New York City’s top fire official has asked the federal government to do more to keep substandard lithium-ion batteries out of the United States and regulate chargers and electric bikes, after hundreds of battery fires and six fatalities in the city in 2022. “The FDNY is on the front lines of this fight against deadly fires involving batteries … and we are grateful for every tool available to help,” Kavanagh wrote. In late January, an e-bike battery sparked a fire at a day care center in Queens that injured nearly 20 children