The battery in 10 year alarms last for the life of the alarm eliminating the need for battery replacements.
First alert smoke detector battery change.
Buy a 10 year sealed battery smoke alarm.
How to replace an alarm battery.
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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.
When installing the battery.
Remove the old battery.
Use the plastic tab to gently open the battery compartment.
Look at your 9v battery to identify the positive and negative contacts similar to what is shown in the image.
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.
The first step is to remove the smoke alarm from the mounting bracket.
What smoke alarm do you have.
Insert the new batteries and make sure the contact points are.
These alarms also have an end of life warning to remind you to replace the alarm after 10 years.
Open the battery drawer.
The national fire protection association nfpa recommends changing the batteries in your smoke alarm every 6 months.
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.
If the unit is locked onto the bracket you will have to deactivate the bracket lock.
If it s locked you may need to remove the locking pin to open it.
How to replace a 9v battery.