Battery Backup Information

If your home phone service is provided through our state-of-the-art fiber optic network it requires electric power to operate. Depending on your Verizon equipment, you have one of two backup battery options available for your Verizon voice service - either the PowerReserve or the Battery Backup Unit. With a fully charged battery in place, you will have up to 24 hours of backup battery power for emergency voice services, including Emergency 911 dialing, dependng upon your specific device.

If you have a backup battery, and do not have voice service through Verizon, or if you do not need your voice service during a power outage, you can disconnect the backup battery.

Your voice service requires electric power to operate. See additional details below.

  • Electric Power Requirements
    • Since your voice service requires electric power to operate, during a power outage you will not be able to make or receive calls without a backup power source or an alternative like a cell phone.

    • The PowerReserve or Battery Backup Unit are meant specifically for your Verizon Voice service and will not power cordless phones, other devices, including those that assist customers with disabilities or home security systems, or your Internet or TV service.

    • During a power outage, please use your voice service only for emergency calls to preserve your battery power. Verizon will not provide credits and is not liable for interruptions of service due to power outages.

    • There may be other commercially available sources of backup power, such as a generator or uninterruptible power source that may provide backup power for your voice service. Please consult the manufacturers of those types of devices for more information about their functions and capabilities.


Please select one of the options below for support information.

Don’t have a backup power device?
Click here to learn more about backup power options available to you.

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Battery Backup Information
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    Get information about the battery backup at
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    Troubleshoot problems with the battery backup unit using the Verizon Troubleshooter
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    During a power outage you will not be able to make or receive calls without a backup power, only disconnect if you do not need this functionality.
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