The Roost Smart Battery mimics the form of a 9V battery, installs in minutes, and lasts for more than 5 years. Using your home's WiFi, Roost will communicate when it's running low on power, so you can take action to avoid those dreaded middle-of-the-night interruptions. The Roost Smart Battery is designed to be used with your smoke or carbon monoxide detectors/alarms, so if you're following the US Fire Administrations's advice to change your batteries every time you change your clocks, this would be a very timely deal. A 2-pack of Roost Smart Batteries is currently discounted 31% on Amazon, from $65 down to $45, so the more you buy right now, the more you'll save. See the discounted Roost Smart Battery now on Amazon.
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