Changing the battery in a hardwired smoke detector with a backup battery is a straightforward process. Steps to Change the Battery in Hardwired Smoke Detectors.
Before starting, turn off the power to the smoke detector at the circuit breaker to avoid any electrical hazards. Gently twist or pull down the smoke detector from its mounting bracket. Be careful not to pull too hard, as it will still be connected by wires.
Locate the wiring harness (the connector with wires). Squeeze the sides of the connector to release it from the smoke detector.Depending on your model, the battery compartment may be on the back or side of the detector. Open this compartment to access the battery.
Take out the old battery, noting its orientation (positive and negative terminals). Most hardwired smoke detectors use a 9-volt battery, but check your model for specifics.Insert a new battery, ensuring that you align it correctly with the positive (+) and negative (-) terminals as indicated inside the compartment.
Once the new battery is in place, reconnect the wiring harness by aligning it and pressing it firmly until you hear a click.Position the smoke detector back onto its mounting bracket and twist it clockwise until it locks into place.
Turn the power back on at the circuit breaker.Press the test button on your smoke detector to ensure it is functioning properly. If it emits a sound, it indicates that everything is working correctly.It’s recommended to change your smoke detector batteries at least twice a year, ideally when you change your clocks for daylight saving time.
Always refer to your specific smoke detector's user manual for detailed instructions and safety precautions.By following these steps, you can ensure that your hardwired smoke detectors remain operational and ready to alert you in case of fire.