Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Circuit arrangements for DC mains or DC distribution networks with parallel operation of DC sources Circuit arrangements for AC mains or AC distribution networks for balancing the load in a network by storage of energy using batteries with converting means Arrangements or methods specially adapted for charging batteries of electrically operated smoking devices Installation of the electric equipment of suction cleaners; Controlling suction cleaners by electric means Blood pumps with implantable batteries Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for Arrangement or mounting of plural diverse prime-movers characterised by the electric energy storing means, e.g. batteries Electric propulsion system with power supplied within the vehicle Charging stations or on-board charging equipment for electrically-propelled vehicles Conjoint control of vehicle energy storage Electric circuits for optical signalling or lighting devices on cycles using batteries Arrangements of batteries specially adapted to cycles Rider propulsion of wheeled vehicles with batteries as additional source of power All-electric aircraft Power-actuated vehicle locks using batteries other than the vehicle main battery Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells Lighting devices with a built-in battery or accumulator Portable igniters with built-in battery Arrangements of electric power supplies in time-pieces Power supply means for electric digital data processing Portable transceivers with arrangements for mounting batteries or battery chargers Current supply arrangements for data switching networks Details of telephone stands