myQ App Displays Low Battery for myQ Smart Control or Hub

Your myQ App will alert you when the battery in your myQ Garage, Smart Garage Hub or Chamberlain/LiftMaster Smart Garage Control's door sensor is low and needs to be replaced. Follow the steps below to replace the battery and clear the warning.

Why Am I Seeing a Low Battery Warning?

If your myQ App shows a low battery message, this means the battery in your door sensor needs to be replaced.

• After replacing the battery, it may take up to 6 garage door cycles (openings and closings) for the alert to disappear.
• Cold weather can impact battery life and voltage, so we recommend checking and replacing the battery at the start of colder months.

How to Replace the Battery in the Door Sensor

For myQ Garage, Smart Garage Hub, and Smart Garage Control

1. Locate the sensor – The door sensor is usually mounted on the top panel inside your garage door.
2. Open the door sensor – Press the release tab at the bottom or gently pry it open.
3. Remove the old battery – Slide it out carefully. Do not use sharp objects to push it out, as this may damage the sensor.
4. Insert a new battery – Use a 3V lithium CR2450 coin cell battery (+ side facing up)
5. Close the sensor cover – Snap it securely back into place.
6. Test the sensor – Press the button on the sensor. The LED light should flash, and the hub should beep.
7. Clear the warning – Open and close your garage door up to 6 times to allow the app to update.

Tip: If the low battery warning remains after multiple cycles, try closing completely out of the myQ App and then reopening to refresh the connection. Try unplugging the hub for 30 seconds and then pluggin it back in.

How to Test if the Battery is Low

For testing steps, see: How to Test the Door Sensor for a Low Battery.

Video Guides

Watch the following videos for additional help:

• How to Test and Replace the Battery in Your myQ Smart Garage Control Door Sensor 

• How to Test and Replace the Battery in Your Chamberlain Smart Garage Hub Door Sensor