What is an Online UPS?

What is an Online UPS?

An Online UPS (Uninterruptible Power Supply) is a top-tier power protection device that achieves zero-interruption power switching. It delivers clean, stable sine-wave AC power to connected equipment. The core of an Online UPS lies in its dual conversion technology: when mains power fails, the rectifier stops operating, and the battery instantly powers the inverter with zero switching time. Connected equipment won’t detect any power abnormality, making Online UPS the ideal choice for applications with strict power requirements, such as data centers and medical equipment.

Outstanding Advantages of Online UPS

Online UPS systems effectively handle various power issues, including blackouts, power rationing, voltage sags, power surges, and noise interference. Compared to standby UPS systems, Online UPS offers superior output voltage transient performance. When load increases or decreases, its output voltage fluctuation is only about 1%.

Application of Lithium Batteries in UPS

These UPS units now utilize lithium iron phosphate (LiFePO4) batteries as the energy storage system. Compared to traditional lead-acid batteries, their size is reduced by about 30%, and they support over five times more charge-discharge cycles.

Additionally, these UPS systems are equipped with an intelligent battery management system that supports high-current charging. This system is optimized for the characteristics of lithium iron phosphate batteries, ensuring safe and efficient battery operation.