How Often Should A Smoke Detector Battery Be Changed. Experts recommend replacing all connected smoke alarms at. Change smoke alarm batteries how often should smoke alarm batteries be changed smoke alarm batteries smoke alarm battery change smoke alarmed smoke detector batteries Luke Pritchard Luke is an electrician of 19 years and founder of Smoke Alarmed - a smoke alarm installation service and testing company on the Sunshine Coast QLD Australia.
Simply put a battery in close the case put the cover back on and reattach the detector. Most smoke detectors have a red reset button. Some modern smoke detectors come with a 10-year lithium-ion battery.
But the instructions on a battery.
If youre using a typical nine-volt battery youll need to change the smoke alarm batteries at leastonce every year although many experts recommend changing them twice a year. That or yearly sounds practical for a battery-operated unit. Even if a smoke detector hasnt reached the 10-year mark replace it if it chirps even after youve replaced the battery or if the alarm doesnt sound when you perform the recommended monthly test. Test the alarm monthly.
