POWER SUPPLY APPARATUS FOR SUPPLYING POWER WITH A BATTERY UNIT INTEGRALLY COMBINED WITH A SUPERCAPACITOR

A power supply apparatus is proposed, which uses a battery unit integrally combined with a supercapacitor for supplying power to a load of the type that requires an initial instant large current for quick startup, such as the engine startup motor of an automobile. In operation, the invention uses both the battery unit and the supercapacitor to supply power to the load, characterized in that the supplied power contains an initial instant large current for quick startup of the load. When recharging is required, an external recharging power unit can be used to recharge both the battery unit and the supercapacitor. In the application on automobiles, the invention can replace traditional lead-acid batteries for supplying power with an initial instant large current to the engine startup motor of the automobile, thereby allowing the startup motor to produce a more powerful and rapid accelerating force for quick engine startup.