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DETROIT — Cold temperatures can sap electric car batteries, temporarily reducing their range by more than 40% when interior heaters are used, a new study found.

Elon Musk’s praise for Daimler AG’s Mercedes-Benz Sprinter van triggered talks between the German manufacturer and Tesla Inc. over potential cooperation on an electric version.

Tesla Inc. is cutting the price of its Model 3 sedan for the second time this year, citing the end of a customer-referral program that was a more costly incentive than the company realized.

Tesla Inc.’s battery systems will be installed at more than 100 electric-vehicle U.S. charging stations this year.

Tesla Inc. agreed to acquire battery-technology company Maxwell Technologies Inc. for about $218 million in stock, as Elon Musk’s electric-car maker adds expertise in energy storage and power delivery.

A state Senate bill that would allow electric vehicle manufacturer Tesla and others to open stores and service centers in New Mexico was approved by the Public Affairs Committee on Jan. 31.

Tesla on Jan. 30 reported fourth-quarter results that included better-than-expected sales — but its earnings supported CEO Elon Musk’s assertion from earlier this month that the electric-car maker has a “very difficult” road ahead in 2019.

Tesla CEO Elon Musk revealed Chief Financial Officer Deepak Ahuja will retire a second time, reinforcing Tesla’s reputation for having an active revolving door of top executives.

Ford Motor Co.’s Jim Hackett and Tesla Inc.’s Elon Musk are rallying the troops with similar appeals to make more money.

Tesla Inc. received permission to start selling its Model 3 in Europe, clearing the final hurdle in bringing the electric-car maker’s top seller to the home turf of Audi, BMW and Mercedes-Benz.