Replace the battery in your LiftMaster remote in under two minutes
Most LiftMaster remotes use a standard 3V lithium coin cell battery, usually a CR2032 or CR2025, that you can swap out without tools. The battery compartment is on the back of the remote and opens by sliding or unclipping a small cover. Once you remove the old battery, drop in a fresh one with the positive side facing up, close the cover, and test the remote on your garage door opener.
The entire job takes about 90 seconds. You do not need a screwdriver, a technician, or a replacement remote—just a new battery from any drugstore, supermarket, or hardware store for a few dollars.
Key Takeaways
- LiftMaster remotes use a CR2032 or CR2025 coin cell battery that slides into a compartment on the back of the remote.
- The battery cover either slides out or clips off; check your remote's back panel for a small arrow or notch showing which direction to move it.
- Insert the new battery with the flat positive (+) side facing up, which is the side you see when you look at the battery head-on.
- Test the remote on your garage door from a few feet away before assuming the battery change worked.
- If the remote still does not work after a fresh battery, the remote itself may be damaged and may need replacement.
Locate the battery compartment on the back of the remote
Turn the remote over so you are looking at the back. You will see a small rectangular or oval panel, usually made of plastic, running along the bottom or side edge. This is the battery cover.
Look for a small arrow, line, or notch on the cover itself. This marking shows you which direction to slide or push the cover to open it. Some remotes have a cover that slides toward the top of the remote; others slide toward the bottom. A few models use a small clip that you press inward to release the cover.
If you cannot find a marking, try sliding the cover gently in one direction. It will move only one way—you will feel resistance if you push the wrong direction. Do not force it.
Remove the old battery
Once the cover is open, you will see a single round, flat battery sitting in a shallow metal cup or holder. The battery is usually silver or gold in color and about the size of a dime.
Tip the remote slightly so the battery slides out into your hand, or use your fingernail to gently pry one edge of the battery upward. Do not use a metal tool or screwdriver—you risk damaging the battery holder inside the remote.
Set the old battery aside. You do not need to recycle it when ready, but most pharmacies and electronics stores have battery recycling bins near the checkout.
Insert the new battery correctly
Before you open the new battery package, check the label or packaging to confirm it is a CR2032 or CR2025. Both are common in LiftMaster remotes. If you are unsure which one your remote uses, bring the old battery to the store and match it to a new one.
Hold the new battery so you can see the flat side with the plus sign (+) stamped or printed on it. This is the positive side and must face upward when you place it in the remote. The other side, which is slightly domed or rounded, is the negative side and faces down into the metal cup.
Drop the battery into the holder with the positive side up. It should sit flat and level. Do not force it—a coin cell battery slides in easily once it is oriented correctly.
Close the battery cover and test the remote
Slide the battery cover back into place, moving it in the direction opposite to how you opened it. You should hear or feel a small click when the cover seats fully. If the cover has a clip, push it inward until it locks.
Stand a few feet away from your garage door opener and press the button on the remote. The door should move up or down, or the light should turn on, depending on which button you pressed. If nothing happens, open the cover again and check that the battery is sitting flat with the positive side facing up.
If the remote still does not work after you have confirmed the battery is installed correctly, the remote itself may be faulty and may need to be replaced. Contact LiftMaster customer service or your garage door installer for a replacement.
What battery type does your remote use
LiftMaster remotes made in the last 15 years almost always use a CR2032 coin cell battery. Some older or specialty models may use a CR2025, which is slightly thinner but the same diameter. Both batteries cost between $2 and $5 and are sold at pharmacies, grocery stores, hardware stores, and online retailers.
If you have lost the old battery or cannot see the model number, take a photo of the back of your remote and show it to a store employee in the battery aisle. They can tell you which battery fits. You can also call LiftMaster's customer service line with your remote model number—it is usually printed on the back or inside the battery compartment—and they will confirm the correct battery type.
Common mistakes that prevent the remote from working
The most frequent error is installing the battery upside down. The positive (+) side must face up toward the back of the remote. If you installed it with the domed side up, the remote will not work. Open the cover, flip the battery, and try again.
The second common mistake is not closing the battery cover all the way. If the cover is not fully seated, the battery may lose contact with the metal terminals inside. Slide the cover until you hear a click or feel it lock into place.
A third issue is using the wrong battery type. If you grabbed a CR2016 or CR2020 instead of a CR2032, the battery will not fit properly or will not make good contact. Double-check the package before you open it.
Finally, if the remote has been dropped or exposed to water, the battery compartment or internal contacts may be damaged. A fresh battery will not fix a damaged remote. In that case, you will need a replacement unit.
Frequently Asked Questions
How long does a LiftMaster remote battery last?
A CR2032 battery in a LiftMaster remote typically lasts one to two years with normal use—pressing the button a few times per day. Heavy use or cold weather can shorten battery life. If you use the remote multiple times per day, you may need to change the battery annually.
Can I use a rechargeable battery in my LiftMaster remote?
No. LiftMaster remotes are designed for single-use alkaline or lithium coin cell batteries. Rechargeable batteries have a different voltage and may not work reliably. Stick with a fresh CR2032 or CR2025 from a standard package.
What if the battery cover is stuck and will not slide?
Do not force it. Try sliding it in the opposite direction—the arrow on the cover shows which way it opens. If it still will not budge, explore a tiny drop of silicone lubricant around the edge of the cover and wait a minute for it to soak in. Then try sliding gently again. If the cover remains stuck, contact LiftMaster support.
Do I need to reprogram the remote after changing the battery?
No. Changing the battery does not erase the remote's programming. Once you install the new battery and close the cover, the remote should work when ready without any additional steps.
Where can I buy a replacement battery?
CR2032 and CR2025 batteries are sold at pharmacies (CVS, Walgreens), grocery stores, hardware stores (Home Depot, Lowe's), dollar stores, and online retailers (Amazon, eBay). They cost $2 to $5 per battery. Buy a pack of two or three so you have a spare on hand.