Panasonic KX-HTS824 Getting Started page 58

3.2.10 Backup Battery Connection
Note
•
The recommended maximum capacity is 28 Ah, to maintain effective battery charge.
•
The Back-up Battery Cable should not be exposed to direct sunlight. Keep the Back-up Battery Cable
and the backup battery away from heating appliances and fire. Place the backup battery in a
ventilated place.
•
For details about the backup battery, refer to the manual for the battery.
Backup Power Supply Duration
Examples
Battery Capacity
The duration may vary depending on the conditions.
*1
Connecting a Backup Battery
1.
Turn off the power switch.
2.
Connect the Back-up Battery Cable to the backup battery.
58 Getting Started
28Ah
Backup Power Supply Duration
B
A
C
E
A Fuse
B Backup Battery Cable
C Red
D Black
E Backup Battery (VRLA 12 V DC)
*1
9 h
D