Skip to content

How to Change Batteries on a Weiser Door Lock

This article is a collaborative effort, crafted and edited by a team of dedicated professionals.

Contributors: Muhammad Baballe Ahmad, Mehmet Cavas, Sudhir Chitnis, and Zhen-ya Liu.

✓ Verified & Tested Information

If you have a Weiser door lock that uses batteries, it’s important to know how to change them out when they die. Here’s a quick guide on how to do it.

Gather Your Materials

Changing the batteries on a Weiser door lock is a relatively simple process. Before you begin, you’ll need to gather your materials. You’ll need a new set of batteries, a Phillips-head screwdriver, and a flathead screwdriver. Once you have all your materials ready, you can begin the process of changing your Weiser door lock batteries.

Gather the new batteries

Before you embark on your task of replacing the batteries in your Weiser door lock, make sure to gather the new batteries necessary for the job. It is recommended to buy the same type and brand of batteries as were in use prior to their need for replacement. The two most common types are lithium-ion and alkaline, with voltage sizes ranging from 3V-9V and up. Do not mix battery types when replacing them – for example, do not replace four 3V lithium-ion batteries with four 5V alkaline batteries. Properly matching the replacement battery type is an important part of successfully completing this task.

Gather a Phillips head screwdriver

Gather together the items you will need to complete the job. In this case, you need only one tool – a Phillips head screwdriver of an appropriate size to fit the screws on the lock. You may find at least two different sizes of screw heads, so make sure you have the right one for the job. While it’s convenient to have a range of Phillips head screwdrivers, an adjustable one will cover nearly any type of application related to door hardware. If you don’t have such a tool on hand, these are available from most hardware stores and home centers at a reasonable price. Carefully gather your materials and select an area where you can perform the task without too much interruption or distraction.

Remove the Battery Cover

If you want to change the batteries on a Weiser door lock, the first step is to remove the battery cover. This will allow you access to the batteries and enable you to replace them. In this tutorial, we’ll show you how to remove the battery cover on a Weiser lock and what to do once you have it off.

Locate the battery cover

When it comes time to replace the batteries in a Weiser door lock, it is easy to locate and remove the battery cover. Located at the bottom of the device, inside a small hole, the battery cover can easily be found with careful observation. To protect against environmental damage, Weiser designs its locks with waterproofing features and this includes a waterproof lid that must be removed before accessing the batteries. It helps to take note of where other components are located as well, since many internal parts and screws may need to be repositioned when reassembling the lock.

Use the screwdriver to remove the screws

To change the batteries on a Weiser door lock, you will need a Phillips-head screwdriver and a new set of batteries. Begin by locating the battery cover on the back side of the lock. It is usually marked with a battery icon and can be easily removed with your fingers or a flat-blade screwdriver. Once the cover is off, use the screwdriver to remove the screws that secure the battery box in place. Carefully slide out the old batteries and insert two new AAA size (or equivalent) alkaline batteries. Make sure to check for polarity (positive vs negative) before replacing and screwing back in your battery box securely. Once all connections are secured, replace your battery cover and test it out!

Carefully remove the battery cover

Carefully remove the battery cover by pressing in on the top and bottom of the cover. If you are having difficulty removing the cover, you may need to use a small flathead screwdriver to gently pry it open. Once the cover is removed, take care not to tilt it too far as it may cause the batteries and other components to fall out.

Once opened, you should be able to see four LR20 alkaline batteries inside and will require replacing them with new ones. Carefully lift each cell out of its holder so that none of them are bent in any way as this could cause a short circuit when reassembling the parts together again. Take note of which direction each battery is facing before removing so that when installing new batteries, you can make sure they are placed back into their respective holders with correct polarity (positive – red/black, negative – silver/white).

Replace the Batteries

Changing batteries on a Weiser door lock is an important step in maintaining its security and keeping it functional. By replacing the batteries in a timely manner, you can avoid any issues with the lock not catching and potentially being locked out of your home. In this article, we’ll discuss how to replace the batteries on a Weiser door lock quickly and easily.

Remove the old batteries

It is important to always replace the batteries on your Weiser door lock in order to keep it operating properly. Some types of Weiser locks use an external power source, but most are powered by batteries. To replace the batteries, you will need a Phillips head screwdriver and a new set of batteries.

First, locate the battery compartment at the side of the lock handle panel. Carefully remove any screws that are holding it in place with a Phillips head screwdriver before gently pulling the compartment out. This should reveal the old batteries, which will need to be taken out by carefully removing any connecting wires or pins before lifting them up and out of the holder.

Once all of the old batteries have been removed, check them for obvious signs of damage such as corrosion or wear and tear. It is important to discard old batteries in a safe and responsible way – many local councils provide special recycling containers for this purpose. Now insert the new for fresh ones into their holders observing their positive and negative indicators if applicable. Make sure that all connections have been securely tucked back in once everything is safely connected again before putting back into place and replacing any screws necessary to hold it securely fixed back into position.

Insert the new batteries

Insert the new batteries into the battery door of your Weiser door lock. Start with the negative end first, making sure that all four batteries are facing in the right direction. The positive ends will have a small circular indentation on top; be sure that they’re facing upwards and aligned with the notches in the battery compartment itself.
Once you’ve inserted all of the batteries correctly, close up the battery door firmly until it clicks securely into place. Now connect any additional wires to your Weiser door lock, if applicable, and then press and hold down the factory reset button for approximately 10 seconds until you hear an audible sound – this indicates that your new batteries have been successfully installed. You can now test your change by activating a few key functions of your Weiser lock.

Check the orientation of the batteries

Before starting to replace your door lock batteries, you must first check the orientation of the batteries. This is important to remember as incorrect orientation can damage the circuitry and prevent your lock from functioning appropriately. All Weiser locks use either 4 AA or 4 C batteries; however, depending on the type of Weiser smart lock you have, the arrangement may be different.

For most Weiser locks with a 4-battery arrangement, the positive and negative terminals should each be connected to two opposing cells. Depending on the model of your smart lock, this may look like + – // + – or + – // – +, with some models requiring four or five cells in total. If your model uses removable battery covers at each end, it may help you easily orientate the batteries correctly before reassembling them into place. To avoid damaging your door lock circuitry and ensure that your batteries are replacements correctly so that you don’t encounter any problems later down the line!

Reassemble the Door Lock

Once you have successfully changed the batteries and reattached the battery cover, it is time to reassemble the door lock. Before you begin, make sure to check that the LED light on the keypad is illuminated, indicating that the new batteries are working correctly. Then, reattach the door lock’s exterior panel, ensuring that all screws are fully tightened. Now you’re ready to test it out!

Replace the battery cover

Once the old batteries have been removed, replace the battery cover by lining up the tabs on either side of the bottom of the battery cover into their respective slots in the base. Gently press down with your fingers until you hear a “click” sound. This indicates that the battery cover is securely in place. Check to make sure that all of the tabs are properly in their slots and that nothing is obstructing them from being fully inserted.

Secure the battery cover with the screws

Once the battery cover has been removed, slip the new batteries into place, making sure to maintain correct polarity. When the batteries are correctly in place, you can use a Phillips head screwdriver to secure the battery cover back onto the lock by replacing each of the two screws that were undoing in step two; tighten each one until it is firmly secured. It’s a good idea to test the lock with a key afterwards to make sure that power has been successfully restored and that all its functions are operating properly.

Test the Door Lock

When changing the batteries on your Weiser door lock, the first step is to test the lock. Making sure the lock is functioning properly is essential to ensure that the batteries are installed correctly. Additionally, it is important to test the batteries to ensure that they are fresh and providing the necessary power to the lock. Testing the door lock and batteries is the first step in changing your Weiser door lock.

Insert the key into the lock

Insert the key into the lock and turn it in a counterclockwise direction to the position marked “Unlock.” You will hear a click as you turn the key. Keep turning until the key is fully inserted. This will cause a small lip on the exterior of the door lock to droop, which indicates that it is unlocked. Make sure this is visible before proceeding to remove the battery casing by sliding off its outer shell. Slide your thumb over one side of the exposed battery casing and pull upwards gently until you can expose its contents. Be careful to not apply too much pressure so that you don’t damage any of the unit’s interior parts.

Turn the key to ensure the lock works

Turn the key all the way clockwise to the locked position and then all the way counterclockwise to unlock it. Ensure that both directions are working correctly, by repeating this a few times. If only one of the directions works, push in on the outside of the key until it locks back in and try again. The inner cylinder shape should be twisting on its own without prompting. If this is not happening, you may need to replace or clean off some of the internal parts.

How to Change Batteries on a Weiser Door LockCheckout this video:

Share this Article