Battery Installation (IMAGE) U.S. Army Research Laboratory Caption Army Electrical Engineer Wosen Wolde installs the 2.5 kilowatt-hour lithium battery system designed by CCDC Army Research Laboraory. Here, Wolde lowers the battery into a test vehicle using an engine hoist. The battery fills up one-third of the vehicle's internal volume. Credit CCDC Army Research Laboratory photo Usage Restrictions None License Licensed 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.