Liftmaster garage keypad battery. Eager to hear more?

Does your garage door opener really need a backup battery?

Needing versus requiring is the FOCUS of this article. In other words, do you require or do you need a backup battery for your garage door opener? If you live in California, you require a backup battery. If you live anywhere else, you may think you do not need or require one, but you’d be wrong.

Why should you invest in a backup battery?

As of July 1, 2019, the state of California made it a requirement for newly sold or installed residential garage door openers to feature a backup battery. This requirement means all home builders, contractors, and other housing industry professionals must install backup battery systems.

Why? It began with horrible wildfires over the past few years and deaths that were the result of homeowners being trapped inside of garages, unable to lift garage doors that were not properly balanced. Had the door openers had electrical service at the time the call to evacuate came, many would have survived.

Such risks exist everywhere, however, and are anticipated to increase with climate change’s impact on rain, wind, and weather.

Keep in mind that a backup battery becomes is also vital if the only access to the garage is through the garage door, which is often the case with exterior garages found at apartment or condo high-rises.

Because of California’s mandate, though, many garage door opener manufacturers, like LiftMaster and Chamberlain, are expanding options for products with backup batteries integrated with the motor housing or attached next to the motor.

What’s a balanced garage door?

We just mentioned the problems faced by people without electricity and with improperly balanced garage doors. An electric garage door opener is designed to replace manual lifting of the door, whether there is a power outage or not.

It might shock you to learn that a metal garage door typically weighs 125 lb. / 57 kg for a single door (9 x 7 ft.) or 250 lb. / 114 kg for a double door (16 x 7 ft.). Solid wood doors are far heavier! The total weight includes the door sections and hardware such as rollers, hinges, Windows, and reinforcement struts.

The door’s spring system acts as a counterbalance to the weight, reducing it to no more than 8 to 10 lb. (3 to 5 kg) and allowing anyone to lift a door quickly.

So, how can you determine if your garage door is balanced correctly? Follow these simple steps:

  • Disengage the garage door opener by pulling down on the emergency release handle
  • Grab the lift handle and slowly pull up on the door
  • Should you strain while doing this, you’ve found the problem

Contact us right away for us to straighten everything out. Perform this test every two months, and even more frequently when you use your garage door more than five times a day.

How to Change Battery in LiftMaster Garage Door Opener Keypad – Quick steps

You are clicking away on the keypad, but your garage door isn’t opening. Oh, isn’t that frustrating? While this could indicate an operational problem, more often than not, it is quite simple! Remember the popular phrase? Sometimes, the solution is the easiest one? So, it may just be that the batteries in your door opener have died and need to be replaced.

Now comes the real question. What’s the process for LiftMaster garage door opener battery replacement? Let’s quickly go through the steps.

How to change battery in LiftMaster garage door opener keypad

Things to keep in mind

  • If you don’t know where andhow to dispose of old batteries, check the Internet for recycling centers in your locality.
  • If you are unsure about the type of batteries you need, first remove the old batteries, check them, and purchase new ones accordingly.
  • The polarities are indicated in the battery slots. Check and insert the new batteries based on these indications.

Batteries usually last for around a year, and the keypad comes with batteries. Only once they have worn out will you need to buy new ones.

What if it still doesn’t work?

Even after the LiftMaster garage door opener battery change, if the keypad doesn’t work, it is time to troubleshoot. Following are a few possible scenarios:

  • It needs to be cleaned: Grime and dust can cause the keys to stick and malfunction. So, clean it with a soft cloth and see if that helps.
  • The wires are loose: This is fairly simple. Check for frayed or loose wires and see if that’s the problem.
  • Its PIN has reset: Sometimes, the keypad gets locked, and the PIN is reset when the wrong code is entered. Maybe that’s what happened? Take a look!
  • It needs a reboot: Many people underestimate the power of a good reboot. Clearing its memory and restarting it can actually make it work!
  • The sensor is failing: In this case, you will need a new sensor.
  • The springs have worn out: Broken springs need an immediate replacement.

Replacing the battery in a LiftMaster garage door opener keypad is very easy, but if that doesn’t work, you need professional help. This is especially true for cases such as failed sensors and broken springs. Of course, it is possible to take care of it yourself. But, unless you are a professional, we would not encourage it. One wrong move can make matters worse.

We hope this guide has provided the solution to your questions. If it hasn’t, we really recommend professional assistance. Without personally seeing the problem, giving an exact answer can be difficult. The steps above are generic.

Please feel to comment and let us know if you have any suggestions. We are always happy to enrich our articles and guide to improve user experience.

Simple Step-by-Step Instruction: How to Change Battery on Liftmaster Remote

Before diving into the steps, let’s check out which tools you need for this task!

  • A screwdriver, a small knife, or a flat screwdriver blade
  • Replacement battery (3 V CR2032)
  • Safety goggles
  • Gloves

In case you are wondering what type of battery is 3V CR2032 and how you can recognize it, do not worry!

CR2032 is a lithium battery, also known as a coin or button cell, commonly used in several smaller devices and medical equipment, such as electrical thermometers, toys, watches, and remotes, among others. You can purchase it online on Amazon or in-store.

Remember that although all CR2032 batteries are the same or similar, their quality depends on the manufacturer because they are not created equal. Unfortunately, not every manufacturer has the same dedication to quality.

Also, we recommend you use CR2032 with your remote and not a different battery (even though it might fit in the compartment) because the voltage might be different, and it might pose a risk of fire, explosion, or chemical burn.

Before starting this project, ensure that you have safety goggles and gloves for your protection.

Step 1: Find a Small Notch On the Long Side OF the Remote

Some Liftmaster remotes have a holder, which you need to remove and can also use to open the battery if you do not have a flat-head screwdriver at hand. Then you will inspect the long side of the remote control and locate a small notch.

liftmaster, garage, keypad, battery

Step 2: Open the Battery

Using a small knife or a screwdriver blade pry open the battery case to access the battery. If you use a different remote, you can also slide the cover below the remote control button, pressing it firmly.

If you notice that your remote has screws on the back of the case, you will need to remove them using an extra-small screwdriver and then open the case. This type of screwdriver often comes in glasses repair kits.

Ultimately, if your remote is different and you cannot open it following these instructions, you need to refer to the manufacturer’s manual

Step 3: Remove the Battery

When you open it, you will hear a clicking sound. Then, please take out your old battery, slowly ensuring that you do not damage the small motherboard and the compartment for the cell when pulling it from its spot.

Ensure that you dispose of it correctly because lithium batteries are hazardous waste. Therefore, please do not throw them into your ordinary trash bin or even the recycling bin.

Step 4: Insert the Replacement Battery

Put the new battery in the same orientation or its positive side up Ultimately, insert the battery to get it to the position the previous one had, which you took out.

How Can I Replace The Liftmaster Keypad Battery?

Keyless entry methods for a garage door are definitely a novelty and a game changer in home security, guaranteeing easy but safe access to your garage. We all hate using keys because we often forget or lose them.

So, using a code to enter your garage instead of keys makes it much more manageable. However, the battery in your Liftmaster Keypad cannot last forever, and you will eventually have to replace it, primarily if your door is not functioning well.

Of course, your door can fail to function because of the faulty remote or its dead battery, so you need to troubleshoot your remote’s battery using the steps mentioned above. On the other hand, there are several other reasons why your keypad may not be working.

Your keypad may malfunction because its keys are sticking due to the accumulation of dirt and grime. You can easily remove this problem by cleaning the keypad using a regular appliance cleaner and a soft cloth.

Another issue that might arise and disrupt the function of your keypad is frayed and loose wires. For example, if you are pressing the buttons on the keypad and it is not reacting, the problem might be caused by loose cables.

Inspect your keypad; if you notice loose wires, try reconnecting them.

Here are Step-by-Step Instructions!

Step 1: Lift the Cover of the Keypad

Remove the cover of your keypad and check out what is under the number pad. Usually, there is a compartment where you put your battery. However, if you do not see it or are unsure whether that is the right slot, find the manufacturer’s manual.

Step 2: Change the Battery

After you slide the cover of the battery’s compartment, access the batteries by carefully removing the old ones and disposing of them. Then, insert the new one into the slot. Always make sure that the polarities are lined up correctly.

Step 3: Test it

For these types of keypads, we usually use 9 V alkaline batteries. Once you have finished, test the keypad.

If the keypad is still not working, maybe you have inserted the battery incorrectly, or perhaps the keypad is faulty. You can also try to reboot the system or clear the memory, especially if you are not getting any reaction from the keypad.

To reboot it, unplug the system and leave it like that for 5 minutes before plugging it back in. Then, try to use the keypad to test it!


Changing batteries is one of those tasks that are pretty simple, but for some reason, we all dread doing it. However, if you follow the steps in this article, replacing the battery on the Liftmaster remote will be like taking candy from a baby!

Ultimately, if you have tried the steps mentioned above and are still experiencing issues with your remote or your keypad, that is your sign to call a professional.

Have you tried replacing the battery for your Liftmaster remote before? Share your experience! If you have questions, do not be a stranger and ask away!

liftmaster, garage, keypad, battery

What’s My LiftMaster Remote Compatibility?

Find your garage door opener’s Learn Button to determine what model of remote control is compatible. The Learn Button is located on either the back or the right side of the opener, near the hanging antenna wire.

If you are using the myQ® Control Panel G888LM please follow the programming instructions located: LiftMaster Model 888LM myQ® Control Panel Instructions

If your garage door opener has a Yellow Learn Button, it utilizes Security 2.0 technology. Use the chart below to find your remote or keyless entry’s model number.

If your garage door opener has a Purple Learn Button, it utilizes Security 315Mhz technology. You will see a () symbol on all of your remote devices. Use the chart below to find your remote or keyless entry’s model number.

How Do I Erase the Remote Control From the LiftMaster Garage Door Opener’s Memory?

There are a few instances that the memory of your opener would need to be erased.

  • An unwanted remote is activating your garage door opener
  • One remote button is activating multiple doors
  • Your remote control is lost or has been stolen
  • Purchased a new home and want to set garage door opener back to factory default

NOTE: Erasing the memory will remove ALL remote controls and keyless entry codes from the garage door opener.

Begin by locating the LEARN button on the back or side of the motor unit; generally this is on the same side as the antenna wire. You may need to remove a light lens cover or open a control panel to gain access. The LEARN button may be green, orange, red, purple or yellow, and will have a small LED next to it.

Note: Erasing the memory on your opener will clear out any working remotes or keyless entries. You will need to reprogram them.

Erase all remote controls and keyless entries

Units with a green, orange, red, purple or yellow LEARN button:

  • Press and hold the LEARN button on the garage door opener until the LED next to the button goes out (approximately 6 seconds). All remote controls and keypads have been erased.

Erase all remote controls, keyless entries and myQ® devices from the garage door opener

  • Press and hold the LEARN button on garage door opener until the Learn LED goes out (approximately 6 seconds).
  • Immediately press and hold the LEARN button again until the Learn LED goes out. All codes are now erased. Reprogram any accessory you wish to use.

Why is My LiftMaster Garage Door Opener Beeping?

Premium LiftMaster garage door openers featuring a battery backup and/or Wi-Fi connectivity have a buzzer alert that makes a beeping sound. You will hear a beep to confirm a step is performed successfully or you will hear a beep to diagnose an issue. The number of beeps heard will depend on the type of garage door opener and the function you are performing on the garage door opener.

If you have a garage door opener with a battery backup and it is…

  • Beeping every 2 seconds
  • This means the unit is operating under battery power. The battery LED will display solid orange.
  • Ensure the power is restored throughout the house. If power is restored but the LED is still orange, then test the electrical outlet by plugging in a different device.
  • Beeping every 30 seconds
  • If the battery LED is flashing orange it means the battery is low.
  • Test the electrical outlet by plugging in a different device. If there is power and the LED does not change to a flashing green, then replace the battery.
  • Beeping every 30 seconds
  • If the battery LED is solid red, then the battery is dead and cannot recharge.
  • Replace the battery.

Note: To temporarily stop the beeping while waiting on a new battery, unplug the unit and disconnect the battery. After disconnecting the battery, plug the unit back and the beeping will stop.

Useful information about the backup battery

The battery is designed to run 20 full cycles on a full charge, which equates to about 1.2 days of normal operation. If the power is not restored by this time, the battery needs to be unplugged from the motor. If you do not disconnect the battery, it will drain too low and will not recharge. The battery would then need to be replaced.

  • It is a 12-volt rechargeable battery with 4.5 AH (amp hours).
  • The weight of the battery is 4.5 lbs.
  • The backup battery is an accessory and has a one-year warranty from the date of purchase.

If your garage door opener has Sec2.0

  • You will hear 1 beep when the garage door opener is placed into limit and force Learn mode. You will also hear 1 beep when pressing the up and down arrows.
  • Constant beeping indicates the door is closing unattendedly.
  • Garage door openers using a timer-to-close control panel will beep for 8 seconds before an open garage door closes. It will continue to beep until the door is closed.

If your garage door opener has Wi-Fi

In addition to the beeps heard from the Sec2.0 garage door openers, the Wi-Fi Garage Door Opener will also beep under the following condition:

  • 1 beep: When GDO is placed into Wi-Fi Mode
  • 1 continuous beep: While in Wi-Fi mode, the GDO is attempting to connect to router
  • 2 beeps: While in Wi-Fi mode, the GDO is attempting to connect to myQ® Server
  • 3 slow beeps: While in Wi-Fi mode, the GDO connects to network
  • 6 fast beeps: While in Wi-Fi mode, the GDO fails to connect to server
  • 3 fast beeps: Confirmation of Erase of Wi-Fi from GDO

How Do I Find My Learn Button on My Garage Door Opener?

The Learn button on your garage door opener is located above the antenna wire that hangs from the motor head or it may also be under a light cover. The Learn button will be either green, red/orange, purple or yellow.

The Learn button has two functions: One is to program accessories to the opener; the other is the clear the memory of the opener. Clearing the memory on a unit will erase all of the accessories that are programmed to the opener.

If your system has a green, red/orange or purple Learn button

  • Press and hold the Learn button. The LED will turn on. After 6 seconds the LED will turn off which will clear out the handheld remote controls and keyless entry.

If your system has a yellow Learn button:

To clear the memory: This action must be completed two times to remove myQ® accessories and door controls.

  • Press and hold the Learn button. The LED will turn on. After 6 seconds the LED will turn off which will clear out only the handheld remote controls and keyless entry.
  • Within 3 seconds of the LED turning off, press and hold the Learn button for 6 seconds. When the LED turns off a 2nd time, the myQ® accessories and door controls will be removed from the garage door opener.
  • Reprogram devices if necessary.
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