Technical Specifications - ResMed Astral Guia Del Usuario

Problem/Possible cause
The External Battery charge
level is less than 5%.
External Battery green level LED is flashing
The battery charge level is
below 10%.
Charging terminates
Charging complete
The ambient temperature is
warmer than 30ºC.
Battery turns off and stops powering device
The ambient temperature is
warmer than 40ºC.
Battery charge level indicator is inaccurate
Ambient temperature is at
extreme condition (eg, –5ºC,
+40ºC).
Alarms Troubleshooting
Alarms and messages relating to the External Battery may occur
from time to time. All message information will be displayed on
the Astral User interface, and will be accompanied by an audible
signal.
Refer to the Astral User Guide for further information

Technical specifications

Battery technology
Capacity
UN classification
Power supply
Battery output
voltage
Battery output
current (rated)
Protection
Dimensions
(L x W x H)
Battery weight
Typical life cycle
Operating conditions
Charging:
Discharging:
Transport/storage
conditions
Operating/storage air
pressure
Recharge time
8
Solution
Recharge the External Battery as soon
as possible.
Recharge the External Battery as soon
as possible.
External Battery is ready to use.
Charge the External Battery where the
ambient temperature is cooler than
30ºC.
Move the External Battery to a location
where the ambient temperature is
cooler than 40ºC.
Move External Battery to a location
where ambient temperature is
between –5ºC and +40ºC and charge
via AC mains.
Lithium-ion
< 100 Wh (97 Wh)
UN3480 (lithium-ion batteries)
Input range 100–240V, 50–60Hz, 1.0-1.5A
Nominal for aircraft use 110V, 400Hz
(20V / 24V) ± 1V, 90W continuous
4.5 A / 3.75 A
Overcharge, overdischarge, excess current,
short circuit, high temperature
168 mm x 104 mm x 72 mm
1.2 kg typical
400 charge cycles at 23°C to 80% capacity
10°C to 35°C; 5–93% maximum humidity
0°C to 40°C; 5–93% maximum humidity
-20°C to +50°C; 5–93% relative humidity (non-
condensing)
700 hPa to 1100 hPa
< 6 hrs to full level (100%)