9 Apparatus, instruments, devices and systems for conducting, switching, transforming, accumulating, regulating, storing, supplying, managing and controlling electricity and electric power, for battery charging, battery testing and energy storage solutions, for leveling out electricity use with peak-shaving, and for grid stabilization with frequency-containment reserves, each of the foregoing comprised of different combinations of batteries, accumulators, battery chargers, battery testers, downloadable battery control and battery management system software, battery inverters, battery connectors, battery plugs and battery cables; electric power systems, namely, battery systems to provide backup power, comprised of batteries, accumulators, battery chargers, downloadable battery control and battery management system software, battery connectors and battery cables; electrical energy transmission, conversion, and storage control devices, namely, batteries, accumulators, battery chargers, battery testers, peak shavers, and computer system hardware for battery monitoring and management; electrical energy storage systems comprised of batteries, accumulators, battery chargers, battery control and management systems, downloadable battery control and management system software, battery inverters, battery connectors, battery plugs, battery cables, battery trays and battery containers; electrical energy voltage power boosters; electric voltage power boosters; electricity storage apparatus, namely, batteries and accumulators; and containerized energy storage, namely, batteries and accumulators