9 | Page 01/03/2021 AUG_Eaton-3SMini_V04.4. Start UPSDo not connect load until the voltage has been appropriately setup (see 4.5)Press the ON/OFF button for three seconds. The battery level is first displayed for fiveseconds then the LED indicates the output voltage level (default 12V):Figure 2 Start UPSBattery levels:Slow blinking LEDFast blinking LEDFigure 3 Battery levels

Eaton 3SMini Advanced User's Manual