CONFIDENTIAL and
PROPRIETARY
96-06917-00-01 rev C DCR 20-328 INOGEN ONE G4 TECHNICAL MANUAL
Page 13 of 19
3.2.5.4. Battery Time Remaining Clock
The Inogen One G4 continuously displays battery time remaining. It may be
necessary to inform the user that this displayed time is only an estimate, and the
actual time remaining may vary from this value.
To avoid running out of battery power unexpectedly, users should regularly monitor
the displayed battery time remaining and/or carry a back-up power supply (extra
charged battery or AC Power Supply).
3.2.5.5. Storage
Instruct patients to remove the battery from the Inogen One G4 when it is not in use
to avoid inadvertent discharge. Leaving a battery attached to an idle Inogen One
G4 for prolonged periods will result in battery damage that will severely shorten the
expected life of the battery.
DESIGN
NOTE
When the concentrator is off but the battery installed, the battery will
continue to provide a small amount of power to the concentrator’s
microprocessor. This power draw could empty a full battery over an
CAUTION
Leaving a Battery in the Inogen One G4 while the device is unused
will irreversibly damage the battery. After such storage, the battery
may not be able to recharge or its life cycle and/or capacity will be
greatly diminished. A full battery can be damaged in as little as 20
days if left in the concentrator while not plugged in.
Instruct users to avoid storing the Inogen One G4 battery in extreme temperatures,
below -4
o
F (-20
o
C) or above 158
o
F (70
o
C), for any amount of time. They should
avoid leaving batteries in automobiles, where these temperatures can be regularly
exceeded. Storage of the Inogen One G4 battery in a cool, dry location will help to
maximize the longevity of the battery.
3.3. Expected Service Requirements
The following table is provided as an estimate only and assumes nominal
environmental conditions for temperature, humidity, and air pollution. Any smoking
around the device will severely shorten its life expectancy. Please refer to product
warranty coverage terms.
Estimated Service Requirement Frequency
500 full cycles to 80% capacity
20,000 run hours with regular cleaning