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Telephone Equipment Battery FAQ
Last Updated: Thu, 21 Jul 2016 > Related Articles
Learn more about replacing the backup battery in your Cox Digital Telephone eMTA.
Your Cox Digital Telephone service utilizes telephone equipment that is connected to your home’s power. During a power outage, you will not have access to phone service or e911 unless a battery is installed in each piece of telephone equipment at your home. Backup batteries can provide up to eight hours of standby service or up to four hours of talk time using a corded telephone that does not require power and is directly connected to the telephone modem's jack. Cox recommends checking the battery status of your telephone equipment on a regular basis.
Batteries are available for purchase from Cox at any of our retail locations or when you order Cox Digital Telephone service.
You may have the option of installing the battery(ies) yourself or having a Cox technician perform installation of the battery(ies).
If you choose to have the battery(ies) installed by a Cox Technician after installation of your Cox Digital Telephone service there will be an additional charge associated with the installation.
Refer to Important Information About The Use of Your Cox Digital Telephone Service During a Power Outage for more information.
Below are general FAQs on the telephone modem battery.
As of November 1, 2013, new customers no longer receive batteries with the Digital Telephone service. The option to purchase batteries for Digital Telephone equipment has been available to customers since November 1, 2013.
You have the option to purchase your battery service by contacting us at 855-324-7700 or visit any Cox Solutions Store.
- For all Cox Digital Telephone services ordered on November 1, 2013 or after, there is a charge for the battery backup. Please contact Cox at 855-324-7700 for current pricing.
- For customer orders placed prior to November 1, 2013, the battery is free.
- For qualifying Lifeline customers, your Telephone Modem battery will automatically be shipped to you at no cost or credited after Lifeline eligibility has been approved. Backup batteries for other Cox telephone equipment may require installation by a Cox technician at no additional charge.
Note: Lifeline is a government program designed to make telephone service affordable for low-income families.
Once you have requested your battery, you can expect to receive your battery within two to three business days. Backup batteries for other Cox telephone equipment may not be available for shipment.
Installation instructions can be found on Install Telephone Modem Battery. You do have the option of having a Field Tech install the batteries installed professionally at the time of install. If you choose to have a Field Tech install the batteries after install, there will be an additional charge associated with the installation.
Your telephone modem has a battery indicator light on the front of the device, which displays the status of the battery.
The following table provides the status of your telephone modem battery.
|Telephone Modem Model||Battery Light||Status||Additional Information|
|Solid Green||No problem|
|Flashing Green||Battery is bad|
|Off||Battery is missing|
|Solid Green||Battery is charged|
|Blinking||Battery charge is low|
|Off||Battery is missing;|
|Solid Amber||No problem|
|Flashing or Blinking||Battery not fully charged or power is off|
|Off||Battery is discharged or not properly installed|
|Arris TG2472 Premium WiFi Modem||On||None. Battery is good or low.||Troubleshoot Arris TG2472 Premium WiFi Modem|
|Flashing||Battery is bad|
|Off||Battery is not installed|
Other Cox Telephone Equipment
Customers whose Cox Digital Telephone services are provided by fiber to their home may also have & Cox-installed telephone equipment in addition to a telephone modem, and will need to purchase batteries for both. If Cox Digital Telephone service is being professionally installed by a Cox Technician and a Telephone Modem battery has been purchased, the additional equipment battery will be installed. The Cox technician will ensure that the battery is functioning. Cox recommends checking the battery status of your telephone equipment on a regular basis. The Cox telephone equipment and backup battery unit are housed in a small utility cabinet on the outside of your home. After opening the utility cabinet, this may require a screwdriver, locate the backup battery unit, which is pictured below.
- Lights on the front of the backup battery unit indicate telephone equipment powering status.
- If the red light is flashing, please contact your Cox Customer Care representative to schedule a service appointment for battery replacement.
You have the option of having a Cox technician install the battery. If you choose to have the battery installed by a Field Tech after installation of your Cox Digital Telephone service there will be an additional charge associated with the installation.
If you order over the telephone, you will receive a preprinted FedEx label included with your new battery to use when returning the old battery, if you have one. You can also recycle your old battery at any Cox Retail Store.
The warranty period is one year.