ResMed Astral User Manual page 5

Indicator
Two green continuous
One green continuous
One green flashing
One amber flashing
Once the External Battery is connected to the Astral device, the
DC mains indicator on User Interface will illuminate.
Accessing battery information via the Astral User Interface
Information on system and battery charge levels can be
accessed in one of two ways.
1. Battery Indicator
The capacity of the External Battery will be added to the Run
Time indicator on the Information bar of the Astral interface
(this may take a couple of minutes). The total will be the sum
of the Astral internal battery plus either one or two external
batteries.
Note: Under normal operating conditions, the ventilator will
display total system:
• State of charge as a percentage when in ventilation standby
mode or connected to mains power.
• Estimated remaining run time while delivering therapy.
2. Battery Information Page
The battery information page can be accessed from the
device information page. This screen will display the current
charge level (0-100%) for any batteries currently detected by
the system, as well as the total system charge.
Refer to the Astral User Guide for further information.
Charging the External Battery
The External Battery is supplied partially charged.
Ensure the External Battery is fully charged before using it to
power the Astral device. The External Battery can be used and
recharged while connected to the Astral device (refer to the
Using and Recharging the External Battery section in this guide).
Charging takes less than 6 hours from 0% battery capacity to
greater than 95%.
WARNING
• Only use an Astral 90W AC power supply unit to charge
the External Battery.
• As the External Battery ages, the available capacity
decreases. When the remaining battery capacity is getting
low, do not rely on the External Battery as the primary
supply.
• The External Battery cannot be charged from DC mains.
Refer to illustration B.
1. Connect the AC power supply cable to the DC input port of
the External Battery.
External Battery status
40% to 65% (approximate)
10% to 40% (approximate)
Less than 10%
Less than 5%
English 3