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6.6 EXTERNAL BATTERY CHARGER (BA-503, OPTIONAL ACCESSORY NOT INCLUDED)
The concentrator you have will recharge the battery any time the battery is installed and the device is connected to
an external AC or DC power source (except on an airplane).
The external battery charger will charge the standard (BA-500/BA-508) and extended (BA-516) battery. It is not
included as a standard accessory with the system but can be purchased separately. You can also use your device
to charge the battery when it is plugged into an AC or DC power supply.
To use the external battery charger, follow these steps:
Step Description
1
Connect the external battery charger
to power
1.1 Plug the external battery charger AC
power supply cord into an electrical
outlet.
1.2 Plug the external battery charger AC
power supply into the battery charger.
1.3 A green light on the bottom of the char-
ger will light up.
2
Attach the battery
2.1 Slide the charger onto the battery until it
audibly clicks.
2.2 The battery should lock onto the charger.
3
Check the status of the battery
3.1 When the battery is in the correct posi-
tion, a solid red light will indicate that the
battery is charging.
3.2 When the green light illuminates, the
battery is fully charged.
4
Check for errors
4.1 If the red light is flashing, unplug the unit
and complete steps 2 and 3 again.
4.2 If the flashing continues after these
steps, contact your equipment provider.