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Replacing batteries in your XFINITY Home device

 Learn how to replace the batteries in your XFINITY Home devices.


When some devices' batteries begin to expire, a low-battery alert displays in your XFINITY Home Subscriber Portal, on the XFINITY Home app for mobile devices and if you have XFINITY Home - Secure, on your Touchscreen Controller. Replace the battery within two weeks of receiving the alert.

If you receive a low battery alert within 30 days of device installation, please Contact Us.

What You'll Need
  • XFINITY Home
  • Access to your XFINITY Home devices
  • Access to the XFINITY Home app for mobile devices, Subscriber Portal or Touchscreen Controller
  • Small flathead screwdriver
  • Small Phillips-head screwdriver
  • Replacement batteries (see devices below for battery types and number of batteries required)
  • Two-sided tape (for certain Wireless Keypads and Sensors)
Difficulty
Medium
 
 
 
Which Devices' Batteries Need to Be Replaced?
Help Protect Our Environment: Please properly recycle your discarded batteries and don't put them in the trash. For your convenience, batteries are accepted for recycling at various locations. Please check www.call2recycle.org or call 1-800-8-Battery (1-800-8-228-8379) to find a recycling location near you.

Door/Window Sensor

Take a look at your Door/Window Sensor and the photos below to find out which set of instructions apply to your Sensor model.

In all Sensor models, the sensor is the large piece of the device that's usually attached to your window or door frame. The sensor magnet is the small piece of the device that is usually attached to the door or window itself.

Did You Know? When you open a Door/Window Sensor to replace the battery, your XFINITY Home system will alert you that the Sensor is being tampered with. Don't worry, the tamper alert will clear when you reassemble the Sensor to the base or replace the battery cover.

XHS2-SE, XHS2-TY or XHS2-UE Door/Window Sensor
XHS2-SE or XHS2-TY Door/Window Sensor.

Battery Type: 1 CR2450, 3V

Learn how to replace batteries in the XHS2-SE, XHS2-TY or XHS2-UE.
 
XFINITY Home Battery Replacement: XHS2 Door and Window Sensors
 
 
Sercomm SZ-DWS04 Door/Window Sensor
Sercomm SZ-DWSO4 Door/Window Sensor.

Learn how to replace batteries in your Sercomm SZ-DWS04 Door/Window Sensor.
 
XFINITY Home Battery Replacement: Sercomm SZ-DWS04 Sensor
 
 
Visonic MCT-340 SMA Door/Window Sensor
Visonic MCT-340 Door/Window Sensor.

Learn how to replace batteries in your Visonic MCT-340 Door/Window Sensor.
 
XFINITY Home Battery Replacement: Visonic MCT-340 Sensor
 

Visonic MCT-320 SMA Door/Window Sensor
Visonic MCT-320 Door/Window Sensor.

Learn how to replace batteries in your Visonic MCT-320 Door/Window Sensor.
 

SMC, SMCDW01-Z or SMCDW02-Z Door/Window Sensors
SMC Door/Window Sensor.

Learn how to replace batteries in your SMCDW01-Z or SMCDW02-Z Door/Window Sensor.
 

Motion Sensor

Take a look at your Motion Sensor and the photos below to find out which set of instructions apply to your Sensor model.

Did You Know? When you open a Motion Sensor to replace the battery, your XFINITY Home system will alert you that the Sensor is being tampered with. Don't worry, the tamper alert will clear when you reassemble the Sensor to the base or replace the battery cover.

XHS1-TY Motion Sensor
XH S1-TY Motion Sensor.

Learn how to replace your batteries in your Tyco XHS1-TY Motion Sensor.
 
XFINITY Home Battery Replacement: Tyco XHS1-TY motion sensor
 

Visonic NEXT K85 Motion Sensor
Visonic Motion Sensor.

Learn how to replace batteries in your Visonic NEXT K85 Motion Sensor.
 

SMC Motion Sensors
SMC Motion Sensor.

Learn how to replace batteries in your SMC SMCMT01-Z or SMCMT03-Z Motion Sensor.
 

Visonic Targeted Motion Sensor
Visonic Targeted Motion Sensor.

Learn how to replace your batteries in your Visonic CLIP Motion Sensor.
 

Thermostat

Take a look at your Thermostat and the photos below to find out which set of instructions apply to your Thermostat model.

CentraLite Thermostat
Centralite Thermostat.


Learn how to replace batteries in your CentraLite Thermostat.
 

Homeworks Thermostat
Homeworks Thermostat.


Learn how to replace batteries in your RTCOA CTS30S Thermostat.
 

Zen Thermostat
Zen Thermostat

Learn how to replace batteries in your Zen Thermostat.
 
XFINITY Home Battery Replacement: Zen Thermostat

 

 

Keychain Remote

SMC Keychain Remote
SMC Keychain Remote.

Learn how to replace batteries in your SMC Keychain Remote.
 

Wireless Keypad

Take a look at your Wireless Keypad and the photos below to find out which set of instructions apply to your Keypad model.

SMC SMCWK01-Z Wireless Keypad

Watch SMC's battery replacement video.

SMC SMCWK01-Z Wireless Keypad.

Learn how to replace batteries in your SMC Keypad.
 

CentraLite Wireless Keypad
Centralite Wireless Keypad.

Learn how to replace batteries in your CentraLite Keypad.

XFINITY Home Battery Replacement: Centralite 3400 Keypad
 
 
TCH XHK1-TC or UEI XHK1-UE Wireless Keypad
UEI Wireless Keypad.

Learn how to replace batteries in your TCH XHK1-TC or UEI XHK1-UE Keypad.

XFINITY Home Battery Replacement: XHK1 Keypads

 

Glass Break Sensor

Did You Know? When you open a Glass Break Sensor to replace the battery, your XFINITY Home system will alert you that the Sensor is being tampered with. Don't worry, the tamper alert will clear when you reassemble the Sensor to the base or replace the battery cover.

SMC SMCGB01-Z or SMC SMCGB02-Z Glass Break Sensor
SMC Glass Break Sensor.

Learn how to replace batteries in your SMC Glass Break Sensor.
 

Water Detector

Did You Know? When you open a Water Detector to replace the battery, your XFINITY Home system will alert you that the Sensor is being tampered with. Don't worry, the tamper alert will clear when you reassemble the Sensor to the base.

Visonic MCT-550 SMA Water Detector
Visonic Water Detector.

Learn how to replace batteries in your Visonic Water Detector.
 

Smoke Detector

Take a look at your Smoke Detector and the photos below to find out which set of instructions apply to your model.

Did You Know? When you open a Smoke Detector to replace the battery, your XFINITY Home system will alert you that the Sensor is being tampered with. Don't worry, the tamper alert will clear when you reattach the Sensor to the base.

Visonic MCT-427 SMA Smoke Detector
Visonic MCT-427 SMA Smoke Detector.


Learn how to replace batteries in your Visonic Smoke Detector.
 

SMC SMCSM01-Z or SMC SMCSM02-Z Smoke Detector
SMC SMCSM01-Z Smoke Detector.


Learn how to replace batteries in the SMCSM01-Z or SMCSM02-Z Smoke Detector.
 

Door Lock

Kwikset SmartCode 914 Door Lock
Door lock

Learn how to replace the batteries in your Kwikset Door Lock.
 
 

Frequently Asked Questions

 

How do I know if the batteries in my devices are working?
When it comes to batteries, no news is good news.

When a device's battery begins to expire, a low-battery alert displays in your XFINITY Home Subscriber Portal, on the XFINITY Home app for mobile devices, and if you have XFINITY Home - Secure, on your Touchscreen Controller.


I just noticed that one of my devices has a low battery. How much time do I have to replace it?
Generally, you have about four to six weeks to replace a low battery, but how long the battery lasts depends on several things, including temperature, WiFi signal strength and how often a sensor is triggered.

For example, the battery in a door sensor that is regularly opened and closed will drain faster than one on a window that is rarely opened. To be on the safe side, it's best to replace batteries within two weeks of the low-battery notification.


What happens if the battery dies completely?
A device with a dead battery can't communicate and won't respond to rules or scenes.

For example, if the battery in a door sensor is dead, it won't tell the system when the door is opened. You won't be able to use your Subscriber Portal, the XFINITY Home app for mobile devices or the Touchscreen Controller to see if it's closed; and, if you have a rule that says to take five pictures when the door opens, the Camera won't know the door has opened, so it won't take any pictures.

More importantly, if you have XFINITY Home - Secure, you won't be able to arm your system without bypassing the door zone. See Arm and Disarm Your XFINITY Home - Secure System.
 

Where can I buy replacement batteries?
Replacement batteries are available at most retail stores where batteries are normally sold.


How do I install new batteries? Will I set off my alarm?
It's very important to make sure your XFINITY Home system is disarmed before changing the batteries in your device. For step-by-step instructions, see XFINITY Home: Replacing Batteries in Your Devices.


Version history
Revision #:
7 of 7
Last update:
‎08-14-2017 11:50 AM
Updated by:
 
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