Dynon Avionics SkyView Pilots Users Guide - Manual (Page 37)

SV-D700, SV-D1000 and SV-D1000T Operation
SkyView Pilot’s User Guide - Revision S 3-11
Backup Battery Charging and Testing
In the event of an electrical failure that causes SkyView to run on the SV-BAT-320, the SV-BAT-
320 supplies power to the SkyView display it is connected to, along with any connected SV-
ADAHRS-26X, SV-EMS-22X, SV-ARINC-429, and SV-GPS-250 modules. Because of higher power
requirements, the SV-BAT-320 does not power Autopilot servos, the SV-XPNDR-26X, SV-COM-
C25, SV-COM-X83, devices connected via a serial connection, or any other third party devices.
SkyView’s maximum display brightness is reduced very slightly when operating on backup
battery power to reduce power consumption.
When connected, the battery's charge level is automatically managed by the SkyView display it
is physically connected to. This ensures that SkyView has a fully charged backup battery in case
of emergency. Charging a completely discharged battery may take up to 4 hours. To conserve
your aircraft battery, the SV‐BAT‐320 is only charged when SkyView detects that your alternator
or generator is online. Specifically:

If SkyView system voltage is above 12.25V: SkyView runs on master power and charges
the SV-BAT-320.

If SkyView system voltage is above 10V, but below 12.25V: SkyView runs on master
power but does not charge the SV-BAT-320.

If SkyView system voltage is below 10V: SkyView runs on the SV-BAT-320. This
discharges the SV-BAT-320.
Reference the SkyView System Installation Guide for more details regarding current
consumption while charging a backup battery.
A battery is fully charged when it reaches 12.25 volts and should power a typical
SkyView system for at least 60 minutes. If SkyView has switched to the backup
battery due to a power loss in your aircraft, it is advised that you land as soon as
possible.
Backup Battery Status
SkyView performs an automatic 30 second self-test of the battery every time a SkyView is shut
down normally when master power is turned off after a flight. Additionally, a manually-
actuated discharge test should be performed annually when prompted by SkyView.
A battery status icon in the top bar and alert messages let you know when SkyView’s backup
battery is not operating nominally. These indications are as follows:
No battery icon displayed

No battery has been connected to this display or battery status is normal. If a battery is
connected, and no icon is displayed, all of the following are true:
o The Annual Backup Battery Test is not yet due.