Differences between wired and battery-powered Nest Protects

While both wired and battery powered Google Nest Protects have the same core features, there are a few small differences in how they are powered, report self-monitoring information and help with presence detection.

  Nest Protect
Nest Protect
Wired 120V-240V


Uses six long-life AA batteries for power. Batteries are designed for multi-year operation.*

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Is powered by 120V-240V** wires and comes with three long-life AA backup batteries in case of a power

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Small green power light

Not required.

As required by regulations, a small green LED indicates that Nest Protect is connected to 120V-240V** wires.

Installation and mounting

Installs in a few minutes, without connecting any wires.

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Installs in a few minutes, using the included 120V-240V** connector. Includes wire connectors or terminal blocks for connecting to
household wiring.

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Automatic switching

Helps improve automatic switching over time, so your Nest home has a better idea of when you’re home and when you’re not.

Battery powered Nest Protects update less frequently than wired Nest Protects to conserve battery power.

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Helps improve automatic switching over time, and can keep your home from switching to Away when other Nest products can’t detect you.

Wired Nest Protects update more frequently than battery powered Nest Protects.

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* Actual battery life will vary depending on a number of factors, including feature configuration, Pathlight usage, number of emergency and pre-alert events, etc.

** Different countries use different wiring standards, and the exact voltage of your wired Nest Protect depends on where you purchased it. For example, a Nest Protect sold in the United States includes components for 120V wires, whereas a Nest Protect sold in Europe includes components for 220V-240V wires.

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