Backup battery specifications
• Type/rating: 12V/8Ah
• Size: not to exceed 6.05" length x 2.6" depth x 4.05" height, with F2 Faston connectors.
If you need further assistance, visit att.com/batterybackup.
If you have an Intelligent Network Interface Device (iNID)
The iNID
includes three components:
• The outside unit, typically located on the outside of your premises or in your garage where AT&T’s
network terminates.
• The inside unit, a home networking hub that provides wireless networking capability.
• A power supply unit (iPSU), that includes a backup battery and is usually located near where power comes
into your home (the iPSU must be located within 100 feet of the outside unit). AT&T provides an initial iPSU
battery when the first resident at the premises orders AT&T services. AT&T does not install a new battery at
a premises where a prior occupant had initiated AT&T service.
Backup Battery for iNID:
Your iNID backup battery unit will provide approximately four hours of backup power
when equipped with a new, fully charged battery. It takes less than 24 hours at normal indoor temperatures to
charge an initial backup battery to 90% capacity after AT&T Service is installed and/or after a replacement battery
is installed. Actual results will vary depending on, among other things, battery age, usage patterns, and
environmental conditions, including temperature extremes and fluctuations. For information about determining
if a battery backup should be replaced, how and where to purchase a replacement and how to install the
replacement backup battery, see below or go to att.com/batterybackup.
When to replace your iNID backup battery:
When the battery needs to be replaced, a chirp sounds intermittently unless you press the button to silence it for
12 hours. The chirp resumes after 12 hours if the battery is not replaced. A flashing red battery light indicates that
the battery needs to be replaced. Solid green indicates that the battery is installed and functioning properly. Off
indicates that no battery is installed.
Note:
The BATTERY indicator works properly only when the iPSU is connected to and communicates with the
outside unit.
How to replace the iNID backup battery:
Use a Phillips screwdriver to unfasten two screws (one on each side) securing the power supply battery cover.
Press down on the tension springs and pull to disconnect the battery cable connector from the battery cable.
Release the safety strap securing the battery. Insert the new battery gently into the housing. Connect the battery
cable connector to the battery cable. Secure the battery with the safety strap. Replace the housing cover and
fasten the cover with the two screws.
Do not connect the iNID backup battery
to any device other than the AT&T iNID or use it with any service
other than your AT&T Phone service.
Replacement Battery Model Number
EnerSys: FiberSafe12
Replacement batteries are available only at:
EnerSys—call 1.866.327.5755 or visit fibersafebattery.com.
Note:
Locations where batteries are available are subject to change.
Backup battery specifications
Type/Rating: FiberSafe 12 VDC 12 Ah Sealed Valve Regulated Lead Acid (VRLA) battery
If you need further assistance, visit att.com/batterybackup.
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Battery Backup Information