What happens if a smart lock battery dies?

With the technology available to us today, we can efficiently add convenience to all areas of our lives – our home security is not left out. You no longer have to search your pockets or purse for your set of keys before you gain access to your home.

Smart locks are way more reliable; it is now possible to enter your home by swiping a specially designed card or clicking a button. You can open your door lock even without reaching your front porch. Opting for the smart lock helps to ensure the safety of your home or business, and replaces the need to keep up with keys that can be misplaced or stolen at any time.

However, at some points, a few conditions may be attached to this convenience. If you do not run regular maintenance checks, glitches may occur. As with every battery-equipped device, regardless of how reliable they are, eventually, the battery dies. 

This is the most common problem, so what happens if a smart lock battery dies? There are a few things you can do to get your system working again.

What happens if a smart lock battery dies?

Before even getting to this stage, you should be aware of your device battery getting low since most smart locks come with a low battery indicator to give you alerts in advance. 

The indicator could be colored light, audio signal alert, or both. Asides from these, you get other signs of low battery in the system with response time, the lock requiring multiple attempts before it opens. Your software-based feature management may alert you when the battery is low, but the best option is to replace them immediately you get these alerts.

Let’s see some solution which solves this problem:

Solution 1:

When your smart locks indicate that you have a low battery (watch video below), the first solution that comes to your mind is to replace the battery in the smart lock. The locks might vary with specifications, but replacing the battery is almost the same for most. It is contained within an inside cover, and you can gain access to the battery compartment using a screwdriver.

Most smart locks use a 9-volt alkaline battery. Trilogy PDL7100, however, utilizes four C batteries. When the battery dies, remove, replace, and ensure it is firmly secure in the compartment. For a 9-volt battery, make sure you firmly apply snap connectors to the battery tips. 

Be sure the battery is set in the right place and fix the cover. Also, watch out for those wires that could be protruding out of the system. Tuck them in their proper position and tighten down the lid.

Solution 2:

Like most, your digital door lock may offer mobile app connections to allow you to access the system from your mobile phone. So when you discover that the power in your door lock is down, you can turn off the entire system using your phone. Then you can unlock the door and gain access to the locked area. 

While installing the software and the system, you get a manual containing detailed information on how to use it relating to your smart door lock. Ensure to read it thoroughly to know what to do when you are without power, your battery dies, and you cannot find a way into your home. 

Solution 3:

The third option you can perform a manual key override. You have a manual key override at your disposal. This is the standard way you will gain access to your home or workplace when the battery dies entirely, or the valid user code is unrecognized. 

Just like the first solution, the way you perform the manual override varies depending on your brand model. You may need the help of your user guide for accurate instructions to carry this out. 

For instance, Schlage FE575 will require you to insert the key and rotate 270 degrees to unlock the device. After this, turn the lever or doorknob to gain access to the locked area. Also, watch this video:

Solution 4:

While your system may feature a manual key override, some smart lock models have emergency lock override. This one disables the keypad entirely and allows you to unlock the device. For this method, the process may vary depending on the model. So, to go about this solution, you also need to consult the user manual of your smart lock for proper guidance. 

For most models, to override the emergency lock, you will remove the lock’s cover, then using a screwdriver, rotate the small slot on the mounting plate to the lockout position. After using the key to retract or extend the lock, the emergency lock override can be considered as a last resort. 

However, using this option may mean that you will either need to do some repairs on your smart lock or replace the entire system.


The advantage to all these is that today’s keyless locks are made to use up only a minimal amount of battery peruse. This reduces the occurrence of a low battery in the system. Most systems may not need battery replacements for about 3 to 5 years.

The smart locks are exceptionally reliable, yet there are still possibilities of the battery getting low. But, we’ve given a few tips on what you can do if your smart lock battery dies, so you never have to worry about being locked out of your house due to battery failure.

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