Use the plastic tab to gently open the battery compartment.
First alert smoke detector battery change.
The national fire protection association nfpa recommends changing the batteries in your smoke alarm every 6 months.
The first step is to remove the smoke alarm from the mounting bracket.
How to change batteries in first alert alarms number of views 45 18k minimum installation requirements for models 1042135 or 1042136 onelink smart smoke co alarm.
Open the battery drawer.
Insert the new batteries and make sure the contact points are.
Choose the option that allows you and your family the most peace of mind.
Press and hold the test reset button for 10 seconds to fully discharge the detector.
At first alert we are committed to creating reliable products that help protect your home and family.
Deactivate the bracket lock use a flathead screwdriver and place it in between the unit s mounting bracket and the mounting bracket pin.
Buy a 10 year sealed battery smoke alarm.
How to replace a 9v battery.
We also offer hardwire alarms with a battery backup for protection during power outages.
When installing the battery.
Look at your 9v battery to identify the positive and negative contacts similar to what is shown in the image.
The battery in 10 year alarms last for the life of the alarm eliminating the need for battery replacements.
What smoke alarm do you have.
Remove the old batteries.
How to replace an alarm battery.
Remove the old battery.
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.