The battery in your Blink doorbell comes out from the front and slides straight back in—no tools needed
The Blink Video Doorbell uses a standard 2032 coin-cell battery that you can swap out yourself in under five minutes. The battery sits behind the doorbell's front faceplate and slides out horizontally. You do not need a screwdriver, wrench, or any special tools—just your fingernail or a plastic spoon edge will work.
Before you start, buy a fresh 2032 battery from any drugstore, supermarket, or hardware store. They cost between $3 and $8 for a single battery, or less if you buy a pack of several. Make sure the package says "CR2032" or "DL2032"—these are the same battery with different manufacturer names.
Key Takeaways
- The Blink doorbell battery is a CR2032 coin cell that slides out from the front faceplate without tools.
- Press the faceplate gently at the bottom edge to pop it away from the doorbell body, then slide the old battery out horizontally.
- The new battery slides in with the flat side facing outward and the raised side facing the doorbell interior.
- After you insert the new battery, press the faceplate back on until it clicks—the doorbell will chime to confirm the battery is working.
Remove the faceplate by pressing at the bottom edge
Stand facing your doorbell and look at the seam where the front faceplate meets the main body. This seam runs around all four sides. Place your fingernail or the edge of a plastic spoon at the bottom of this seam, directly below the Blink logo or camera lens.
Press gently upward and outward. The faceplate will pop away from the body with a small click. Do not pry hard—if it does not move, you are pressing in the wrong spot. The bottom edge is the easiest release point. Once the bottom edge pops free, the rest of the faceplate will swing away from the doorbell body like a small door.
Locate and remove the old battery
Inside the doorbell, you will see a small circular silver battery sitting in a shallow slot. This is the 2032 coin cell. The battery sits flat against the interior, with a small metal contact on the back side and the flat face pointing outward toward you.
Slide your fingernail under the edge of the battery and gently lift it out. It will slide horizontally out of its slot. If the battery is stuck, do not force it—a tiny drop of water on your fingertip can help you grip it better. Once the battery is out, set it aside. You do not need to do anything with the old battery right away; you can recycle it later at most drugstores or electronics retailers.
Insert the new battery with the flat side facing out
Hold the new CR2032 battery with the flat, shiny side facing you and the raised edge facing away. Slide it into the slot where the old battery was. The flat side should face outward (toward the faceplate you just removed), and the raised side should face the interior of the doorbell. Push it in until it sits flush in the slot—you should feel a small click or resistance as it settles into place.
If the battery does not slide in smoothly, you may have it backwards. Remove it and flip it over, then try again. The flat side must face outward. Once the battery is seated, you are ready to close the faceplate.
Snap the faceplate back on and listen for the chime
Align the faceplate with the doorbell body so the edges line up evenly. Press the faceplate firmly against the body, starting at the bottom and working your way up the sides. You should hear a click or feel a snap as the faceplate locks back into place. Press all four edges to make sure the faceplate is fully seated.
Within a few seconds, your doorbell should chime once or twice. This chime confirms that the battery is installed correctly and the doorbell has power. If you do not hear a chime within 10 seconds, remove the faceplate and check that the battery is seated all the way in the slot. Make sure the flat side is facing outward.
What to do if the doorbell does not chime after battery replacement
If the doorbell stays silent after you install the new battery and snap the faceplate back on, the battery may not be making full contact with the metal contacts inside. Remove the faceplate again and take out the battery. Look at the two small metal contacts inside the slot—one on the bottom and one on the back wall. Wipe both contacts gently with a dry cloth or your fingertip to remove any dust or corrosion.
Reinsert the battery, making sure it slides all the way into the slot until it stops. The battery should sit completely flat and level. Snap the faceplate back on and wait 10 seconds. If the doorbell still does not chime, the battery itself may be defective. Try a different new CR2032 battery from a different package or store.
Common mistakes to avoid
The most common error is inserting the battery backwards. The flat side must face outward toward the faceplate. If you insert it with the raised edge facing out, the battery will not make contact with the doorbell's internal circuits, and the doorbell will not work.
Another mistake is not pushing the faceplate back on firmly enough. If the faceplate is not fully seated, the doorbell may not power on even though the battery is installed correctly. Press all four edges until you hear or feel a click. Do not be afraid to explore firm, even pressure—the faceplate is designed to lock securely.
A third error is buying the wrong battery size. Some people confuse the 2032 with the 2025 or 2016, which are thinner and will not work in a Blink doorbell. Always check the package and make sure it says CR2032 or DL2032.
Frequently Asked Questions
How often do I need to replace the battery?
A fresh CR2032 battery typically lasts between one and two years in a Blink doorbell, depending on how often the doorbell is used and how many times per day it records video. Doorbells in high-traffic areas may need a new battery sooner. The Blink app will send you a notification when the battery is running low, usually a few weeks before it dies completely.
Can I use a rechargeable 2032 battery instead of a disposable one?
Rechargeable 2032 batteries exist, but they are not recommended for Blink doorbells. Rechargeable versions have a lower voltage than disposable CR2032 batteries, and the Blink doorbell may not recognize them or may shut off unexpectedly. Stick with a standard disposable CR2032 battery for reliable performance.
What happens if I install the battery backwards?
If you insert the battery with the raised edge facing outward, the doorbell will not power on. The internal metal contacts will not touch the battery terminals. straightforward remove the faceplate, flip the battery around so the flat side faces out, and reinsert it. The doorbell will chime once the battery is oriented correctly.
Do I need to reset the doorbell after replacing the battery?
No reset is needed. Once you install the new battery and snap the faceplate back on, the doorbell will power on automatically and chime to confirm. It will reconnect to your Wi-Fi network on its own within a few minutes. You do not need to do anything in the Blink app.
Where can I recycle the old battery?
Most drugstores, supermarkets, and electronics retailers have battery recycling bins near the checkout or customer service desk. Best Buy, Walgreens, CVS, and Home Depot all take old batteries for free. You can also search "battery recycling near me" online to find a local drop-off location.