Less than 50% of battery reserve is available and shutdown is imminent (beep once every 4 minutes).Battery self test fails and replacement is required (beep once every 15 minutes).Your NBN™ Power Supply Unit may emit a beeping sound (Battery Alarm) for the following reasons:
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If the battery runs completely flat, your Fibre Phone will not work again until power has been restored and/or the backup battery has been recharged.īattery Alarm sounds & how to silence them. The remaining battery charge should last for a further 2 to 3 hours. Once activated, you cannot turn the BATTERY EMERGENCY USE off again. To turn the Power Supply Unit back on after the battery has reached less than 50% charge, you’ll need to press and hold the BATTERY EMERGENCY USE button for two seconds, or until the unit beeps once and all 4 lights flash. Once the battery charge has depleted to approximately 50%, the Power Supply Unit will beep four times in a minute (the Battery Power light will also flash) and then the unit will turn off to preserve power. In the event of a power outage, the Power Supply Unit will beep once and automatically switch to its backup battery power. How your battery works during a power outage This will ensure the battery remains fully charged in case of a power outage. Unless you are going on an extended holiday, you should not turn off this electrical outlet. 
Do not use an extension cord, double adaptor, power board or any other kind of secondary plug.
Make sure that your NBN™ Power Supply Unit is always plugged directly into an electrical outlet. Westnet no longer offers the option of a battery backup unit as of 30 August 2017. The backup battery available for NBN™ Fibre Power Supply Units, when fully charged, can allow an NBN™ Fibre Phone plugged into a UNI-V port on your Connection Box to work between 3 and 11 hours in the event of a power outage.
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