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How Nest Secure keeps working if the power goes out

On April 8, 2024, Nest will no longer support Nest Secure. It will not be accessible in the Nest app and will no longer connect to the internet. You will not be able to use the Nest app to check the status of your Nest Secure, control your Nest Secure devices, or receive notifications from your alarm system. 

For more information, go to this Community Forum post.

Google Nest Guard comes with a backup battery that will keep it powered on for at least 12 hours in case it gets unplugged or your home’s power is out. Google Nest Secure will still be able to look after your home and sound the alarm if needed, and you’ll still have access to key security features such as arming and disarming, but some features will be disabled.

Nest Secure will let you know about power issues so you’ll know what’s happening even if you’re not at home. However, some notifications will depend on a cellular backup subscription.

Notifications you’ll get when Secure is on backup power

If you don’t have cellular backup

  • If your home’s Wi-Fi is down, which can happen when your entire home loses power, you’ll get a push notification that Guard is offline.
    • You won’t receive any more notifications, such as if the alarm is sounding, until Wi-Fi is back up.
  • If your home’s Wi-Fi is still working but Guard loses power, for example if the outlet that Guard’s plugged into stops working but the rest of your home has power, you may get multiple notifications.
    • You’ll get a notification that Guard has switched to backup battery power.
    • When Guard’s backup battery power is critically low you’ll get a second notification, and you’ll see the status change in the Nest app.
    • If backup power runs out, you’ll get a notification that Nest Secure is about to shut down. Before it shuts down, Guard will disarm. Its status will also change to Offline in the Nest app.

If you do have cellular backup

  • You’ll get a notification that Guard has switched to backup battery power.
  • When Guard’s backup battery power is critically low you’ll get a second notification, and you’ll see the status change in the Nest app.
  • If backup power runs out, you’ll get a notification that Nest Secure is about to shut down. Before it shuts down, Guard will disarm. Its status will also change to Offline in the Nest app.

Nest Secure features that are available on backup power

When the power goes down, you may or may not be able to use certain Nest Secure features. What’s available depends on whether your Wi-Fi is still working or you have a cellular backup subscription. See the table below for details:

Guard and Detect features

 

Wi-Fi

Cellular backup

No Wi-Fi or cellular connection

Sense activity

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Sense open/close for windows and doors

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Sound a Heads-Up or alarm

check mark icon

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Sound a Panic alarm

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Arm or disarm with a passcode or Google Nest Tag

check mark icon

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Download software updates

check mark icon

   

Nest app features

Arm and disarm using the app

check mark icon

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Get notifications about alarms and other important events

check mark icon

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Change Guard settings

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Change Google Nest Detect settings

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See current status information in Security History

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Assign Nest Tags and passcodes

check mark icon

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Add new Detects or Tags to your account

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