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Do It Yourself: How to change your smoke/carbon monoxide detector batteries

Regularly checking the batteries on your smoke detector is a must. Most of all for safety, but it's also going to prevent you from having the annoying chirping sound coming from your smoke detector when the batter gets low. Here, we show you how to do this. Most smoke detectors run on AC power with a batter back up. The battery on most model is located on the back of the smoke detector. So you'll need to remove it from the ceiling to get access. To remove, typcially as simple as twisting it counter clockwise to remove it from the mount. Some models require you to un-plug the AC Power first. Then you can access and change out the battery. It's as simple as that. We recommend you do test it every so often to make sure it's still working and to change the battery, twice a year if needed. Pro Tip: A good reminder of when to do this to do it when you set your clocks for Daylights Savings Time.