Installation; Installing The Battery; Connecting The Handset - Panasonic KX-TGA420B Operating Instructions Manual

Installation
Installing the Battery
If you want to use the station unit in a remote location from the power
outlet, a rechargeable Nickel-Metal Hydride (Ni-MH) battery will power the
unit (Battery power mode). The battery will also work as emergency power
during a power failure.
The battery is charged in the battery compartment while the AC adaptor is
connected (p. 9). It takes about
8 hours
to charge fully. For details about
battery charge and battery information, see pages 10 and 11.
2 Close the battery cover: Slide the battery cover, and push it forward as
shown until it locks into place.
• Use only a Panasonic Handset for the KX-TGA420B.