The working principle of the uninterruptible UPS power system: all power is passed through the rectifier/charger's load and the inverter's two-layer conversion (ac-dc-ac), hence the name of the double conversion mode. The rectifier/charger floats the battery to keep it fully charged.

When an overrun or power failure occurs, the UPS starts the battery discharge working mode, that is, when the input voltage exceeds the allowable range of the UPS or the power supply is interrupted, the inverter and battery continue to input and continue to supply power to the load. The UPS power supply continues to run until the discharge time stops, or the normal operation mode is restored after the utility power returns to normal.

Then there is the recovery charging operation method, that is, the normal (charging) operation method of the mains recovery. The power supplied to the load is converted through two layers of rectifier/charger and inverter, and the rectifier/charger starts to recycle and charge the UPS battery.

1. The lithium-ion battery can reach 400Wh/L, which can provide reasonable structural planning conditions, planning space and possibilities. The use of lithium-ion batteries also allows planners to have more space and conditions to present planning ideas and styles.

2. The energy of lithium-ion batteries is three times that of nickel-cadmium batteries and nickel-hydrogen batteries, and twice that of lead-acid batteries. Lithium-ion power lithium batteries are higher than energy batteries.

Lithium-ion batteries do not contain toxic substances and are called green batteries. Although lithium-ion batteries are non-polluting, they still have to be considered in terms of resource conservation. In the recycling of lithium-ion power lithium batteries, recycling safety and recycling cost are factors to be considered.

4. The lithium-ion battery charging all-in-one machine has the characteristics of shock resistance, reliability, lightness and miniaturization. It is suitable for various vehicle scenarios and solves problems such as vibration, large temperature range, and poor grounding.

5. The overall planning of built-in lithium-ion battery charger, fast cabinet plug-in, and intelligent battery management system.

6. It can charge and discharge quickly under the high current of 2C. The lithium-ion battery can be fully charged in 40 minutes under a 1.5c special charger.

7. The energy ratio of lithium-ion batteries is higher, up to 150Wh/Kg. It is twice that of NiMH batteries and four times that of lead-acid batteries.

8. No recall effect: Li-ion batteries can be used at any time and do not need to be fully discharged before charging.

Conclusion: UPS power system plays an important role in power supply guarantee in all walks of life. With the rapid development of the UPS power supply market, the demand for UPS lithium-ion batteries is increasing.