The function of the supercapacitor ups is often determined in the first few seconds to a few minutes after the power failure or the instantaneous collapse of the grid voltage. The battery needs to provide power during this period. The shortcomings of the battery itself need regular maintenance and short life, so that the UPS is running. It is necessary to always check the state of the battery. In a data protection backup system, the time required by the UPS is relatively short. The advantages of supercapacitors are particularly pronounced, with output currents rising to hundreds of amps or even thousands of amps with almost no delay, and fast charging, energy storage in a short period of time, and 50,000 cycle life Do not need care for ten years, so that UPS is truly maintenance-free.