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SkyView
HDX System
General Maintenance Manual, Revision F
31)
32) This test discharges the Backup Battery. Recharging the Backup Battery after the
test is recommended by flying for approximately four hours or by powering on
SkyView HDX Display with ground power greater than 12.25 volts for approximately
four hours.
9.5
EFIS-D10A Backup Battery Test
The internal backup battery must be tested once every 12 months to ensure it is operational and
meets the nominal 45-minute expected backup operation period. The backup battery must be
fully charged prior to beginning the test. To ensure the battery is fully charged, do the following:
•
While EFIS-D10A draws power from airplane power, allow internal battery in EFIS-D10A
to charge above 16.0 volts.
•
To view the voltmeter, enter the menu system by pressing any button beneath an EFIS
page (except far left or far right hotkeys) and go to EFIS > INFO > LEFT > VMETER.
•
The battery may charge as high as 16.8 volts, but it is only necessary to charge it to 16.0
volts for the test.
To test back up battery, complete the follow steps:
1. Remove all sources of external power from EFIS-D10A. When power is lost, a red bar will
appear with a 30-second countdown timer. Press STAY ON to continue the EFIS-D10A
operating off its internal backup battery.
2. Ensure EFIS-D10A screen is at its full brightness level. To do this, enter the menu system
by pressing any button beneath an EFIS page (except the far left or far right hotkeys) and
press MORE > DIM and fully increase the brightness level.
3. Let the unit remain on.
4. After 45 minutes, if the EFIS-D10A has not turned off and does not display the INTERNAL
BATTERY LOW warning, the battery passes the capacity test.
5. If the battery does not pass the capacity test, it will be necessary to replace the battery
6. Re-apply aircraft power to EFIS-D10A and charge battery until voltage is above 15.0 volts
before returning to service.
