Smoke detectors are one of the most important electronic devices you have in your home. Ensuring they’re in good working condition starts with using the best batteries for your devices and keeping ...

Battery-powered smoke detectors easily detach from a wall plate so you can access a panel on the back to change the battery. Wired smoke detectors tend to cost more, but not too much.

Many people complain about the annoying “chirp” indicating a weak battery, but knowing the detector is completely broken is enough to keep anyone awake at night.

Even “hard-wired” smoke detectors that are plugged in to the home’s electrical supply typically have a 9-volt backup battery to keep the detectors operating in case of a power outage. Often ...

If your smoke detector is still within date, you can replace the battery instead of the whole smoke detector. However, if you replace the batteries and your detector still doesn't work, a full ...

The battery should be replaced once a year. Pick a certain date that can be remembered, like when switching to or from Daylight Savings time, to replace all smoke alarm batteries. ...

Smoke alarms are powered by battery or by your home’s electrical system. If the smoke alarm is powered by battery, it runs on either a disposable nine-volt battery or a non-replaceable 10-year ...

You can replace hard-wired smoke detectors yourself if you can reach them and if you’re skilled enough to replace a light fixture. Otherwise, hire a security system company or an electrician.

Q: My home has hard-wired smoke detectors. How often do I need to replace them, and what kind of replacements do I need? Can I do it myself, or do I need a professional? And if I need a pro, what ...