VAL Avionics NAV 2000 User's Guide download pdf (Page 33)

SV-D700, SV-D1000 and SV-D1000T Operation

SkyView Pilot’s User Guide - Revision Q 3-11

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.

o The self-test routine has not discovered abnormal behavior. Backup battery self-

tests are performed automatically every time master power is removed on the

ground (after a flight, for example) while the 30-second “power lost” timer is

counting down.

Needs test:

Figure 7 - Backup Battery Test Needed

 SkyView has determined that the backup battery should be tested using the manually-

actuated Backup Battery Test. This can be because:

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VAL Avionics NAV 2000 User's Guide Page 33