Call for the Best Cable, Phone and Internet Deals: 855-349-9328
Call For Best Deals: 855-349-9328

Table of Contents

What is a Backup Battery for an Xfinity Voice Phone Modem?

A backup battery for an Xfinity Voice phone modem is a device that can provide power to your phone services and alarm system during a power outage. It can be referred to as an energy source that keeps your devices all charged up and working when your regular supply of electric power is interrupted.

The best part about having a backup battery for your phone modem is that it never lets any power anomalies disrupt your connectivity. With a backup battery, you can remain connected with your loved ones around the clock, even during power failures or outages. So, you can enjoy using a temporary source of power for nonstop communication, until your electricity supply is restored.

How Does a Backup Battery Work for an Xfinity Modem?

The Xfinity Voice phone modem is connected to a backup battery that keeps charging while there is utility power supply. So, during the power outage, your backup battery supplies power to your modem which allows you to continue receiving your calls and use the alarm system normally for a certain period – for twenty-four hours, to be exact.

However, it’s worth noting that only your primary phone number will work during a power outage, even if you have a backup battery installed for your Xfinity Phone modem.

Until this point, we are pretty sure that you’ve gotten good know-how of what a phone modem battery case for Xfinity Voice service is. So, now it’s time for us to move on to the main aspect of this blog – how to buy one. Continue reading to know all about it.

How to Buy a Phone Modem Battery Case for Your Xfinity Voice Service

Below are a few simple ways for new and existing customers to buy an Xfinity Voice Backup Battery Case. Let’s take a look!

New Xfinity Voice Customers

Although Comcast offers a wide range of modems to its customers, the good news is that the Xfinity Voice Backup Battery case is compatible with all of them. It is currently priced at $65 only, excluding shipping and tax.

Just in case you are a new customer, you can purchase Xfinity Voice Backup Battery Case while placing your order for Xfinity Voice Service. Get your service from Xfinity Phone by calling 844-207-8721 to place your order now!

Note: Please remember that the Xfinity Voice Backup Battery Case needs six 6-volt lantern batteries to function properly, which are not included in the package. However, you can purchase them easily from any reliable electronics retailer.

Existing Xfinity Voice Customers

If you have already subscribed to Xfinity Home Phone service and want to purchase Xfinity Voice Backup Battery Case, simply head over to www.xfinity.com or call  1-888-972-1261. Xfinity will deliver your battery case within 5-7 business days. However, taxes and shipping charges will apply.

Note: Please remember that the Xfinity Voice Backup Battery Case needs “six” 6-volt lantern batteries to function properly, which are not included in the package. However, you can purchase them easily from any reliable electronics retailer.

Comcast Business Voice Customers

If you are a Comcast Business Voice Customer, then you might want to check out the Comcast Voice battery replacement program to place your order for the modem battery case. Simply call 1-800-391-3000 and connect with Xfinity’s customer services agent today.

Click here to learn how to install the battery in your Comcast Wireless Gateway or Business Voice Modem.

Install a Backup Power Solution for Your Xfinity Voice Service

If you’ve recently purchased an Xfinity Voice backup battery, find your modem or Wireless Gateway below and follow the simple, step-by-step instructions to install a new battery.

Installation Instructions by Device

First things first: you need to look for the modem model on the front or bottom of your device. Once you are done with that, simply go through the list given below and click on your model number to receive step-by-step instructions for the battery installation.

Need Technical Assistance?

If you are having trouble installing your battery, simply dial 1-800-934-6489 and connect with Xfinity’s technical support. The trained staff will provide you with a “how-to” guide and make the installation process easier for you.

Note: You need only “one” battery to get up to twenty-four hours of backup power (just in case your Xfinity Voice modem has 2 battery slots).

Battery Monitoring

The Xfinity Voice Backup Battery case offers a wide range of self-monitoring features to improve your voice experience even more. Some of them include audible alerts and indicator lights to help you determine when to replace your batteries.

As we mentioned above, Comcast does not provide 6V lantern batteries to ensure your modem’s battery backup. Therefore, you will have to purchase them from a reliable retailer. Also, remember that you cannot replace or install your batteries during a power outage.

Here’s what different self-monitoring lights indicate on Xfinity’s Voice Backup Battery Case:

Event Visual Audio
Normal Operation Steady Blue LED No alert
Low Voltage Threshold Met Solid Red LED or no LED 4 beeps
Commercial Power Lost No LED 3 beeps
Activation Blinking Blue LED indicates “Bootup”
Blinking Green LED indicates “Pairing”
Steady Blue LED indicates “Ready”
No alert
No alert
1 beep
Commercial Power Restored
(After Power Failure)
Steady Blue LED 1 beeps

 

Note: Xfinity Voice service relies on electrical power to function properly. Therefore, your emergency calls to 911, or any other important contacts, can be interrupted if you do not install a backup power source. It’s also worth noting that your calls to E911/911 might not be processed if there’s network instability, signal blockage or equipment failure, etc.

In case of any technical issues like these, call 1-800-934-6489 and connect with Xfinity’s technical support.

The Bottom-Line

We hope you enjoyed reading our guide to buying Xfinity Phone Modem Battery Case and also found it helpful. Please let us know if you would like to learn about any other aspects related to Xfinity’s phone modem battery case – we would be happy to assist!

For more information, call Xfinity customer service at 844-207-8721.