ResMed Astral User Manual page 4

• Explosion hazard—do not use in the vicinity of flammable
anaesthetics.
• Due to risk of fire or electric shock do not place the battery
near open fire or heaters. Do not expose the battery to
direct sunlight or heat (for example behind a car window).
Do not short-circuit the battery.
• Lithium-ion batteries have built-in safety protection
circuits, but can still be dangerous if they are not used
correctly. Damaged batteries can become inoperative or
catch fire.
• The External Battery is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or who lack experience and
knowledge, unless they have been given supervision or
instruction concerning use of the External Battery by a
person responsible for their safety.
• Children should be supervised to ensure that they do not
play with the External Battery.
A caution explains special measures for the safe and effective
use of the device.
CAUTION
• Do not drop the External Battery. Avoid hard physical
impact on the battery.
• Ensure the External Battery is kept dry. Do not expose to
water, rain or high moisture levels.
Indicators
Refer to illustration A.
The capacity and operation of the External Battery are indicated
on both the External Battery and the Astral device.
The LED indicators on the External Battery display its current
operating state.
Checking the charge on the battery
• Press .
• The Battery Level Check LED indicator illuminates for 5
seconds.
Indicator
On/Level Check button
DC on/off LED
Constant blue
Charging LEDs
Flashing green
Constant green
Level Check LEDs
Four green continuous
Three green continuous
2
External Battery status
Press to power on battery or
check battery level
Battery turned on
Charging
Fully charged
Greater than 90% (approximate)
65% to 90% (approximate)