
Chinese manufacturers of power banks – the ubiquitous portable batteries used by travellers to charge smartphones, tablets and laptops – are under increased public scrutiny, following a spate of incidents in which defective units were found to have caught fire during commercial flights.That prompted the Civil Aviation Administration of China (CAAC) to impose an emergency ban on air passengers carrying substandard power banks, a safety precaution that went into effect on June 28.Portable...