Zaarly Blog

Homeownership 101: how to change your smoke detector batteries

testing a smoke detector
. That’s not a bird; it’s the periodic notice that your smoke detector’s battery is about to die, and you need to replace it. Chirp…Chirp…Chirp. The sound will slowly drive you mad if it isn’t dealt with quickly. And they don’t even use a standard battery! You need a 9-volt lithium battery (the weird rectangle ones). Oh, and you might think, “but mine is hardwired into my electricity!” Well, too bad. Even hardwired smoke detectors have backup batteries that slowly lose power over time. Chirp…Chirp…Chirp. Before we lose our minds.

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