User guide

Install the Back-up Battery
Remove the lid from the battery compartment.
Insert the battery connection cable into the battery port.
Place the back-up battery in the battery slot and replace the
battery cover.
During a power failure, the back-up battery enables voice
calling using a standard corded phone that does not require
external supplied power.
Notes:
• The back-up battery is intended for backup purposes only
and may take approximately five (5) hours to fully charge.
• Charge time may be impacted by environmental factors
and the back-up battery will stop charging when the ambient
temperature is outside of the temperature range allowed for
charging (32 °F - 131 °F).
• Remove the back-up battery if the device will be disconnected
from AC power for 15 days or more to avoid possible damage.
5Getting Started