Battery Backup Information

Solve battery backup related issues with just a few clicks

Your Optical Network Terminal is installed with a separate Battery Backup Unit

(BBU). When a fully charged 12-volt battery is installed in the BBU, you will

have up to 8 hours of backup power for basic voice service, including calls to

911.

Internet and TV service will not be available during a power outage even

if a fully charged battery is installed.

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Battery Backup Units

battery

Battery beeping or needs to be replaced

Check Battery Status >

How to stop your battery unit beeping
An alarm will sound once a minute to alert you if the battery it is not fully charged or has been drained completely.
Your battery unit may look different from the one in the illustation below. The steps to mute battery beeping are the same for all battery backup units.

To stop the beeping

Locate your battery backup unit

Press and hold the Alarm silence button for 10 seconds

You should either hear a loud beep or the lights will flash on and off

If you did not get a beep or flashing lights, press and hold the Alarm silence button and the emergency use button together for 10 seconds.
Note: This will reboot your battery backup unit and clear the alarm

Note: The reboot will temporarily disrupt all your fios services and take between 3 to 5 minutes to complete.
Battery backup unit lights and buttons
Audible alarms

An alarm will sound once a minute to alert you if the battery it is not fully charged or has been drained completely. This will be repeated until you press the Alarm Silence button.

Buttons

Alarm Silence. Press to silence the audible alarm.
Battery Emergency Use. Press once to reboot the ONT and get up to 1 hour of battery life for emergency phone calls. Once pushed, all remaining battery life will be used.

Battery lights

Auxiliary Power Source

GREEN - auxiliary power available
RED - auxiliary power not available

Replace Battery

RED - battery needs to be replaced

Battery Power

RED - ONT is operating off battery power; no commercial power available
BLINKING RED - low battery power

System Status

GREEN - normal operation
BLINKING GREEN - system fault
Disconnecting and replacing the unit battery
1.After unplugging the battery backup unit from your wall outlet, open the battery compartment.

2. Remove the plug connector with the red and black cables by pinching and sliding it out of its location.

3. Gently disengage the retaining clips that hold the battery in place and remove the battery.

4. Disconnect the battery clips from the old battery and set the battery aside to properly dispose of. If you are not installing a new battery, proceed to Step 8. Save the red and black cable for future use.

5. Remove the plastic covers on the black and red terminals of your new battery. Connect the battery clips to the corresponding black (- negative) and red (+ positive) terminals on the new battery.

6. Slide the new battery into the battery compartment , securing it underneath the retaining clips.

7. Insert the plug connector back into position. If the battery is installed correctly, you'll hear a beep and the battery power and system status lights will be solid green.

8. Replace the battery cover and plug the BBU back into your wall outlet.

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Detailed instructions on accessing your battery
Select your battery unit

Alcatel BBU

CyberPower BBU
To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Place your hand in the inset between the panels and pull the door open from right to left

Your battery is located in the top part of the unit.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Your battery is located in the top part of the unit.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Your battery is located in the top part of the unit.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Press the button on the left side of the door. The door will swing open from left to right.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Use a screwdriver to remove the screw securing the access panel. Press the lever on the right side of the Battery Backup Unit (BBU) door. The door swings open from right to left.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Remove the screw that secures the access panel.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Press down on the release tab on the back of the ONT, then pull down the battery cover.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

Release the tabs on the top and bottom of the unit. The door swings to the left. Unstrap velcro strap to remove battery

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

The battery is in the top compartment. To open unit, remove the screw holding the door shut. The door swings from left to right.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

The battery is in the top compartment. To open unit, remove the screw holding the door shut. The door swings from right to left.

To access battery on your unit

Important: Before you begin unplug the Battery Backup Unit from the wall outlet.

The battery is in the top compartment. To open unit, depress tab on the top right and swing the door open from right to left.

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How do I dispose my old battery?
When replacing your battery, please make sure to dispose of your old battery properly. For more information about recycling, you can contact Call2Recycle at 1.877.RECYCLE (1.877.273.2925) or visit call2recycle.org to find a list of the drop-off locations closest to you. You may also visit http://www.ehso.com/ehshome/batteries.php or call the EPA at 202.272.0167 for instructions. Your local municipality may also have information about proper disposal of batteries.

Power and battery information is also available at verizon.com/about/terms-conditions/customer-notices in Spanish, Chinese, Korean and Vietnamese
Monitoring and maintaining the battery in your unit
You are responsible for monitoring and maintaining your backup battery. Battery age, usage and temperature will impact battery life and performance so reducing the amount of time the batteries remain stored and unused is recommended.

Only 12-volt 7.2Ah sealed lead acid batteries should be used in the BBU. Batteries should be purchased just prior to replacement as12-volt batteries may not maintain their shelf life when stored.
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