How to change the battery in a garage door opener?

How to change the battery in a garage door opener?


Changing the battery in a garage door opener is a simple yet essential task that ensures the smooth operation of your garage door. In this article, we will guide you through the step-by-step process of changing the battery in a garage door opener, providing you with the knowledge to perform this maintenance task with confidence.

Step 1: Identify the Type of Battery

Before you begin, it is important to identify the type of battery your garage door opener uses. Most garage door openers utilize either a 9-volt or a 12-volt battery. You can find this information in the user manual of your garage door opener or by checking the existing battery.

Step 2: Prepare the Necessary Tools and Materials

To change the battery in your garage door opener, you will need the following tools and materials:

– Screwdriver: Depending on the model of your garage door opener, you may need either a flathead or a Phillips screwdriver to access the battery compartment.
– Replacement Battery: Purchase a new battery that matches the voltage and specifications of the old battery. It is recommended to use high-quality batteries to ensure optimal performance and longevity.

Step 3: Disconnect the Power

Before you start working on your garage door opener, it is crucial to disconnect the power to avoid any potential accidents. Locate the power cord of your garage door opener and unplug it from the electrical outlet. This will ensure that the opener is not powered during the battery replacement process.

Step 4: Access the Battery Compartment

Using the appropriate screwdriver, remove the screws that secure the battery compartment cover. Carefully remove the cover to reveal the old battery. Take note of the battery’s orientation, ensuring you install the new battery in the same direction.

Step 5: Remove the Old Battery

Gently remove the old battery from its compartment, taking care not to damage any surrounding components. Dispose of the old battery in accordance with local regulations for proper battery disposal.

Step 6: Install the New Battery

Take the new battery and place it into the battery compartment, ensuring it is correctly oriented. Double-check the polarity markings on the battery and the compartment to ensure proper alignment. Firmly press the battery into place to ensure a secure connection.

Step 7: Replace the Battery Compartment Cover

Carefully align the battery compartment cover and secure it back in place using the screws you removed earlier. Make sure the cover is tightly secured to prevent any moisture or debris from entering the compartment.

Step 8: Reconnect the Power

Once the battery is successfully replaced and the battery compartment cover is securely in place, reconnect the power to your garage door opener by plugging it back into the electrical outlet.


Changing the battery in a garage door opener is a straightforward process that can be done by following a few simple steps. By identifying the type of battery, preparing the necessary tools and materials, disconnecting the power, accessing the battery compartment, removing the old battery, installing the new battery, replacing the battery compartment cover, and reconnecting the power, you can ensure the smooth operation of your garage door opener.


– Chamberlain:
– LiftMaster:
– Genie: