9V Rechargeable Batteries for Sale
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You might be considering a rechargeable battery for your smoke detectors.
There's some debate about whether or not you should use rechargeable batteries for smoke detectors - we really recommend going with a more predictable traditional 9 volt alkaline battery like the Energizer EN22 or the L522 Energizer Ultimate Lithium for the longest lasting power. Learn more about what 9V batteries are best for smoke alarms.