How to Put a Battery in a Wired Smoke Detector

Wired smoke detectors are like any other smoke detectors, except that they are hard-wired to your home's electrical system. However, they still use batteries as a backup power source in the case your power goes out. Like any other smoke detector, the battery should be replaced on a yearly basis to ensure that the detector is in good working order. While the mechanics of a wired smoke detector are slightly different from other types, the process for putting in a battery is the same.

Screwdriver

Instructions

- 1
  Remove any screws from the cover of the smoke detector with a screwdriver. Depending on your particular model, you may not have to remove screws.
- 2
  Grip the cover of the detector along the sides with your fingers. Turn the cover counterclockwise until it comes loose.
- 3
  Pull the cover away to reveal small cords and the old battery.
- 4
  Remove the dead battery. Look at the battery port to determine which way the battery goes. There should be a small diagram of a battery with a “+” on one side and a “-” on the other. Insert the battery into the port according to what the diagram shows.
- 5
  Screw the cover back on once the battery is successfully installed. Secure the cover in place with screws if necessary.

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