Air travellers are being reminded of vital safety guidelines regarding portable power banks following an incident yesterday where a device caused a fire on an aircraft. The event underscores the potential hazards associated with lithium-ion batteries and the importance of adhering to airline and international aviation regulations designed to mitigate such risks.
The primary concern with power banks stems from their lithium-ion batteries, which can overheat, short-circuit, and even ignite if damaged, improperly manufactured, or subjected to extreme temperatures. Aviation authorities, including the International Air Transport Association (IATA) and the UK's Civil Aviation Authority (CAA), have long-established rules for their carriage. Critically, power banks must always be carried in cabin baggage, never in checked luggage. This allows cabin crew to quickly respond if a device begins to overheat or shows signs of malfunction.
Capacity restrictions are also in place. Most airlines permit power banks with a capacity of up to 100 watt-hours (Wh) without prior approval. Devices between 100 Wh and 160 Wh typically require airline permission, and passengers are usually limited to carrying two such devices. Power banks exceeding 160 Wh are generally prohibited from being carried on an aircraft altogether. Passengers can usually find the watt-hour rating printed on their power bank, or calculate it by multiplying the voltage (V) by the milliampere-hour (mAh) and dividing by 1000 (V x mAh / 1000 = Wh).
Beyond capacity, the condition of the power bank is paramount. Travellers are advised to ensure their devices are in good repair, free from any signs of damage such as swelling, cracks, or leaks. Using uncertified or counterfeit power banks, which may not meet safety standards, also poses a higher risk. If a power bank has been recalled by its manufacturer due to safety concerns, it should not be taken on a flight.
For UK travellers planning upcoming trips, it is always recommended to check the specific policies of their airline before flying, as some carriers may have slightly more stringent rules. While these incidents are rare, the potential consequences highlight why awareness and compliance with these safety measures are essential for the well-being of all passengers and crew.
Practical advice for UK travellers includes purchasing power banks from reputable retailers, keeping them in their original packaging or a protective case to prevent accidental activation or damage, and immediately informing cabin crew if a device becomes hot, smells unusual, or changes shape during a flight. Always ensure the device is fully switched off when not in use, and avoid overcharging it before travel.