Type of batteries in smoke detectors
Use this finder to answer the question what type of battery does a smoke alarm take for major smoke alarm brands. Select a brand, then optionally enter a model to narrow the results. The brand content explains what type of battery do smoke detectors use in that lineup, whether smoke detectors need batteries, and whether the unit is replaceable battery, hardwired with backup, or a sealed 10-year alarm.
Battery Table
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| Brand | Model | Alarm type | Power source | Replaceable battery? | Battery type | How many batteries | 10-year sealed? | Hardwired backup battery? | Notes |
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