Indicates the UPS is charging battery.   
Battery information 
 
Indicates the Battery capacity by 0-25%, 26-50%, 51-75%, and 76-100%. 
Indicates the battery is fault. 
 
Indicates low battery level and low battery voltage. 
3-3. Audible Alarm   
Beeping once every second 
Inverter soft start failure
Inverter output short circuited
3-4. Single UPS Operation 
1. Turn on the UPS with utility power supply (in AC mode)   
1)    After power supply is connected correctly, set the breaker of the battery pack at “ON” position (the step 
only available for long-run model). Then set the input breaker at “ON” position. At this time the fan is