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