battery energy storage systems comprised of electrical storage batteries integrated into a transportable enclosure together with electrical integrated control systems for controlling the charging and discharging of the electrical storage batteries for commercial, industrial, and utility use, sold as a unit; energy storage systems comprised of batteries integrated into an enclosure together with electronic components for charging and discharging the batteries, sold as a unit; electronic apparatus for testing the performance and operability of energy storage systems and localized electrical grids; transportable charging stations for electric vehicles; electronic apparatus for testing the performance and operability of charging stations for electric vehicles; Charging stations for electric vehicles; electric vehicle charging station testers; Computer-controlled apparatus for testing and measuring energy storage systems and localized electrical grids