A battery is not included with the modem router, but you can purchase a NETGEAR modem router battery (sold separately) and install it. You can purchase NETGEAR batteries for your cable modem on Amazon, model number PB022. The battery can give you five hours of additional talk time and eight hours of idle time for voice service during a power outage. Battery access is on the bottom of the modem router.
To install the battery:
- Make sure that the modem router is unplugged.
- Open the battery compartment door.
- Insert the battery into the modem router.
Do not attempt to remove the battery’s plastic tab. The plastic tab allows you to easily remove the battery later if it must be replaced. - Close the battery compartment door.
Last Updated:07/07/2025
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Article ID: 000038533