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How to Change an ADT Sensor Battery

ADT remote sensor batteries are either 9-volt alkaline or 3-volt lithium. They are relatively easy to change, as the covers simply snap off to expose the batteries. Batteries should always be replaced with the same type that was removed.

Instructions

    • 1

      Unsnap the cover from the remote sensor by pulling it away from the sensor body. You may need to squeeze the edges to pop the cover loose.

    • 2

      Remove the old battery. If it is a 9-volt, you need to unsnap the harness. If it is a 3-volt lithium, just pop it out.

    • 3

      Install the new battery.

    • 4

      Replace the cover by snapping it back into place.

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Home Alarm Systems
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  2. How to Replace a Battery in an ADT Door Sensor
  3. How to Change the Batteries in an ADT Home Unit
  4. How to Change the Batteries on an ADT Wireless Smoke Detector
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  6. How to Replace an ADT Motion Sensor Battery
  7. How to Change a Battery in an ADT Home Security System
  8. How to Change an ADT Chime Battery
  9. How to Change an Alarm Battery
  10. How to Change the Battery on a First Alert CO Sensor
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  12. How to Change a Battery in Wired Smoke Detectors

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