2012
12.30

Recently, I was replacing the battery on a UPS inside my house when I remembered that the ONT power supply for our Telstra Smart Community also can take a backup battery. Having a battery installed in the unit is helpful as it will allow you to make phone calls, use the internet, etc when power is out. It’s a quick 1 minute install provided you have the correct battery on hand.

The Telstra ONT (internal unit) takes a 12V 7.0-7.2Ah Sealed Lead Acid Battery (6 Cells), I picked one of these up from Battery World in Blacktown for about $38. This is also the same battery that is in most home alarm systems, so they’re pretty common.

ONT-PSU-Battery

Installing the battery in the unit itself is very trivial. First of all, locate the power supply unit, for those of you who don’t know what it looks like, here’s a photo.

ONT-PSU

 

To open the unit, simply pull the tab at the top down and the unit will pop open (that little tab above the Telstra sticker). and you will have a compartment to put the battery in. As the battery is optional, it is most likely the builders did not install one in your home when it was built. At least, that was the case for us.

You can pop the battery in, attach the red (positive) to the positive terminal on the battery, and negative (black) to the negative terminal.

ONT-PSU-inside

 

Turn the power back on, and wait a while to allow your battery to charge. Next time you have a power outage, you can continue to use your phone/surf the net, etc.

Reference for battery: http://www.telstra.com.au/smart-community/download/document/smart-community-battery-1108.pdf

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