Boeing fixes Dreamliner battery

Boeing began installing reinforced lithium-ion batteries on five grounded 787 jets in Japan yesterday, starting a process that should make the first commercial Dreamliners ready to fly again in about a week. Boeing’s Dreamliners have been grounded since regulators in the US and elsewhere ordered all 50 planes out of the skies in mid-January after batteries on two of them overheated. Regulators approved a new battery design on Friday.