First Alert Smoke Detector Battery Change

Use the plastic tab to gently open the battery compartment.
First alert smoke detector battery change. The battery in 10 year alarms last for the life of the alarm eliminating the need for battery replacements. If it s locked you may need to remove the locking pin to open it. Buy a 10 year sealed battery smoke alarm. At first alert we offer 10 year smoke alarms that have a built in 10 year battery which eliminates the need for battery replacements for the life of the alarms.
Insert the new batteries and make sure the contact points are. How to replace an alarm battery. Remove the old battery. When installing the battery.
What smoke alarm do you have. We also offer hardwire alarms with a battery backup for protection during power outages. If the unit is locked onto the bracket you will have to deactivate the bracket lock. The first step is to remove the smoke alarm from the mounting bracket.
Deactivate the bracket lock use a flathead screwdriver and place it in between the unit s mounting bracket and the mounting bracket pin. Look at your 9v battery to identify the positive and negative contacts similar to what is shown in the image. How to replace a 9v battery. Remove the old batteries.
Press and hold the test reset button for 10 seconds to fully discharge the detector. Open the battery drawer. At first alert we are committed to creating reliable products that help protect your home and family. These alarms also have an end of life warning to remind you to replace the alarm after 10 years.