The smoke detector battery provides long-lasting ... If you have any dissatisfaction or questions about our batteries 9 volt size pack, please feel free to contact us. We will provide you with ...

and more GUARANTEED FOR 5 YEARS IN STORAGE – Duracell guarantees each Coppertop 9-Volt alkaline battery to last 5 years in storage, so you can be confident these batteries will be ready when you ...

As an affordable option with a long 10-year shelf life, 9-volt batteries have been the battery of choice for smoke alarms for a long time. The life span of a 9V battery depends on the quality and ...

The device needs to be hardwired, but it comes with a 9-volt battery as backup. Onelink Battery Powered Smart Smoke and Carbon Monoxide Detector by First Alert (Update: Out of Stock): This model ...