Power Supply Battery is useful in the storage of electric power in the form of chemical energy. Whenevr required, the energy is again discharged as electric power for DC consumers such as starter motors and lighting. The battery can function as a stopgap between backup power and main power source. It allows for a robust battery backup. The battery can be used for the banks, hospitals and other critical functions. Power Supply Battery has been designed well to do away with the problem of responding instantly. It is also suited for providing an ample boost of power to the system.