Reused car batteries rev up electric grid (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL researchers have developed a way to manage car batteries of different types and sizes as energy storage for the power grid. Credit Andy Sproles/ORNL, U.S. Dept. of Energy Usage Restrictions n/a License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.