Online UPS is an electrical appliance that is used to provide power to the circuits and machines in the absence of mains power supply. UPS is the acronym for the uninterrupted power supply as it aids in the continuum of the power irrespective of the on or off state of the mains. It contains a powerful battery that is rechargeable. The battery stores the electrical power in terms of voltage gradient and delivers the same in need. Owing to the optimum quality of the assembling parts and equipment, this Online UPS is sure to function for the long time duration.