Changing the battery takes two minutes and costs a few dollars

The battery in your LiftMaster remote dies like any other battery—usually without warning, right when you need to open the garage. Replacing it is straightforward: pop open the remote case, slide out the old battery, and slide in a new one of the same type. Most LiftMaster remotes use a 9-volt or 3-volt lithium battery, and you can buy replacements at any drugstore, hardware store, or online retailer for between $3 and $8.

The exact steps depend on which remote model you own, but the principle is the same across all of them. This guide covers the most common LiftMaster remote designs and tells you what to look for if yours is different.

Key Takeaways

  • Most LiftMaster remotes use either a 9-volt battery or a 3-volt CR2032 lithium coin cell, printed on the battery compartment itself.
  • Open the remote by sliding a coin or flathead screwdriver into the seam on the back, or by unscrewing a small screw if your model has one.
  • Note which direction the old battery faces before you remove it, then insert the new battery the same way.
  • If the remote still does not work after a fresh battery, the remote itself may be faulty and you may need a replacement.

Find out what battery your remote needs

The battery type is printed directly on the inside of your remote case. Open the back of the remote and look at the battery compartment—you will see a label that says either "9V" or a model number like "CR2032" or "CR2025".

If you cannot open the remote yet, look at the outside of the case. Many LiftMaster remotes have the battery type printed on the back panel. If it is not there, you can also check the original documentation that came with your garage door opener, or call your garage door installer to confirm.

Once you know the type, you can buy a replacement at a pharmacy, grocery store, hardware store, or online. Bring the old battery with you if you shop in person—the staff can match it to the shelf stock in seconds.

Open the remote case

LiftMaster remotes open in one of two ways: by sliding or by unscrewing. Look at the back of your remote to see which applies.

For slide-open remotes: Look for a seam running around the edge of the back cover. Insert a coin (a dime or penny works) or a flathead screwdriver into the seam and gently twist or pry. The back cover will slide off. Do not force it—if it does not move, try a different spot along the seam.

For screw-open remotes: Look for a small screw on the back, usually in a corner or along an edge. Use a screwdriver (usually Phillips head) to remove it. The back cover will then slide or lift off. Keep the screw in a safe place so you do not lose it.

Remove the old battery and note its direction

Once the case is open, you will see the battery sitting in a compartment. Before you touch it, look at which way it is facing. Most batteries have a flat side and a rounded side, or a + and − symbol. Note which direction the + or flat side faces—toward the top of the remote, toward the bottom, or toward one side.

Gently lift or slide the old battery out. If it is stuck, do not force it—a gentle rocking motion usually frees it. Once it is out, set it aside. Do not throw it away yet; if the new battery does not work, you may need to check whether the old one was actually dead or whether the remote has another problem.

Insert the new battery the same way

Take your new battery and orient it the same way the old one was facing. Slide or place it into the compartment. You should hear or feel a small click as it seats. Do not force it—it should slide in smoothly.

Close the remote case by sliding the back cover back on (for slide-open models) or by replacing and tightening the screw (for screw-open models). Make sure the case is fully closed and sits flush with the front of the remote.

Test the remote and troubleshoot if needed

Point the remote at your garage door opener and press a button. The door should respond. If it does not, try pressing the button several more times—sometimes a new battery needs a moment to make full contact. If the door still does not open, try the button from different distances and angles.

If the remote works intermittently or only from very close range, the battery may be making poor contact. Open the case again and reseat the battery, making sure it is fully inserted and facing the correct direction.

If a fresh battery does not solve the problem, the remote itself may be faulty. The circuit board inside may have failed, or the button contacts may be worn. In that case, you will need a replacement remote. LiftMaster sells replacement remotes for most models, and your garage door installer can also order one for you.

Common battery types in LiftMaster remotes

Most LiftMaster remotes use one of these batteries:

  • 9-volt battery: A rectangular battery about 1.5 inches tall. Common in older and larger LiftMaster remotes. Lasts about one to two years with normal use.
  • CR2032: A small round coin-cell battery, about the size of a dime but thicker. Very common in newer LiftMaster remotes. Lasts about two to three years.
  • CR2025: Similar to the CR2032 but slightly thinner. Less common but works the same way.

All of these are standard batteries sold everywhere. You do not need a special LiftMaster battery—any brand works as long as the type number matches.

Frequently Asked Questions

How often do I need to change the battery?

Most LiftMaster remote batteries last one to three years depending on how often you use the remote and which type of battery it is. If you use the remote several times a day, expect to change it once a year. If you use it once or twice a day, it may last two to three years. The battery will straightforward stop working one day—there is no warning.

Can I use a rechargeable battery in my LiftMaster remote?

Rechargeable batteries usually do not work well in garage door remotes because they have a lower voltage than disposable batteries and may not trigger the opener reliably. Stick with standard disposable batteries of the type printed on your remote.

What if I lose the screw when I open my remote?

If your remote has a screw and you lose it, you can temporarily hold the case closed with a small piece of tape while you test the new battery. For a permanent fix, take the remote to a hardware store and ask for a replacement screw of the same size—they usually cost less than a dollar and staff can match it by sight.

Why is my remote not working even with a new battery?

First, make sure the battery is inserted the correct direction and fully seated in the compartment. If it is, try a different new battery in case the first one was defective. If a second fresh battery does not work, the remote circuit board or button contacts may have failed, and you will need a replacement remote.

Can I buy a universal remote instead of a LiftMaster replacement?

Yes. Universal garage door remotes work with most LiftMaster openers and cost less than LiftMaster brand remotes. Your garage door installer or a hardware store can help you find one that matches your opener model.