If you have recently purchased an XFINITY Voice backup battery, please click on the appropriate link below to receive simple step-by-step instructions to install a new battery into your modem.
Check Your Modem Type
Click on your modem type below. Your modem type can be found on the front or bottom of the device.
If you need technical assistance with your battery, please contact us
from your mobile phone and we’ll take you step-by-step thorough the directions. (Note:
If your XFINITY Voice modem is equipped with two battery slots, only one battery is needed in order to receive up to eight hours of backup power.)
Recycle Your Used Battery
For detailed instructions on how to recycle your used battery please click here.