New York City delivery workers have to deal with an array of threats: speeding cars, volatile weather, armed robbers and app algorithms that can “deactivate” them if they don’t rush to customers quickly enough. Lately, workers have added another to the list – their electric bikes bursting into flames.The powerful lithium ion batteries used in small electric vehicles are responsible for a growing epidemic [...] Click here to view original web page at www.theguardian.com
