Backup Battery Charging - AT&T SynJ SB67148 User Manual

Getting started

Backup battery charging

When the deskset loses power with the backup battery installed, the screen
indicates the battery status (see table below) and displays Check AC power.
When the backup battery is in low battery mode, the screen displays
Low battery. The backup battery is fully charged after 16 hours of
continuous charging. See the table on page 82 for battery operating times.
The following table summarizes the battery charge indicators and actions
to take.
Battery indicators
The screen shows
Low battery and
flashes.
The screen
shows .
Battery status
Battery has enough
charge to be used for a
short time.
Battery is fully charged.
7
Action
Charge without
interruption at least one
hour.
Keep the backup
battery in the battery
compartment to
recharge.