Passengers aboard a Mumbai-bound express train experienced moments of sheer terror after a portable power bank suffered a catastrophic battery failure, exploding and filling the compartment with dense, acrid smoke.

According to eyewitnesses and railway officials, the incident occurred during transit when a commuter's lithium-ion power bank suddenly overheated. Within seconds, loud popping sounds echoed through the coach, followed by a sharp burst and flames that quickly ignited surrounding fabric and luggage. Thick plumes of gray smoke rapidly enveloped the enclosed compartment, causing breathing difficulties and sparking immediate panic among commuters.

Swift Response Prevents Major Disaster

Alert passengers immediately sounded the alarm and pulled the emergency chain to halt the train. Train ticket examiners, coach attendants, and personnel from the Railway Protection Force (RPF) rushed to the scene equipped with onboard fire extinguishers.

Key details of the emergency intervention include:

* Rapid Containment: Railway personnel and quick-thinking commuters deployed dry chemical powder extinguishers to douse the burning device before flames could spread to adjacent berths. * Evacuation and Ventilation: Windows and emergency exits were opened to vent the suffocating fumes, while passengers in adjacent rows were swiftly moved to safer sections of the train. * No Major Casualties: While several travelers experienced minor coughing and distress due to smoke inhalation, emergency medical teams attended to passengers at the next scheduled halt, confirming no severe burns or serious injuries.

Rising Concerns Over Lithium-Ion Battery Risks

The alarming mishap has once again thrown the spotlight on the safety vulnerabilities associated with low-quality, uncertified lithium-ion accessories in confined transit environments.

Thermal runaway in lithium-ion batteries can be triggered by internal short circuits, physical impacts, overcharging, or exposure to excessive heat. Once thermal runaway begins, temperatures can spike beyond 500 degrees Celsius within seconds, releasing toxic gases and volatile combustible vapors that are notoriously difficult to extinguish with conventional water.

Railway authorities frequently advise passengers to exercise caution when carrying portable charging banks, urging the public to avoid using unbranded accessories, refrain from charging devices under pillows or blankets, and immediately disconnect electronics if abnormal heating occurs.

Following a thorough safety inspection and clearance from mechanical and electrical engineers, the train was permitted to resume its journey to Mumbai with an accumulated delay.