Answer | The SBV3202 includes a battery back-up feature for XFINITY Voice service subscribers.  The battery is optional and can be purchased at shop.surfboard.com. The battery back-up will allow the voice service to function in case of a power outage, but is not intended to replace the AC power for an extended period of time. The available talk time can last up to 5 hours or provide 8 hours in standby time. Â
The battery back-up status can be verified by accessing the SBV3202 Web Manager.  The battery back-up will perform an initial test charge when a battery is installed.  The Battery Operational Status will display BATTERY REPLACE when the installed battery back-up needs to be replaced. TELEMETRY NORMAL is displayed when the battery back-up is functioning.  This document describes the step to determine if the battery back-up needs replacement.​Determine if the Battery Back-up Needs Replacement
NOTE: If the SBV3202 is connected to a router, it is recommended to disconnect the router and connect the SBV3202 directly to a computer with an Ethernet cable.
- Launch a web browser, such as Internet Explorer, Firefox, or Safari. Enter http://192.168.100.1 into the address box, and press the Enter key.  The Status page will appear.
NOTE 1: A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager.  There is no risk in proceeding to the Web Manager.  For instructions to by-pass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.
NOTE 2: A login page may appear to access the Web Manager.  Enter the default username admin in the Username field and enter the default password password or customized password in the Password field.  For additional information, refer to article # 17705 – SBV3202: Web Manager Access.Â
 - Click the CM State link on the main menu.  The Registration Status page will appear.Â
 - On the Registration Status page, if BATTERY REPLACE appears in the Battery Operation Status field, replace the back-up battery. Refer to the table below for additional Status and States.  The expected status and state for a functioning battery back-up are:
- Battery Operation Status: TELEMETRY NORMAL
 - Battery Test State: Not Currently Under Battery Test
NOTE: It may take up to 12 hours for the battery to reach a full charge.
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| Battery Operation Status: | Battery Test State: | | MISSING BATTERY | Not Currently Under Battery Test | | TELEMETRY NORMAL | Under Test - Initial ChargeÂ
Not Currently Under Battery Test | | BATTERY REPLACE | Not Currently Under Battery Test |
NOTE: The Battery Part Number is the Product ID on the label of the battery back-up. For a complete list of supported battery back-up, refer to article # 17670 - SBV3202: Supported Battery Back-up Models.Â
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