! LED Name !! Usage
|-
! | BAT|-! LOW| | LED red on indicates battery low (≤3.0Vdc) or|-! blue power button pressed|-! (Jumper for ASD inserted)|-! 5VOUT |-! OUT| LED green on flashing indicates 5V power out|-! and UPS powered by battery|-! ACFAIL |-! FAIL| LED red on indicates AC power loss or PSU|-! failure or PSU disconnected|-! PWR| |LED blue indicates|-! Stays on - Power on|-! Blinks rapidly - system rebooting|-! Blinks slowly - Shutting down
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6. Fuel gauge - LED Indicator