Battery Backup Unit

Your Optical Network Terminal (ONT) is installed with a separate Battery Backup Unit (BBU). When a fully charged 12-volt battery is installed in the BBU, you will have up to 8 hours of backup power for basic voice service, including calls to 911.


Note: Internet and TV service will not be available during a power outage even if a fully charged battery is installed. The BBU only provides backup power for voice service.


NOTE : If you use Verizon’s fiber optic voice service to connect your alarm or fire system to a central monitoring station, you have the option to receive email and/or text message notifications when (1) commercial power to your equipment is lost, and (2) when your backup power has exhausted. Notification of the exhaustion of backup power requires a Verizon-provided Battery Backup Unit or Power Reserve. Please log in to your account at to update your account profile with this information. You can also update your account profile by calling 800.Verizon (800.837.4966).

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