Comcast Voice Installation And Replacement page 3

How to Replace the Batteries
Before proceeding:
•
To avoid disruption in service and maximize battery life, only replace the batteries when there is
no power outage. The Gateway must be running on AC power (not in battery backup mode)
during battery replacement.
•
Disconnect the Gateway and the Gateway's External Power Supply from the Voice Battery Casing.
•
All batteries must be new and the same type of battery from the same manufacturer. Do NOT mix
batteries. Do NOT use old and/or used batteries.
1. Loosen the screws on both corners of
the Voice Battery Casing.
2. Lift both "tabs" of the Voice Battery
Casing lid at the same time.
3. Open the Voice Battery Casing lid.
4. Remove all six batteries and dispose of
them properly.
5. Remove the plastic caps (if any) from
the spring terminals on the new
batteries.