NBN™ Battery Replacement

NBN Battery Replacement for NBN™

NBN Battery Replacement for NBN™ for Sale

EnerSys is the NBN battery replacement supplier for NBN™ Power Supply Units. If you chose to have a Power Supply Unit with Battery Backup included with your NBN™ installation, you will have an existing EnerSys NP7-12TFR battery.

The NBN battery replacement is cost-effective. EnerSys offers NBN batteries for sale at a great price whilst providing a high quality, NBN approved product thus assuring a long service life of the replacement battery.

You may hear your NBN battery beeping every 15 minutes, or your Power Supply Unit will show a red light next to the ‘REPLACE BATTERY’ symbol. This indicates that your battery has lost its charge and you will need to replace it with a new one. If this increases to 4 beeps per minute, less than 50% of the NBN battery life is remaining.

With our replacement service, we offer a 12-months warranty and shipping all across Australia. That way, you can feel secure in your replacement and get the most from our low NBN battery cost.

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Backup Battery for NBN™ Power Supply Units

Backup Battery for NBN™ Power Supply Units

Replacement battery for the NBN™ Power Supply Unit

$39.90+ GST Buy Now

Delivery Australia-Wide

Beeping NBN™ Wall Panel?

Beeping NBN™ Wall Panel?

If your nbn™ Power Supply Unit with Battery Backup is showing a red light next to the ‘REPLACE BATTERY’ symbol, or you hear an alarm (beeping once every 15 minutes) this either means that you need to replace your battery with a new one or that the battery has been removed.

How to replace your battery


Why should I replace my backup battery?

It is very important to replace your backup battery. In the event of a power outage, your corded landline phone service over the NBN™ network will not work if the battery has lost charge or has been removed.

How do I recycle my old battery?

The Sealed Lead Batteries used in your NBN™ Power Supply Unit are recyclable. However, these batteries contain hazardous waste and cannot be disposed of in your regular household bin. Please go to PlanetArk - recyclingnearyou.com.au to find a specialist recycling service near you.

How long does a Battery Backup last during a power outage?

Your NBN™ connection box will continue to be powered for approximately five hours during a power outage.

  • When approximately 40% of the battery charge is remaining (after about 3 to 3.5 hours), the power supply will automatically turn off to preserve the remaining charge for emergency use.
  • When you need to use the remaining charge press the emergency reserve button and within a few minutes your services will operate for the remaining approximately 1.5 to 2 hours.

How can I maintain and keep my new battery topped up?

To ensure the backup battery works when you need it, please maintain it by reading the following advice:

  • Regularly check the battery indicators lights on your Battery Backup Unit and pay attention to audible alarms, If you hear a beep once every 15 minutes this means either your battery needs replacing or the battery has been removed.
  • When your battery is used as indicated in the nbn™ User Guide, it will age to about 70% of its original capacity in around three to five years.
  • Your battery can age sooner if not kept at room temperature (around 20 degrees). Warmer temperatures can accelerate aging of the battery.
  • Turning the power on and off frequently will cause the battery to age earlier and reach 70% of its capacity in around one to two years.
  • Extremely cold conditions (less than -1 degrees Celsius) may cause the battery to run out more quickly.

Further information

Refer to your NBN™ user guide for further information or Download the NBN™ User Guide here.