Works for Cox Xfinity Panoramic xFi Voice Gateway.
You must have phone service by your internet service provider in order to use the Battery Back-Up Option.
This Battery Pack doesn't support the Internet part of the Modem.
Battery Pack provides 5 Hours of Talk Time.
An analog phone must be connected directly to the unit to have E911 service in case of electrical outage.
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This Battery Pack is Suitable for New Docsis 3.1 VoIP Gateways by Arris Technicolor Hitron and other similar manufacturers. Check for Compatibility prior to purchase as not all models are supported.
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First Listed on Newegg
December 09, 2025
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Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.