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UPS Status LED
The color of the UPS LED identifies the charge level, while the behavior of the LED identifies the charging state.
Charge Level
Charging State
SSD (Solid State Drive) LED
Off
External power not present
• Suspend
• Off
Green blinking slowly
External power present
(1/2 sec. on, 1 1/2 sec. off)
CPU temperature less than -20ºC, Heater warming CPU for 30 sec.
Green blinking slowly
External power not present
(1/2 sec. on, 1 1/2 sec. off)
CPU temperature less than -20ºC, Need to move unit to warmer environment
LED Color Status
Green Fully charged (>90%)
Amber • Less than fully charged, but more than 2 minutes runtime remaining
• Out of Safe Charging Temperature Range (page 3-3) Charging only occurs between
approximately -10°C and 35°C ambient temperature
• No UPS present
• Charging Timeout (page 3-3) Not fully charged after 4 or 8 hours depending on software
revision.
Red Low battery, less than 2 minutes runtime until shutdown
LED Behavior Status
Slow Blink
(1 sec. on, 3 sec. off)
Charging
Fast Blink
(1/2 sec. on, 1/2 sec. off)
UPS supplying power and discharging
On Neither charging or discharging
Off Unit is off or is in Suspend
LED Behavior Status
Flashing Green SSD read or write activity
Off No SSD read or write activity
LED Behavior System State