Mooney M20M, Pilot Operating Handbook, Page: 269 / 377

GI 275 Part 23 AML STC
190-02246-12 Rev. 4
Airplane Flight Manual Supplement Page 29 of 70
FAA APPROVED
NOTE
For protection, backup battery operation is inhibited if the battery‘s
temperature drops below -20° C or exceeds 80° C. Battery
parameters such as the battery temperature can be viewed in the
System Menu.
CAUTION
To conserve power and to preserve the display of primary flight
data and direct-to navigation capabilities with the optional VGPS
receiver, GI 275 backup battery operation internally load-sheds
interfaces, which will disable the normal interface with certified
navigators or other hazard awareness systems. Depending on how
these were installed and configured to the GI 275, some
information from these configured systems will not be available
when the GI 275 is operating on its backup battery.
3.1.7 Display Backup Malfunction
Display backup malfunction is indicated by the unit locking on the ADI page.
All other configured pages will not be accessible on the standby ADI or HSI.
3.1.8 Backup Battery Malfunction
A malfunction of the backup battery is indicated by the following indication in
the upper left corner of the screen with a system advisory message:
1. Seek VFR conditions or land as soon as practicable.
3.1.9 EIS Failure
EIS failure is indicated by the loss of displayed information on the EIS,
including a blank, frozen, or unresponsive display of EIS parameters.
1. Position engine controls to ensure operation within engine limitations.