2GIG Smoke Detectors—Battery Replacement

Find the image of your smoke detector below to view instructions on how to complete your battery replacement.

Once you've replaced the batteries, the error on your panel should clear within one hour. If you would like to clear the error manually, click here.


2GIG 2GIG-SMKT3-345 Smoke Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace 3 AAA Alkaline batteries.

2GIG-SMK3-345 Smoke Detector Battery Replacement 1 2GIG-SMK3-345_Smoke_Detector_Battery_Replacement_2.jpg

Battery Replacement Video:


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Honeywell 5808W3 Smoke Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace CR123A lithium battery.

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Honeywell 5800 Combo Smoke Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace 4 CR123A Lithium batteries.

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Honeywell 5808W3A Smoke Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace 2 CR123A Lithium batteries.

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2001RFH Smoke Detector:

Twist sensor counter-clockwise to remove from base, then remove and replace 2 9-Volt Alkaline batteries.

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If you need further assistance, you can text a Support Representative at 469.513.8685, 7 days a week from 8 am to 8 pm CT.