Singapore Airlines Power Bank Policy: Allowed Sizes, Restrictions, & Travel Tips

Airlines have become stricter about lithium battery safety in recent years due to concerns about overheating and fire risks. As a result, you need to pay close attention to where and how you carry your power banks. This guide explains everything you need to know about the approved Singapore Airlines power bank size and usage limits, so you can travel with confidence.

Quick Answer: Singapore Airlines Power Bank Policy Summary

If you’re travelling with a power bank on Singapore Airlines, the main rule you need to remember is simple: you can bring it in your hand luggage, but it is not allowed in checked baggage, and its capacity and usage are strictly regulated for safety reasons. Here are the key restrictions to note:

• You must carry power banks in your cabin baggage only, never in checked luggage.
• You are allowed a maximum of two power banks per passenger.
• Power banks up to 100Wh are generally permitted without approval.
• Power banks between 100Wh and 160Wh require airline approval before travel.
• Power banks above 160Wh are not allowed on board.
• You are not allowed to use or charge power banks during the flight.
• Power banks should be kept in a safe place such as under the seat or in the seat pocket.
• Damaged, swollen, or unlabelled power banks may be refused at security.

Why Are Power Banks Banned from Checked Baggage?

This is mainly because power banks contain lithium-ion batteries, which can become unstable if they are damaged, overheated, or exposed to pressure changes in the aircraft’s cargo hold. Unlike the passenger cabin, the cargo area is not accessible during the flight.

In the cabin, crew members can respond immediately if a power bank overheats or malfunctions, which reduces the danger to passengers and the aircraft. In contrast, a fire or thermal runaway incident in the cargo hold is much harder to detect and control in time. That is why aviation safety regulations require all power banks to be carried in hand luggage only.

Quantity and Capacity Limits Explained

Understanding power bank limits is one of the most important parts of following the Singapore Airlines power bank ban-related information. The airline uses quantity limits and watt-hour capacity limits to determine what you may carry. Knowing both rules helps ensure your power bank is accepted.

Maximum Two Power Banks Per Passenger

Singapore Airlines allows you to carry a maximum of two power banks. This rule applies regardless of the size or capacity of each device. Even if both power banks are small, they still count toward the total limit. This means you need to plan ahead before packing your hand luggage. If you carry more than two, airport security may require you to leave the extra ones behind.

Watt-Hour (Wh) Capacity Tiers

Power banks are also controlled based on their watt-hour (Wh) rating, which measures total battery energy. If your power bank is 100Wh or below, it is generally allowed without needing airline approval. This covers most standard power banks used for phones and small devices. If your power bank is between 100Wh and 160Wh, you can still bring it, but you must get approval.

Power Banks Over 160Wh

Power banks that exceed 160Wh are not allowed on Singapore Airlines flights under any circumstances. These batteries are considered too powerful and pose a higher safety risk during air travel. Because of this, they cannot be carried in either checked baggage or hand luggage. If you have one, you will need to leave it behind or make alternative arrangements before your flight.

How Do You Calculate Your Power Bank's Watt-Hour Rating?

Before travelling, it is worth checking whether your power bank falls within the airline's permitted limits. Many manufacturers display watt-hours directly on the product label, but some only show voltage and milliamp-hours. Fortunately, calculating watt-hours is simple.

Step-by-Step Wh Calculation

1. Find the battery capacity (mAh)

Look for a number such as 10,000mAh, 20,000mAh, or 26,800mAh printed on your power bank. This is usually found on the back or underside of the device.

2. Find the battery voltage (V)

Most lithium-ion power banks use a nominal voltage of around 3.7V or 3.85V. This value is usually written on the label along with the mAh rating.

3. Use the formula to calculate Wh

Multiply mAh by voltage, then divide by 1,000. The formula is: Wh = (mAh × V) ÷ 1000. This converts the battery's capacity into the measurement used by airlines.

Common Power Bank Sizes and Their Wh Ratings

Before flying, it helps to know how common power bank sizes translate into watt-hours. This gives you a quick idea of whether your device is airline-friendly.

• 5,000mAh: 18.5Wh (very small, usually allowed)
• 10,000mAh: 37Wh (standard travel size, widely accepted)
• 20,000mAh: 74Wh (popular for long trips, still under 100Wh)
• 26,800mAh: 99Wh (maximum typical limit without approval)
• 30,000mAh: 111Wh (airline approval required)
• 40,000mAh: 148Wh (approval required, close to upper limit)

Can You Use a Power Bank During a Singapore Airlines Flight?

No, you cannot use a power bank during a Singapore Airlines flight. Even though you are allowed to travel with one in your hand luggage, you are not permitted to use it to charge devices while you are onboard. This includes charging your phone, tablet, or laptop during the flight. The restriction is in place to reduce the risk of lithium battery overheating.

This rule follows international aviation safety guidance, including standards set by the UK Civil Aviation Authority (CAA), which classifies power banks as restricted items that must be carried in cabin baggage and used with caution.

Stowage and Protection Requirements on Board

Following the storage requirements is just as important as meeting the capacity limits. Proper stowage reduces the risk of accidental damage, short circuits, and overheating. Here are some requirements worth considering:

• Keep power banks in your cabin baggage only.
• Store them in a seat pocket or under the seat in front of you.
• Do not place them in overhead lockers.
• Protect exposed terminals from short circuits.
• Use protective pouches or separate bags when possible.
• Avoid carrying damaged, swollen, or defective power banks.

What Happens If You Break Singapore Airlines' Power Bank Rules?

If you are travelling with a power bank and it does not meet the airline’s rules, you may be stopped during security or boarding. In many cases, airport staff will ask you to remove the power bank from your luggage if it is found in checked baggage. If it exceeds the allowed capacity or quantity, you may be required to leave it behind before you can continue your journey.

In more serious cases, the airline or security authorities may refuse to allow the device on board at all. Your luggage may also be opened for inspection if a restricted power bank is detected inside. To avoid these issues, it is always best to check the watt-hour rating, carry it in your hand luggage, and follow the airline’s safety instructions before you travel.

Singapore Airlines vs UK Airlines — Power Bank Policy Comparison

The Singapore Airlines power bank policy is similar to many UK airline rules, but there are a few differences. Most airlines follow international lithium battery regulations while adding their own safety measures. Understanding these differences can help you prepare for international travel.

Carry-On vs Checked Baggage

Singapore Airlines requires all power banks to be carried in hand luggage only. UK airlines such as British Airways, easyJet, Jet2, and Virgin Atlantic generally follow the same approach. This consistency makes it easier for UK passengers connecting between airlines.

Capacity Limits

Singapore Airlines permits power banks up to 100Wh without approval and 100Wh-160Wh with approval. British Airways and several other UK carriers apply very similar thresholds. These limits are based on international aviation safety standards rather than airline preference.

Number of Power Banks Allowed

Singapore Airlines limits passengers to two power banks. Some UK airlines are more generous, with certain carriers permitting several additional units under specified capacity limits. You should always verify the latest airline-specific allowance before departure.

In-Flight Usage

Singapore Airlines does not allow you to use or charge power banks during the flight. UK airlines are generally more relaxed, with some allowing limited in-seat use under supervision. However, policies can vary depending on aircraft type and route.

Recommended Power Banks for Travelling

Choosing the right power banks can make travelling much more convenient. The best option depends on your devices, charging needs, and travel style. The following power banks offer a balance of portability, reliability, and airline-friendly capacities.

Anker Prime Power Bank (26K, 300W)

The Anker Prime Power Bank (26K, 300W) is a reliable travel companion. With a 26,250mAh capacity (99.75Wh), it stays within the typical airline limit for power banks allowed in hand luggage, making it suitable for long-haul travel. This gives you enough backup power to keep your devices running throughout the journey without worrying about running out of charge.

Its 300W output and multiple ports allow you to charge several devices at once. If you're in a rush before boarding, the fast-recharging feature can bring the power bank to 50% in just 13 minutes, so you're not left unprepared. The smart display and app control also make it easy to check remaining battery and manage power usage at a glance. With its compact, flight-friendly design, it offers a practical way to stay connected and productive while travelling.

Anker Prime Power Bank (20K, 220W)

The Anker Prime Power Bank (20K, 220W) is a more compact travel-focused option that fits well with Singapore Airlines’ hand luggage rules, thanks to its 20,100mAh (72.36Wh) capacity. This makes it easy to carry in your cabin bag without worrying about exceeding airline battery limits, while still giving you enough power for a full day of device usage. Its 220W total output is intelligently distributed across multiple ports, so you can power different devices at the same time.

Unlike bulkier high-capacity models, this version prioritises speed and convenience, which is useful when travelling between terminals or on tight flight schedules. Its 140W max fast charging support allows your laptop or compatible devices to regain power quickly during short layovers, reducing downtime when you're on the move. With its lighter, more portable design, it is built for efficient travel where space, speed, and practicality matter more than maximum capacity.

Anker Nano Power Bank 5,000mAh

The Anker Nano Power Bank (5,000mAh) is a compact travel-friendly option that fits easily into your pocket or small bag when flying. Its 5,000mAh capacity is well within airline hand-carry limits, making it a convenient choice for short trips or as a backup power source during flights and airport layovers. The ultra-slim 0.3-inch design keeps it lightweight and unobtrusive, which is ideal when you want to travel with minimal bulk.

With Qi2 and MagSafe-compatible 15W fast wireless charging, it allows you to conveniently charge your iPhone without needing extra cables. Its advanced cooling system, supported by graphene and dual NTC chips, also helps maintain safe temperatures below 40°C, ensuring stable performance even during extended use. Paired with its smart safety features, this is one of the wireless power banks that offers a travel-safe charging solution for frequent flyers.

Anker MagGo Power Bank (10K, 35W)

The Anker MagGo Power Bank (10K, 35W) is designed for light, efficient travel, making it a practical companion when flying with Singapore Airlines where cabin-friendly power banks are preferred. Its 10,000mAh capacity keeps it well within hand luggage limits, so you can carry it without concerns about restrictions. Its built-in USB-C cable and adjustable Apple Watch charger also reduce the need for extra accessories, which is useful when you want to travel with less clutter.

Its 30W USB-C output and a dedicated 5W Apple Watch charger allows you to power multiple Apple devices efficiently at the same time. The fast 1.5-hour recharge time means you can quickly restore the power bank before your next departure, reducing downtime between trips. When paired with its ultra-compact, airline-friendly design, it offers a reliable charging solution that fits seamlessly into frequent travel routines.

Conclusion

Understanding the Singapore Airlines power bank policy is essential before travelling. The most important rules are to carry power banks in cabin baggage, stay within the permitted watt-hour limits, and bring no more than two units. You should also remember that Singapore Airlines does not allow passengers to use or charge power banks during the flight. Checking your power bank's specifications before departure can help you avoid delays and unexpected issues at the airport.

FAQ

Can I bring a 20000mAh powerbank in the airport?

Yes. A 20,000mAh power bank is usually about 70–75Wh, which is under the 100Wh airline limit. It is allowed in cabin baggage on Singapore Airlines but not in checked luggage. Ensure it is properly labelled and in good condition.

Can you fly with a 30000mAh power bank on a plane?

Yes, but it may need approval. A 30,000mAh power bank is typically around 100–120Wh, which can exceed the 100Wh limit. It must be in cabin baggage, and devices between 100–160Wh usually require airline approval before flying.

Is a 120W power bank allowed in a flight?

Yes, depending on Wh capacity. The 120W rating refers to output, not battery size. If the battery is under 100Wh, it is allowed freely; if 100–160Wh, airline approval may be required. It must be carried in cabin baggage.