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Battery Replacement Guide

Changing a battery is easy and worry-free. In some cases you won't need any tools, and in some cases you'll need a flat head or a Philips screwdriver. We've even got videos and instructions to guide you through.

Before You Begin:

  • Please make sure your Homelife system is disarmed prior to changing the batteries in any of your Homelife devices.
  • Then call the Central Monitoring Station at 1-800-633-2677 to put your system into test mode. This will prevent your system from triggering a false tamper alarm.
  • Please also be sure to note the polarity shown in the battery compartment and match the + and – signs on the ends of the batteries where indicated on the device.

Door/Window Sensors

IMPORTANT! Please avoid pressing the tamper switch on the inside of your door/window sensors when swapping out the battery.

Pressing the tamper switch will cause your sensor to reset, and require a technician visit to reconnect it.

Image: Battery Replacement

Battery Replacement Details

Locate your device below for battery specifications and replacement instructions.

Image: Carbon Monoxide Detector
Carbon Monoxide Detector

SMC Brand

Download printable instructions or watch the video

Image: Door/Windows Sensor Sercomm
Door and Window Sensor

Sercomm Brand

Download printable instructions

Image: Door/Windows Sensor SMC
Door and Window Sensor

SMC Brand

Download printable instructions or watch the video

Image: Door/Windows Sensor
Door and Window Sensor

Visonic Brand

Download printable instructions or watch the video

Image: Door/Windows Sensor
Door and Window Sensor

Visonic Brand

Download printable instructions or watch the video

Image: Glass Break Sensor
Glass Break Sensor

SMC Brand

Download printable instructions or watch the video

Image: Key Fob
Key Fob

Hiltron Brand

Download printable instructions or watch the video

Image: Key Fob - SMC
Key Fob

SMC Brand

Download printable instructions or watch the video

Image: Motion Sensor
Motion Sensor

Bosch Brand

Download printable instructions

Image: Motion Sensor
Motion Sensor

Bosch Brand

Download printable instructions or watch the video

Image: Motion Sensor SMC
Motion Sensor

SMC Brand

Download printable instructions or watch the video

Image: Motion Sensor Visionic
Motion Sensor Visionic

Visionic Brand

Download printable instructions or watch the video

Image: Smart Door Locks
Smart Door Locks

Kwikset Brand

Download printable instructions or watch the video

Image: Smoke Detector SMC
Smoke Detector

SMC Brand

Download printable instructions or watch the video

Image: Smoke Detector Visionic
Smoke Detector

Visionic Brand

Download printable instructions or watch the video

Image: Smart Thermostat
Thermostat

Zen Brand

Download printable instructions

Image: Smart Thermostat
Smart Thermostat

Centralite Brand

Download printable instructions or watch the video

Image: Smart Thermostat
Thermostat

Radio Thermostat Brand

Download printable instructions or watch the video

Image: Water Sensor
Water Sensor

Visionic Brand

Download printable instructions or watch the video

Image: Wireless Keypad
Wireless Keypad

SMC Brand

Download printable instructions or watch the video

See Cox Homelife service details. See important information in the Residential Customer Service Agreement for full coverage details. See Annual Notice information for related information and your privacy rights as a Cox customer. See also the Annual Customer Notices. For all Cox Communication policies regarding our services and business practices visit www.cox.com/aboutus/policies.html.

Cox Homelife Service provided by Cox Advanced Services: Arizona, LLC - ALARM License No. 18141-0, ROC License No. 310876; Arkansas, LLC – License No. E 2014 0026/CMPY.0002278; California, LLC–Alarm License #7196 & Contractor’s License #992992; Connecticut, LLC–License #N/A; Florida, LLC–License No. EF20001232; Georgia, LLC–License: Bryan David Melancon #LVU406595; Idaho, LLC 024933; Iowa, LLC– License #C121646 & AC268; Louisiana, LLC–License F 2006; Nebraska, LLC–License #26512; Nevada, LLC dba Cox Homelife – License #78331; Ohio, LLC–License #53-18-1671; Oklahoma, LLC–License #2002; Rhode Island, LLC–License #9314; Kansas, LLC – Topeka License No. 109 & Wichita License No. 2015-36492; and Cox Advanced Services Virginia, LLC–DCJS License #11-7776; DPOR License # 2705164725.

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