The standby time of UPS is determined by its energy storage device. At present, UPS generally uses fully sealed and maintenance-free lead-acid batteries as energy storage devices. The battery capacity is reflected by the index of "AH", which indicates the discharge time according to the specified current. The battery with the same voltage has large ampere-hours and large capacity; A battery with the same ampere hour has a large capacity when the voltage is high. Generally, the battery capacity is based on voltage and ampere hour * * *, such as 12V/7AH, 12V/24AH, 12V/65AH,12v/kloc-0.
Generally, standby UPS has built-in 4AH or 7AH batteries, and the standby time is fixed. Online and online interactive UPS has standard models with built-in 7AH batteries and long-term models with large-capacity batteries. Users can determine the battery capacity according to the required standby time.
Calculation method of UPS power backup delay time: (battery capacity x battery working voltage)/equipment power = extendable time (hours).