Power banks have become indispensable travel companions in today’s connected world. These portable charging devices prove particularly valuable during flights, where access to power outlets may be limited or non-existent, especially on longer journeys.
However, flying with rechargeable batteries comes with specific regulations that travellers must understand to avoid complications at security checkpoints.
Basic Regulations: What You Need to Know
Power banks fall under the same category as other lithium battery devices like laptops and smartphones. While they are permitted on aircraft, several important rules apply:
- All power banks must be packed in carry-on luggage only
- Travellers are typically limited to carrying two spare batteries
- Devices must be completely powered off, not merely in sleep mode
- Individual capacities exceeding 100Wh require airline approval
Understanding Capacity Limitations
Most airlines enforce a 100Wh capacity limit for power banks without special permission – a threshold many laptop manufacturers design to with their 99.9Wh batteries.
For power banks between 100Wh and 160Wh, passengers must obtain explicit airline approval, typically during check-in.
Mark Robinson from Belkin notes: “There are two hard rules for power banks… Always carry your power bank with you into the cabin and never put a power bank in your hold baggage. Most airlines also restrict the capacity to below 27,000 mAh.”
Robinson emphasises the importance of purchasing devices from reputable manufacturers with proper safety certifications like CE or UKCA marks.
Potential Issues
Several other factors may prevent travellers from bringing power banks aboard:
- Worn or inadequate labelling that obscures capacity information
- Physical damage, including cracked casings or loose ports
- Removable batteries, which present additional safety concerns
In-Flight Usage Restrictions
Airline policies regarding power bank usage during flights vary considerably. Some carriers have implemented complete bans on in-flight power bank use due to safety concerns.
Singapore Airlines (SQ) prohibited their use in March 2025, with several other Asian carriers expected to follow this precautionary measure.
When aircraft outlets are available, passengers are generally advised against charging their power banks while seated. For devices requiring charging, airline-provided USB ports offer a safer alternative, though cybersecurity experts recommend using power-only cables to prevent potential data breaches.
Expert Travel Recommendations
Jonathan Nicholson from the UK Civil Aviation Authority emphasises proper handling: “Lithium batteries should be carried in your carry-on baggage. Power banks and spare batteries should also be in a cabin bag and should be completely turned off and not in standby mode.”
Belkin’s Robinson adds a practical safety tip: “When you are on the aircraft keep the power bank safe, make sure you don’t lose it down the side of your seat where it could get damaged by the seat mechanism.”
Selecting the Ideal Travel Power Bank
When choosing a power bank for air travel, consider these key features:
- Fast charging capabilities for both the power bank and connected devices
- Passthrough charging functionality, allowing simultaneous charging of the power bank and your devices
- Appropriate capacity that complies with airline regulations
- Quality construction from reputable manufacturers
Bottom Line
Modern smartphones like the Samsung Galaxy S24 Ultra and S25 Ultra feature significantly improved battery performance, potentially reducing reliance on power banks during travel.
As technology continues advancing, both device battery life and power bank efficiency will likely improve, further enhancing the travel experience for connected passengers.
Following these guidelines ensures travellers can safely bring their essential power banks aboard flights while maintaining compliance with aviation safety regulations designed to minimise risks associated with lithium battery transportation.
