What Happens If Smart Lock Battery Dies? Ways To Address This Issue

Recently, many people have switched typical locks to smart locks for more secure and convenient use. With smart locks, there’s no more searching your pockets, leaving your keys inside, or waiting for your family to open the door.

They seem far better than traditional key locks. Their only downside may be that they run on batteries. So, what happens if the smart lock battery dies?

It’s best to replace the battery when you receive low battery notifications. But if you’re not ready, there are still some alternative ways to deal with this problem.

For a more detailed answer, let’s follow our blog post below!

What Happens If Smart Lock Battery Dies

It seems far better than traditional locks.

What Happens If Smart Lock Battery Dies?

All smart locks need batteries to power the wireless chips, LED lights, and the motor that activates the locking/unlocking of the door. Depending on the lock, the batteries can last for a few months.

Most of the time, you will know your device battery is getting low before it actually dies. Almost all smart locks feature low battery indicators, which will warn you ahead of time. They could be audio signal alerts, colored lights.

Slow response time is also another sign that the batteries are dying. It’s easy to recognize since the lock will require you to try many times to gain entry!

So, what to do when you’re in this situation?

Change The Battery

The software-based feature management may inform you when the battery is low, but the best solution is to replace it as soon as you get one of these alerts.

The locks can come in various specifications, but replacing the battery is quite the same. It’s hidden behind an interior cover, and you’ll need a screwdriver to get to the battery compartment.

Most smart locks come equipped with 9-volt alkaline batteries. The Trilogy PDL7100, on the other hand, uses four C batteries.

What Happens If Smart Lock Battery Dies

It’s best to replace them!

When the batteries die, remove, replace, and make sure it’s securely fastened in the container. If you’re using a 9-volt battery, the snap connectors should be firmly attached to the tips.

Check if the battery is in the right position and secure the cover. Also, keep an eye out for any wires that may protrude from the system. Tuck them in their right place and close the lid.

Watch this video if you need a thorough guide:

Backup Mobile Operations

Most digital door locks have a mobile app that allows users to access the system from their smartphones. If the power goes out, you can use your phone to turn off the entire system. Then you unlock the door and enter the locked area.

You’ll get a manual with complete instructions on operating your door locks when installing the system and the software. Read it carefully to know what to do when the batteries die, or you can’t gain access into your home!

Manual Key

You can also execute a manual key override as the third option. It’s a typical method of gaining entry to your home or workplace when the batteries die completely, or the user code is not recognized.

Using the manual override may vary depending on the brand models. You can consult your user handbook for specific instructions to do this task.

To unlock the Schlage FE575, for example, you must insert the key and rotate it 270 degrees. Then turn the doorknob or lever to obtain entry to the locked area.

Emergency Lock Override

Not only manual key override, but some models also provide an emergency lock override. It helps turn off the keypad completely, allowing you to unlock the device.

The process for this method may differ based on the model, so it’s advisable to review the user handbook for your smart lock.

Most models require you to remove the cover and rotate the slot on the mounting plate to the lockout position with a screwdriver.

The emergency lock override may need either some lock repairs or the replacement of the entire system, so it should only be used as a last resort!

Why Do Your Smart Locks Drain Battery?

You may wonder why some locks drain batteries more quickly than others. Here are the reasons.

Communication Protocols

Smart locks use communication protocols to connect to your smartphone or home system. Three types of communication protocols include Wi-fi, Bluetooth, and Z-Ware, which use different amounts of power.

What Happens If Smart Lock Battery Dies

It depends on the communication protocols.

Wi-Fi: You can use your phone to connect to the lock wherever you are, meaning you can operate it remotely. This functionality, however, requires greater power use. Wi-Fi-based locks use the most power of any type. The average battery life in Wi-fi locks is 2 to 4 months.

Bluetooth: You must stay within 300 feet of the lock to connect with it. Bluetooth smart locks operate at a low frequency and consume little power, so the batteries can last for 10 to 12 months before they need replacing.

Z-wave: Z-wave combines the features of Wi-Fi and Bluetooth into a single package. This technology enables remote connections but utilizes only a little amount of power. The batteries in Z-Wave locks last from 12 to 18 months.

Batteries Quality

The quality of the batteries affects how fast your smart lock drains the battery.

High-quality brands, such as Duracell or Energizer, are long-lasting and do not discharge quickly. A cheap, no-name brand, on the other hand, may degrade and deplete quickly.

Frequency of Use

The frequency you lock and unlock the doors surely influences how quickly the smart lock consumes its battery.

Whenever you activate the smart lock, some power is used to retract or activate the deadbolt. The more you use, the faster the battery drains!


What Happens If Smart Lock Battery Dies

The temperature also affects the power 

Temperature variations can somehow affect how quickly the battery drains when your smart lock is in use. Some will drain faster in cold conditions, while others will drain quickly in hot weather. Before purchasing batteries, you had better consider its temperature sensitivity.


Now that you know what to do when your smart lock batteries die!

In case you’re not ready to change the batteries, you can still utilize the mobile backup operations or manual key to gain access into the home. If there’s no way out, the emergency lock override can come as the final resort. Good luck!

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