1. High energy density: Lithium batteries have high energy density, that is, batteries can store more energy per unit mass. This means that the relatively small size and weight of lithium batteries can store more power. For UPS applications, this is important because it means that lithium batteries can provide longer backup times.

2. Long cycle life: The life of lithium batteries is usually longer than other types of batteries. An important parameter of lithium batteries is the number of charge cycles, that is, the number of complete cycles between charging and discharging under normal circumstances. A typical lithium battery can reach thousands of charge and discharge cycles, which is much higher than other types of batteries such as lead-acid batteries. This long life is important for UPS applications because it reduces the frequency of battery replacement and maintenance, reducing the total cost of ownership.

3. Fast charging capability: Lithium batteries can be charged very quickly. In contrast, lead-acid batteries typically require relatively long charging times. This is important for UPS applications because in the event of a power line outage, lithium batteries can be charged more quickly to provide emergency power support to critical equipment.

4. High power density: Lithium batteries have high power density, that is, batteries per unit volume can provide higher power output. This is very important for UPS applications, because the UPS needs to provide high power output in the moment of a power line interruption to ensure the normal operation of critical equipment. The high power density of lithium batteries ensures that the UPS can meet this requirement.

5. Low self-discharge rate: The self-discharge rate of lithium batteries is very low. This means that even when not used for a long time, lithium batteries are still able to maintain a high level of charge. For UPS applications, this is very important because the UPS needs to maintain sufficient charge levels at all times to provide power support at all times.

6. Reliability: Lithium batteries have excellent reliability and can work normally in a wide range of ambient temperatures. Compared with lead-acid batteries, lithium batteries do not suffer from the loss of pad sulfide, and there is no risk of corrosive liquid leakage. This makes lithium batteries a more robust and reliable UPS battery option.