for Singapore’s bustling Changi Airport and thinking of packing your trusty 20,000mAh power bank? You might want to double-check the regulations. Singapore International Airport (SIN), like many others, enforces strict rules regarding lithium batteries and power banks, all in the name of passenger safety.

Contrary to what you might assume, even though your 20,000mAh power bank might seem essential for long flights, it is generally not permitted on flights departing from Singapore International. Here’s the breakdown:

• No Power Banks in Checked Baggage: Forget about slipping your power bank into your suitcase to save space. Regardless of its capacity, Singapore Airport prohibits loose lithium batteries and power banks in checked baggage. This is due to the potential for fire hazards caused by short circuits or damage during handling.

• Cabin Baggage Limits: While you might think you can simply carry it on board, size matters. Even for carry-on baggage, there are wattage limits. Singapore Airport adheres to the general aviation regulation that power banks exceeding a 160Wh (Watt-hour) power rating are not permitted in cabin baggage.

So, where does a 20,000mAh power bank fit in?

The challenge lies in converting mAh (milliampere-hours) to Wh (Watt-hours). While a 20,000mAh power bank might seem innocuous, its Wh rating often exceeds the acceptable limit. A common formula to estimate the Wh rating is:

Wh = (mAh / 1000) * Voltage

Most power banks operate at a voltage of 3.7V or 5V. Let’s calculate for both scenarios:

• 3.7V Power Bank: (20,000mAh / 1000) * 3.7V = 74Wh
• 5V Power Bank: (20,000mAh / 1000) * 5V = 100Wh

In both scenarios, a 20,000mAh power bank falls under the 160Wh limit. But remember this is an estimated calculation. It is crucial to check the actual Wh rating printed directly on your power bank itself. This is the definitive value that airport security will use. The voltage provided above should only be used to provide you with a rough estimate.

Why these rules?

Lithium batteries, when damaged or improperly manufactured, can overheat and potentially cause a fire. By limiting the size and requiring power banks to be carried in the cabin (where potential issues can be quickly addressed), airlines aim to minimize the risk of incidents during flight.

What are your options?

• Leave it behind: The simplest option is to leave your 20,000mAh power bank at home.
• Ship it: If you absolutely need it at your destination, consider shipping it ahead of time via a reputable courier service.
• Smaller Power Bank: Consider purchasing a smaller power bank that adheres to the 100Wh limit, or the 160Wh limit in Singapore. However, even with a smaller power bank, do not place it into your check-in luggage. Always take it with you as part of your hand luggage.
• Verify Before You Fly: Always check the exact Wh rating on your power bank and confirm the latest regulations with your airline and Singapore International Airport directly before your trip. Rules can change, and it’s always best to be prepared.

Don’t let a power bank misunderstanding derail your travel plans. By understanding the regulations and planning accordingly, you can ensure a smooth and hassle-free journey from Singapore International Airport.