Celebrating over 25 years experience in fire & security monitoring

24/7/365 sales

800 263 2534


Tech Tip Video: How to Change the Battery in a DSC Power Series Security System Wireless Keyfob

DSC Power Series Security System Wireless KeyfobIn this continuing series, we show you how to perform some easy-to-do functions with your security systems.  In this Tech Tips video, we’ll show you how to change the battery in a wireless keyfob for your DSC Power Series Security System.  This video shows a one-button keyfob, however this will work for the two button and four button models as well.


Click Here to Download a User Manual for Your System!

How to Change the Battery in a DSC Power Series Security System Wireless Keyfob Instructions


You may need to change a battery at some point in the life of a wireless door contact, usually every 4 or 5 years. This can prevent service calls and false alarms from your system.

Tools Needed:

  • Small Flat head screw driver
  • Phillips head screw driver
  • Replacement battery

(Disclaimer – Call your Monitoring Station Prior to proceeding to prevent unnecessary calls and dispatches)

Today we’re going to use a 4-Button Keyfob, but this procedure will work with any DSC wireless keyfob.

If you look to the end of the keyfob, near where you would put a lanyard or key ring, you will see a small indented area. Insert your flat head screw driver in this space and give it a half-turn.

This will pop open the keyfob. Use your fingers to open the keyfob fully.

Use the Phillips head screw driver to remove the small screw in the middle of the circuit board.

Once removed, insert the flat head screw driver into the small indentation at the bottom of the circuit board and pop the board out.

Remove the battery and replace with a new CR2025 battery.

Replace the circuit board, and re-insert the screw.

Replace the cover by simply placing it on top of the keyfob and firmly pressing down.

Test the unit by pressing a button, and checking to see if it arms and disarms your system.

You’re all done!

Applicable Security Systems:

Leave a Reply

Your email address will not be published. Required fields are marked *

Testimonial & Case Study

  • "Fire Monitoring of Canada impressed us with their efficient, professional manner – an approach that not only inspired confidence, but resolved existing service issues with another alarm service provider." - Administrative Coordinator
    View More
  • "Their monitoring & service personnel are knowledgeable, helpful and responsible." - Facilities Manager
    View More
  • "The FMC technician was exceptionally professional in the performance of his duties. He was very organized, focused, safety minded" - Asset Manager
    View More