9 Scientific apparatus and instruments for measuring and signalling the power of batteries; batteries; electric batteries; digital batteries; batteries for lighting; batteries and battery chargers, namely, batteries, battery cables and battery chargers for use with photographic equipment; interchangeable battery packs; batteries and AC power supplies for use with video equipment; batteries for use with portable devices and apparatus; battery boxes; electric conductors and cables; current rectifiers; sodium batteries; sodium ion batteries; salt batteries; sea salt batteries; rechargeable batteries; rechargeable battery packs, power units and power supply systems; portable power supplies being rechargeable batteries; power packs being transformers; portable power chargers; uninterruptible power supply apparatus being batteries; portable power supplies being rechargeable batteries and power packs being transformers for use in connection with mobile broadcast units and mobile motion picture production units; charging appliances for rechargeable battery packs, power units and power supply systems; broadcasting equipment, namely, equipment for the capture of video and audio for subsequent broadcast, accessories for mounting batteries to video and audio equipment and recording devices, mobile broadcast units and mobile motion picture production units, all for transmitting and receiving broadcast signals.