NOVELTY - The system has a waterproof receptacle connector (5) electrically connected to a rechargeable battery (6). The pump system is positioned completely within a water reservoir (20) to be completely submergible within a supply of water such that a water-submersible battery-operated water pump (1) and the battery are electrically connected by connecting the receptacle connector and a waterproof plug connector (4) for operating the pump in supply of water to provide a flow rate of water (21) to vertically oriented discharge for pumping water upward and beyond a top surface of the supply of water.    USE - Decorative portable cordless submersible rechargeable battery-operated water pump system for use in a decorative water fountain industry for operating a water fountain by a cordless water-safe submersible rechargeable battery i.e. lithium ion battery.    ADVANTAGE - The system provides the water pump with the plug connector to be attached to the rechargeable battery via the receptacle connector so as to ensure water recirculation in decorative water fountains. The system is designed to rest at the bottom part of the water reservoir with minimum depth of 2 inches so as to recirculate water, thus producing water flow, thus providing safe, portable and independent operation without use of electrical cords or outlets. The brushless DC water pump provides optimal energy management for the lithium Ion battery so as to maintain a total energy-efficient system. The system achieves connecting power from the battery to the water pump through waterproof connection with the plug connector and the receptacle connector, thus facilitating conversion of corded water fountains to an independently operational cordless unit.    DETAILED DESCRIPTION - The pump is formed as a centrifugal-type pump and a brushless DC water pump.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a decorative portable cordless submersible rechargeable battery-operated water pump system designed to be used submerged in water.    Water-submersible battery-operated water pump (1)    Waterproof plug connector (4)    Waterproof receptacle connector (5)    Rechargeable battery (6)    Water reservoir (20)    Water (21)