Step-by-Step Guide: Effortlessly Replacing Your Nest Thermostat Battery

As the seasons change, so do our heating and cooling needs. And while the Nest Thermostat is a convenient and energy-efficient solution, even the most advanced technology requires maintenance from time to time. One important aspect of Nest maintenance is changing the thermostat battery.

Failure to do so can lead to unexpected shutdowns and inconvenience. But don’t worry, changing the Nest Thermostat battery is a simple process that can be accomplished in just a few easy steps. In this blog, we’ll guide you through the process, step-by-step, to ensure that your Nest Thermostat is running smoothly and efficiently all year round.

Let’s get started!

Check Battery Status

If you’re wondering how to change the battery in a Nest thermostat, don’t worry, it’s a fairly simple process. But before you go ahead with changing it, it’s important to check the battery status first. To do this, go to the main menu on your Nest thermostat and select “Settings”.

Scroll down to “Technical Info” and then select “Power”. Here, you can check the battery voltage to see if it’s running low. If it is, the “Battery Voltage” reading will be in red.

If this is the case, it’s time to replace the battery. Replacing the battery is a straightforward process. First, turn off your Nest thermostat by selecting “Settings” and then “System Off”.

Then, remove the thermostat from its mounting plate and locate the battery compartment on the back. Open the compartment by sliding it downwards, and remove the old battery. Replace it with a brand new AA battery, making sure to align the positive and negative ends correctly.

Finally, slide the battery compartment back in and reattach the thermostat to the mounting plate. That’s it, you’ve successfully changed the battery on your Nest thermostat.

View battery level on the thermostat’s display

If you want to keep your thermostat running smoothly, it’s important to regularly check the battery level. Luckily, most smart thermostats have a feature that lets you do just that. By simply navigating to the device’s settings, you can easily view the battery status on the thermostat’s display.

This small but important feature can save you from unexpected temperature changes or other pesky interruptions in your comfort. Plus, keeping the battery level in check can help extend the lifespan of your device and ensure it’s always up to date with the latest features. So, next time you’re adjusting the temperature on your thermostat, take a moment to check the battery status and keep your home running smoothly.

how to change battery in a nest thermostat

Check battery status in the Nest app

If you’re wondering how to check the battery status of your Nest device, it’s easy to do so in the Nest app. All you need to do is open the app and select the device you want to check. From there, you’ll be able to see the device’s battery status.

If you notice that the battery is running low, you can take action by charging your device or replacing the batteries if necessary. Keeping your device running on a fresh battery will ensure that it continues to function properly and provide you with the peace of mind that your home is secure. So if you have Nest devices in your home, make sure to check their battery status regularly to avoid any unexpected disruptions in their service.

Remove the Cover

If you’re wondering how to change the battery in your Nest thermostat, the first step is to remove the cover. Turn off the power to your thermostat before you begin, as a safety precaution. Then, gently pull the cover away from the base.

You may need to use a small tool, such as a screwdriver or a plastic spatula, to help pry the cover off. Be careful not to damage the thermostat or any of its components. Once the cover is removed, you’ll be able to see the battery compartment.

Most Nest thermostats use two AA batteries. Carefully remove the old batteries and replace them with fresh ones. Make sure to insert them correctly, following the instructions on the battery compartment.

Once the new batteries are in place, snap the cover back onto the base. Power your thermostat back on, and you’re good to go! Remember, it’s important to replace your Nest’s batteries as soon as you begin to notice a decrease in performance or if your thermostat displays a low battery warning.

Turn off the power or the circuit breaker to the thermostat

When it comes to working on your thermostat, safety should always come first. To ensure that there is no electrical current running through the device, turn off the power or circuit breaker to the thermostat. Once this is done, you’ll be able to move onto the next step of removing the cover safely.

Removing the cover is essential, as it will allow you to access the inner workings of the thermostat. Typically, the cover will pop off when you apply gentle pressure with a flat head screwdriver or your fingers. However, be mindful when using tools and be sure not to damage the device or inadvertently touch any exposed wires.

Overall, taking a cautious and methodical approach to working on your thermostat will ensure your safety and the longevity of your device.

Remove the thermostat display from its base

When it’s time to remove the thermostat display from its base, the first step is to remove the cover. The cover usually snaps onto the base, so you may need to use a small flathead screwdriver to gently pry the cover off. It’s essential to be careful not to damage the cover as you remove it.

Once the cover is removed, you’ll see the thermostat’s display and the base’s inner workings. At this point, you’re ready to remove the display itself. You can do this by carefully pulling the display away from the base.

Be gentle to avoid damaging any wires connecting the display to the base. With some thermostats, you’ll need to press a release button on the base to release the display. Overall, removing the cover is the first step in removing the thermostat display from its base, and it’s an essential step that requires patience and attention to detail.

Replace the Battery

If you’re wondering how to change the battery in a Nest thermostat, don’t worry, it’s a pretty simple process. First, you need to locate your Nest thermostat’s battery slot, which is typically located at the back of the device. You can use a screwdriver to remove the cover and expose the battery compartment.

Once you’ve done that, carefully take out the old battery and replace it with a new one. Make sure you position it correctly before putting the cover back in place. It’s important to note that Nest thermostats use rechargeable lithium-ion batteries, so you’ll want to avoid using alkaline batteries.

This is because alkaline batteries can damage your thermostat’s battery frame over time, causing it to malfunction. By replacing your Nest thermostat’s battery regularly, you can ensure that it continues to function smoothly and efficiently.

Remove the old battery

Replacing the battery of a device is often a necessary task to keep it running smoothly. First, you must remove the old battery from the device. This may involve unscrewing any covers or panels to access the battery compartment.

Be sure to turn off the device and unplug it before attempting to remove the battery. Once you have accessed the battery, check to see if it is held in place by any clips or screws. You may need a screwdriver or other tool to loosen any screws holding the battery in place.

Gently remove the battery from its compartment, being mindful of any wires or cables that may be attached to it. Finally, dispose of the old battery properly in accordance with local regulations to prevent harm to the environment.

Insert the new battery

When it comes to replacing the battery in your device, it’s important to follow the proper steps to ensure you do it safely and correctly. Once you’ve obtained your new battery, the first step is to turn off your device and unplug it from any power sources. Take your time to locate the battery compartment, which may require removing the device’s back cover.

Once you’ve located the battery, gently remove it from the compartment, being careful not to damage any of the surrounding components. Dispose of the old battery properly, and insert the new one in its place with the connectors lined up correctly. Once the new battery is securely in place, replace the back cover and turn your device back on.

With these steps, you can easily and safely replace your device’s battery and get it back up and running like new.

Reassemble the Nest Thermostat

Changing the battery in a Nest Thermostat is a relatively straightforward process, but it requires some care and caution. To begin, gently lift the cover of the thermostat off of the base and locate the battery compartment. You should see a small tab that you can use to gently pull the battery out of its holder.

Once you have removed the old battery, carefully insert the new battery into its holder and make sure it is securely in place. Next, reattach the cover to the base of the thermostat and make sure it snaps into place. Finally, turn the thermostat back on and observe to ensure that it is fully functional.

With these easy steps, you’ll be able to change the battery in your Nest Thermostat in no time.

Place the display back onto its base

If you’ve successfully detached your Nest Thermostat display, the next step is to reassemble it by placing it back onto its base. This is a simple process that involves aligning the pins on the back of the display with the slots on the base. Once aligned, gently press the display onto the base until you hear a satisfying click.

Be sure to secure the display firmly onto the base to ensure that it doesn’t fall off or get loose over time. It’s also important to ensure that the display is facing the right way and that all buttons and sensors are accessible and not blocked by the wall or any obstructions. With this step now complete, your Nest Thermostat should be ready for use once again.

Turn the power or circuit breaker back on

After successfully installing your Nest Thermostat, it’s time to reassemble it. Before you do so, ensure that the power or circuit breaker is turned back on. Failure to do this would mean that your thermostat won’t power up, rendering all your efforts and time expended for nothing.

Once you’ve confirmed that the power is back on, reattach the display by aligning it with the base and then pushing it gently until it clicks into position. Next, screw the display back into place and then snap the thermostat ring onto the display. If you’re not sure about the reassembly process, go through the instructions manual, which has all the information you need.

Remember to handle the thermostat components with care, ensuring that you don’t damage or break any part. By following these simple steps, you can be sure that your Nest Thermostat is reassembled and ready to use, efficiently managing your home’s heating and cooling needs.

Check battery status again

After checking the battery status of your Nest Thermostat, it’s time to reassemble it. Make sure you have all the parts you removed during the disassembly process. Gently guide the thermostat back onto its base and ensure it clicks into place.

Then, secure the base back onto the wall with the screws. After that, give your thermostat a few minutes to power back on. You should see the Nest logo flashing on the screen.

If it doesn’t, double-check that the wires are tightly secured. Once your thermostat has powered back on, choose your language and follow the setup instructions on the screen. Don’t forget to download the Nest app and pair your thermostat for remote access! With your Nest Thermostat properly reassembled, you can now once again enjoy full control over your home’s temperature settings.


Well, there you have it folks – changing the battery in your Nest thermostat is about as easy as teaching a child to tie their shoes (though maybe not as glamorous). All you need is a screwdriver, a new battery, and a few minutes of your time. And just like that, your thermostat will be back up and running like a champ, controlling the temperature of your home with ease.

So go ahead and give it a shot – you’ll be a battery-swapping pro in no time!”


Can I change the battery in my Nest thermostat?
Yes, you can change the battery in your Nest thermostat.

How often do I need to change the battery in my Nest thermostat?
It is recommended to replace the battery in your Nest thermostat every 1-2 years.

What type of battery should I use in my Nest thermostat?
Your Nest thermostat uses a CR2450 lithium coin cell battery.

How do I change the battery in my Nest thermostat?
To change the battery, remove the thermostat from its base and locate the battery compartment on the back. Use a coin or flat screwdriver to open the compartment and replace the old battery with a new one.