How Often Change Smoke Detector Battery. Lithium-ion batteries that last 6 years so you dont have to change the battery that often. With the battery removed press and hold the test button for 15-20 seconds.
Test the alarm monthly. Rather than risking damage to your smoke detector from improperly cleaning it you should replace it if it is filthy or more than 10 years old. Removing the battery from a smoke alarm also called a smoke detector wont set the unit off and start the fire alarm beeping.
If you have ionization smoke detectors the battery supplies electricity to positive and negative.
Hard wired smoke detectors may seem to be permanent solutions to fire safety in your home but they do require some maintenance. It might seem like too much but what many people dont realize is that smoke detectors run 247. Mark the date you changed your battery on the inside. Read our tips to check and test that your smoke detectors are always working properly.
