Electric capacitors; DC/DC converters; power distribution or control machines and apparatus, namely, distribution boxes for electrical power, electrical power distribution units, electronic controllers used to reduce power consumption; telecommunication machines and apparatus, namely, telecommunication base stations, telecommunications transmitters, and telecommunications exchangers; electronic machines, apparatus and their parts, namely, electronic control systems for machines; photovoltaic modules; printed electronic circuits for apparatus and cards bearing integrated circuits; computer software for checking battery remaining amount; computer software for control of DC/DC converters; computer software for remotely checking batteries; dry cells; batteries and electrical cells; accumulators being batteries; rechargeable batteries; nickel-cadmium storage batteries; nickel-cadmium batteries; lithium secondary batteries; solar cells; chargers for electric batteries; electrical power supplies; uninterruptible electrical power supplies; accumulator jars; nickel electrodes for nickel metal-hydride batteries; metal-hydride electrodes for nickel metal-hydride batteries; fuel cell electrodes; measuring or testing machines and instruments, namely, battery testers, battery performance monitors; photovoltaic cells; wet cells; high tension batteries; emergency electric power-supply; portable electric power-supply; condensers being capacitors; AC-DC converters; nickel-hydrogen batteries; electrical adapters