How Long Do Batteries Last In Smart Locks

How Long Do Batteries Last In Smart Locks?

Smart locks are quickly becoming one of the most innovative products in home security today. These consumer-level devices make it possible for small businesses and homeowners to discreetly control access to their homes. Smart locks come with a wide range of features, from advanced keyless entry systems that allow users to unlock the door with a smartphone app or an RFID card, to physical keypads that give users a code every time they enter through your front door. And this is just scratching the surface of all the possibilities that smart locks provide.

How long do batteries last in a smart lock? If you are thinking of purchasing one, then it is vital that you know how long batteries last, because that makes a difference in the type of product you get. This will be particularly important if you want to design an installation lock system so it must be on when your tenant arrives and off when he or she leaves. Let’s take a look at the different types of batteries used in the best-selling smart locks out there, and how long they last.

Here Is A Short Answer To How Long Smart Locks Batteries Last:

In general, most smart locks will operate on a set of four AA batteries for between 6-12 months. This can vary depending on the exact model of your lock and a number of other factors. For instance, if your smart lock uses Bluetooth or Wi-Fi, then it will have to send and receive data more frequently and therefore drain its batteries faster than a lock that only has a built-in keypad. Similarly, proximity-based locks that require constant communication with your smartphone will also use up their battery life more quickly than those that don’t.

The average user will access their smart lock about five times per day (as per our own research). This means that even with a battery life of six months, you’re still going to be changing your batteries once every three years or so.

Smart Locks With Long-Lasting Batteries

These are some of the best smart locks with long lasting batteries.

1. Schlage Smart Locks

Schlage offers some of the best smart locks on the market, and their batteries last longer than most. Schlage Touchscreen Deadbolt. This model uses four AA batteries, which are rated to last for about one year.

This lock is designed for the convenience of consumer: it uses an illuminated touchscreen to allow keyless entry and doesn’t require a hub. Schlage Connects Deadbolt along with the Z-Wave protocol, which connects your lock to Mobile phone. This model comes with a rechargeable battery pack and a micro-USB charging port. It lasts for up to a year without needing to be recharged and gives battery a better life.

When the batteries do eventually die, the touch screen will start blinking red and you’ll get an alert on your phone via the Schlage app.

2. August Smart Locks

some of the most popular smart locks require you to replace the batteries every few months, which is annoying and can get expensive over time. If you want to avoid that hassle, here is one of the best smart lock that have long-lasting batteries.

As long as you remember to lock it at night before going to bed, this smart lock will last for up to a year on one charge. It also has four backup keys in case your batteries wear out too quickly and you need to use them right away. With its built-in WiFi capabilities, this lock connects directly with your smartphone so you can track when people come and go from your home, and it extends the battery life along with it.

August Smart Lock has just become smarter and more convenient as it has a lithium battery (CR2) that you can find at your local store, and it’s easy to change. Best of all? You don’t have to take the lock off your door or do anything else complicated—the battery compartment is accessible from the exterior of your door.

3. Kwikset Smart Locks

The Kwikset Kevo lock may be well-known for its visual appeal and easy installation, but it’s also easy on batteries. The included CR2 battery can last up to two years with normal use, and if you happen to forget about your battery replacement schedule (hey, we all do it!), Kevo’s low battery indicator light will give you enough notice that it’s time to swap in a new one.

Kwikset’s other smart lock offerings provide similar long-lasting battery power: the Kwikset Obsidian uses just one CR123A lithium cell and operates for up to a year before needing a replacement; the Kwikset SmartCode 916 uses four AA batteries that can last up to two years before needing a swap.

4. Yale Smart Locks

Don’t worry about changing the batteries in your Yale Smart Lock every six months. One of the most exciting features of our smart locks is that they run on inexpensive AA batteries (the same ones you probably use in your TV remote or to power devices like a Wii controller or an Xbox). These are easy to find at any store and are a great option for their reliability, affordability and the fact that they can last for years—even when used to power a high-functioning device like a smart lock.

In fact, you should expect Yale Smart Lock batteries to last for three years or more. We tested them extensively so we could create a product that doesn’t need its batteries changed as often as many other devices do. The only thing you have to do is remember to switch them out now and then, but we’ve made that easy, too. The app will send you a notification telling you the batteries are running low and need replacement.

In addition to saving your money on batteries, it’s also good for the environment. Batteries contain hazardous chemicals and materials that can leach into the soil and water table if they’re not properly disposed of at an environmental facility.

How Smart Locks Consume Battery Power

When you think of a smart lock, you might picture a sleek, modern look and the ability to unlock your door with just a few taps on your smartphone. While these locks are great for convenience and security, they can also be power guzzlers. Here’re the different communication protocols which consume battery.

1. Locks That Work With Bluetooth

One major culprit that drains battery life from smart locks is the Bluetooth connection between the lock and your phone. Because this connection must always be available, it’s constantly running in the background even when you’re not using it, which makes it a significant source of power consumption for your device. Fortunately, there are some things you can do to lessen the impact on battery life:

  • Make sure that your lock is as close as possible to your device; this will minimize interference with other devices in the area.
  • Open only one app at a time while using Bluetooth features on both devices; otherwise, your phone might try to open multiple apps simultaneously which can drain additional battery power and cause problems with connectivity.
  • Turn off Bluetooth when you’re not using it by going into Settings > Bluetooth or Control Center (if available).
  • Turn off Background App Refresh if possible.

2. Locks That Work With Z-Wave

If you’re interested in smart locks, you might already have a Z-Wave hub. But it’s important to understand what happens when you use your Z-Wave lock on a daily basis.

A Z-Wave lock typically consumes around 2 watts of power when it is in use. That means it will consume about 20-watt hours of energy for each 10 hours of usage. This is about the same amount of energy that a small lamp would consume over the course of 10 hours (assuming a CFL or LED bulb is used).

So, if you use your Z-Wave lock eight times a day, you should expect it to consume about 150-watt hours of energy per day (20 x 8). That works out to around 5 kilowatt hours per month and 60 kilowatt hours per year. At 12 cents per kilowatt hour, the yearly cost to operate a Z-Wave lock would be $7.20 ($0.12 x 60).

Keep in mind that this is just an estimate, and the actual amount may vary slightly up or down depending on factors like the make and model of your smart lock and how often you use it.

3. Locks That Work With Wi-Fi

Smart locks that connect to Wi-Fi consume more battery than those that don’t. These locks use a lot of power in order to communicate with your Wi-Fi router and therefore need to be recharged or replaced more frequently. Battery life can vary from one brand to another, but you should expect to recharge or replace the battery about once a year if you want it to continue working properly.

Frequently Asked Questions(FAQs)

1. Can I Charge My Smart Lock?

The answer is “no”: You cannot charge your smart lock. Smart locks are electronic door locks that are designed to be powered by batteries. They’re not supposed to be plugged into a power source.

2. Can I Plug My Smart Lock Into A Wall Outlet?

The answer is that it depends on the specific lock. Some smart locks use batteries, while others draw power through the existing wiring in your door. If you’re using a battery-powered smart lock, then yes, you can plug it into a wall outlet to give it a charge.

However, if you have a smart lock that draws power from your home’s existing wiring, then technically speaking you can’t plug your smart lock into a wall outlet.

3. How Do I Know If My Smart Lock Battery Is Low?

It’s easy to know when your smart lock battery is low. Most smart locks will alert you when it detects a low battery, so you’ll have the chance to change it before it runs out completely. Smart locks like the August Smart Lock, Schlage Camelot, and Yale Assure SL all use an LED light or indicator on the lock itself to let you know when the batteries are running low.


Smart locks are wonderful but needing to replace batteries on a regular basis can make them less fun to possess. As a result, you should select a model that ensures maximum energy efficiency.

Even so, while purchasing smart locks, you should consider issues other than efficiency. You should look for a smart/electronic lock that provides a good blend of functionality, durability, and cost.

I hope this article helped you in every way possible while buying new smart lock for your use!

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