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Your Optimum home phone service is power dependent. A battery backup provides uninterrupted home phone service during a power outage.

Is a battery backup recommended?
Yes, it is highly recommended. If there is a power outage, you need a backup battery or alternate backup source to make any phone calls, including those to 911 emergency services, unless both your modem and phone have their own power supply.

For instance, an electrically powered cordless phone will not work during a power outage, even with battery backup for the modem. Additionally, if there are any disruptions to the Optimum network or facilities, Optimum Phone service will not work.

Where do I get a battery backup?
You can purchase a battery backup for certified Optimum Arris modems at shop.surfboard.com/optimum-store. Arris provides a 1-year warranty.

For additional questions regarding shipment, warranty, or requests for replacement, please contact Arris at surfboard.com/support/resources

What happens when I have a battery backup, and the power goes out?
When the power goes out, the modem will automatically switch to the battery backup for power. When power returns, the modem will switch back to electrical power, and the battery backup will recharge.

How long does my battery backup maintain service during a power outage?
An Arris modem with a fully charged battery backup will provide up to 8 hours of standby time and 6 hours of talk time on a corded phone. Standby power is greatly diminished if your phone service is used continuously during the power outage.

How frequently should I check my battery backup?
While the estimated service life of the battery is 6 to 10 years, it is important that you periodically check it to ensure you will have service if there is a power outage.

You can do this by looking at the LED indicator on the battery unit. If the LED indicator blinks, the battery has hit a low life threshold, and replacement is necessary (it will still work for a limited time). If the LED indicator is out, the battery is either not present or dead.

Posted: August 1, 2022