https://www.entrepreneur.com/article/356607 > To one day create a $25,000 electric car, Tesla says it’s come up with a way to reduce the costs to building its batteries by more than 50 percent.  > At the company’s Battery Day event, Tesla CEO Elon Musk went over a whole series of changes the automaker plans on making that promise to streamline vehicle manufacturing and the battery cells themselves. The results can not only help Tesla save on costs, but also increase the range of its electric cars by as much as 54 percent.