Panasonic KX-TDA150 Installation Manual page 41

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2.2.5 Backup Battery Connection
2.
Connect the Back-up Battery Cable to a set of 3 identical backup batteries.
ON
Battery Switch
OFF
Battery Connector
Back-up Battery Cable
Fuse
Red
Black
Backup Batteries (VRLA 12 V DC x 3)
Installation Manual
41

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