Problem/Possible cause
Battery turns off and stops powering device
When the battery is in the
RPS II carry bag, the ambient
temperature is warmer than 35°C.
Battery charge level indicator is inaccurate
Ambient temperature is at
extreme condition (eg, –5°C,
+40°C).
Technical specifications
Battery technology
Capacity
UN classification
AC power supply
DC converter
Battery output voltage
Power supply unit output
current (rated)
Battery output current (rated)
Standby current
Protection
Dimensions (L x W x H)
Battery weight
System weight
Minimum life cycle
Operating conditions
Charging
Discharging
Transport/storage conditions
Operating/storage air pressure
Aircraft use
Recharge time
Electromagnetic compatibility
6
Solution
Remove the battery from the RPS II carry bag or
power the device where the ambient temperature is
cooler than 35°C.
Recharge the battery as soon as possible to ensure
adequate capacity.
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
Input range 12V / 24V, 13A / 6.5A
(24V / 26V) ± 0.5V, 90W continuous
3.75 A
3.75 A / 3.46 A
< 100 μA
Overcharge, overdischarge, excess current, short circuit,
high temperature
230 mm x 126 mm x 26 mm
0.9 kg
2.3 kg
≥ 500 cycles at 23°C to 60% capacity
5°C to 40°C; 5–85% maximum humidity
-5°C to 40°C; 5–85% maximum humidity
-20°C to +45°C; 5–85% maximum humidity
600 hPa to 1100 hPa
Product meets the Federal Aviation Administration (FAA)
requirements (RTCA/D0-160, section 21, category M) for
all phases of air travel.
< 4 hrs at full level
Product complies with all applicable electromagnetic
compatibility requirements (EMC) according to IEC60601-
1-2, for residential, commercial, and light industry
environments. Information regarding the electromagnetic
emissions and immunity of these ResMed devices can
be found on www.resmed.com/downloads/devices.