The 220V input of the mains power is processed by the reectifier power module, and the output is 48V. Under normal power grid corInditions, the rectifier power module provides the power requiredby the system while charging the battery system; In the event of a power autage in the power grid, the battery system provides electrical energy to ensure the normal operation of the DC power system anhd achieve uninterrupted power supply.

The power supply has a secondary power down function. When the battery voltage is too low, the power supply is cut off to protect the battery life.