Strict Rules for Bringing Power Banks on Trains That Are Not Widely Known
Source: Antara News
Amid increasing gadget usage during travel, power banks have become devices that passengers almost always carry. However, many passengers don't realize that besides airplanes, trains also have specific regulations regarding these charging devices.
Why must these devices be regulated? The material inside power banks is highly flammable lithium-ion batteries. The combination of physical damage, misuse, or device age makes power banks risk triggering fires.
For this reason, PT Kereta Api Indonesia (KAI) recently issued Power Bank Regulations to minimize risks that could disrupt Travel Safety.
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Power Bank Requirements on Trains
PT KAI reminds passengers to pay attention to the power capacity of power banks they carry. Capacity is calculated by the formula: Wh = (mAh capacity x Voltage) / 1,000
Additionally, passengers must ensure power banks have official labels showing their capacity.
These requirements help officers verify devices remain within safe limits.
Prohibition on Charging Power Banks on Trains
A key point in these new rules is the ban on recharging power banks using Train outlets.
This means power banks cannot be connected to available power sources inside trains.
This policy exists because train outlets are only for low-power devices like phones, earphones, tablets, and laptops. Beyond these, including power banks, are prohibited.
"So, don't arbitrarily plug in unapproved devices!" wrote PT KAI in an Instagram post.
These new regulations aim to minimize fire risks, ensuring safety, security, and travel comfort.
Similar Practices by International Airlines
Strict power bank rules are also enforced by global veteran airline Emirates, effective October 1, 2025.
In its official announcement, Emirates stated power banks may still be carried in cabins but not used—neither for charging other devices nor recharging themselves using aircraft power sources.
Additionally, passengers may only carry one power bank under 100 watt-hours.
Emirates explained recent years saw increased lithium battery incidents across the aviation industry.
Power banks typically use lithium-ion or lithium-polymer batteries containing lithium ions in electrolyte solution moving between electrodes during charging/discharging.
Overcharging or damage can cause thermal runaway—uncontrolled battery temperature acceleration.
"This may lead to dangerous consequences like fires, explosions, and toxic gas release," Emirates clarified.
The Airline added that many power banks lack adequate protection standards against overcharging, heightening risks.
Thus, Emirates requires power banks be placed in easily accessible locations for crew to respond swiftly during emergencies.
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