Chapter 4
Periodic Maintenance
REF 1029568 Rev B
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
4-3
4.4 Battery
Maintenance
WARNING:
NOTE:
Recharge the battery if a
Low Battery
or
Battery Depleted
alarm occurs
during a pre-operational check.
NOTE:
If a
Batt. Charge Failure
alarm occurs or the battery does not begin to
charge after 1 hours, the battery may be fully depleted: see section 4.4.4.
NOTE:
Battery alarms sound near the end of the battery test. Gas delivery
continues until the battery is depleted.
Test the battery once per month. A fully charged battery is designed to support
ventilation for 45 minutes at default settings, and should be replaced if it
cannot.
4.4.1
Battery Operating Time
The length of time the ventilator can operate on internal battery power
depends primarily on ventilator CPAP/IPAP settings (Table 4-2).
WARNING:
Table 4-2: Battery Operating Time
CPAP or IPAP Setting
Approximate Battery
Operating Time
10 cmH
2
0
60 minutes
15 cmH
2
0
50 minutes
20 cmH
2
0
40 minutes
25 cmH
2
0
30 minutes
30 cmH
2
0
20 minutes
Operating times based on a fully-charged internal battery.