Wired smoke detectors are often the last line of Defense between a landlord and a fire in your home. Designed to make a loud alarm sound when smoke reaches a certain distance from your sensor, a smoke detector can often save lives by alerting people to a fire that account has not it was there until it was too late. Although a wired smoke detector will operate out of electricity in your home, but also used batteries for backup power. If ever lost electricity to your home for any reason, your smoke detector will still be able to operate outside of the energy generated by these back-up batteries. They should be changed frequently to ensure that the detector will always be there when you need it.
Remove the smoke detector cover. Depending on the model, it is possible that you need to remove some screws in order to obtain cover. In any case, most of the models require that turn the CAP and unscrew, allowing you to know the wires and batteries inside.
Remove the old batteries. Depending on the model of wired smoke detector, could have a battery of 9 volts or a few AAA or AA size batteries. Take the old and throw away. If saves it in a lathe could be easy so you can confuse them with fully functional batteries.
Place the spare in the wired smoke detector batteries. If it is a 9 volt battery, will be in place only one specific way. If they are batteries of size AA-or AAA, be aware of the directions. The positive side of the battery should be in the detector in a certain way to make the unit work. The instructions will be printed in the own smoke detector.
Replace wired smoke detector cover. Screw the lid on by turning it in the opposite direction when you took away it. If you removed the screws, screw them again in at this time.
