Tesla remotely expanded car batteries near Irma’s path, and questions linger

Tesla owners who were in Hurricane Irma’s path in the Southeast recently got an unexpected boost to help them, after the carmaker remotely upgraded vehicle batteries to their highest capacity.
The boost gave customers’ cars an extra 30 to 40 miles, but it’s also temporary: The batteries will lose their extra juice this weekend.
The move came at the request of a customer who was worried about traffic and the range between charging stations during a massive evacuation that saw mi