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BRK Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector 6 -Pack

First Alert BRK Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector 6 -Pack

4.6
1726
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165 Questions
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How often do the batteries need to be replaced


They advertise the unit comes with a ten year battery. Why do they recommend replacing the battery every one to two years? Is it really a ten year battery??

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Thank you for your question. We recommend replacing the batteries semi-annually with Daylight Savings Time.

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