How to Change the Battery in a Eufy Doorbell

Changing the battery in your Eufy doorbell is simple and takes just minutes. This guide walks you through every step—from checking battery life to reattaching the doorbell—so you can keep your smart home running smoothly without professional help.

Key Takeaways

• Check battery level regularly: Use the EufySecurity app to monitor battery status and avoid unexpected outages.
• Use only compatible batteries: Eufy doorbells require specific rechargeable lithium batteries—using the wrong type can damage the device.
• Power down before replacing: Always turn off the doorbell in the app before removing it to prevent electrical issues.
• Handle the doorbell gently: Avoid forcing the device off the mount; use the correct tools to prevent damage.
• Reconnect and test after replacement: Once the new battery is installed, reattach the doorbell and verify it’s working through the app.
• Charge the battery fully before reinstalling: A full charge ensures optimal performance and longer battery life.
• Keep spare batteries on hand: Having a charged backup saves time and ensures continuous security coverage.

How to Change the Battery in a Eufy Doorbell

If you’ve noticed your Eufy doorbell acting sluggish, sending low-battery alerts, or failing to connect to your Wi-Fi, it might be time to change the battery. Don’t worry—this is a common maintenance task that you can easily handle yourself. Unlike traditional doorbells that rely on hardwired power, many Eufy models are battery-powered, giving you flexibility in installation but requiring occasional battery swaps.

In this comprehensive guide, you’ll learn exactly how to change the battery in a Eufy doorbell safely and efficiently. Whether you have a Eufy Video Doorbell 2K, Doorbell Dual, or another model, the process is similar. We’ll walk you through preparation, removal, battery replacement, reassembly, and troubleshooting—all in simple, easy-to-follow steps.

By the end of this guide, you’ll feel confident handling your Eufy doorbell’s battery like a pro. You’ll also learn tips to extend battery life and avoid common mistakes. Let’s get started!

Why You Might Need to Change the Battery

Eufy doorbells are designed for convenience and reliability, but like any electronic device, their batteries don’t last forever. Most Eufy doorbells use rechargeable lithium-ion batteries that typically last between 3 to 6 months, depending on usage, climate, and settings.

Here are some signs that your Eufy doorbell battery needs replacing:

• Frequent low-battery notifications: The EufySecurity app will alert you when the battery drops below 20%. If you’re getting these alerts often, it’s time for a change.
• Doorbell not responding: If the doorbell fails to ring, record video, or connect to the app, a dead battery could be the culprit.
• Motion detection not working: A weak battery may cause the doorbell to miss motion events or delay recordings.
• Charging takes longer than usual: If the battery drains quickly even after a full charge, it may be nearing the end of its lifespan.
• Visible damage to the battery: Swelling, leakage, or corrosion are clear signs the battery needs immediate replacement.

Ignoring these signs can leave your home unprotected. Regular battery maintenance ensures your doorbell stays online and ready to alert you to visitors, packages, or unexpected activity.

What You’ll Need Before Starting

Before you begin, gather the following tools and materials to make the process smooth and safe:

• Replacement battery: Use only Eufy-approved rechargeable lithium batteries (such as the Eufy B1 Battery). Avoid generic or off-brand batteries, as they may not fit properly or could damage your doorbell.
• Small Phillips-head screwdriver: Most Eufy doorbells use small screws to secure the faceplate or mounting bracket.
• Soft cloth or microfiber towel: To clean the doorbell and prevent scratches during handling.
• EufySecurity app installed on your phone: You’ll need this to power down the doorbell and check its status.
• Optional: Suction cup or plastic pry tool: Helps gently remove the doorbell from the mount without scratching it.
• Charging cable and power source: To charge the new battery before or after installation.

Having everything ready beforehand saves time and reduces the risk of losing small parts. It’s also a good idea to work in a well-lit area, preferably during daylight hours.

Step 1: Check the Battery Level in the Eufy App

Before physically removing your doorbell, always check the battery level using the EufySecurity app. This helps confirm whether a battery change is truly needed and ensures you’re not troubleshooting a different issue.

Open the EufySecurity App

Launch the app on your smartphone or tablet. Make sure you’re logged into the account linked to your doorbell.

Select Your Doorbell

Tap on the device icon for your Eufy doorbell from the home screen. This will open the live view and control panel.

Navigate to Device Settings

Look for a gear icon or “Settings” option, usually in the top-right corner. Tap it to access detailed settings.

Find Battery Information

Scroll down to the “Device Information” or “Battery” section. Here, you’ll see the current battery percentage and health status.

If the battery is below 20%, it’s time to replace it. Even if it’s higher, but you’re experiencing performance issues, a replacement may still be wise—especially if the battery is old.

Power Down the Doorbell

Before removing the doorbell, go to the settings and select “Power Off” or “Turn Off Device.” This prevents accidental damage during removal and ensures safety.

Step 2: Remove the Eufy Doorbell from the Mount

Now that the doorbell is powered down, it’s time to remove it from the wall mount. Handle it carefully to avoid dropping or scratching the device.

Locate the Release Mechanism

Most Eufy doorbells are secured with a small screw on the bottom or side of the mount. Use your Phillips-head screwdriver to loosen and remove this screw. Keep it in a safe place—you’ll need it later.

Gently Pull the Doorbell Away

Once the screw is removed, the doorbell should loosen from the mount. Gently pull it straight away from the wall. Avoid twisting or forcing it, as this could damage the internal components.

If the doorbell feels stuck, use a plastic pry tool or suction cup to help lift it. Never use metal tools, as they can scratch or crack the casing.

Disconnect the Battery (If Applicable)

Some Eufy models have a removable battery tray, while others require you to open the back panel. For models with a tray, simply slide it out. For others, you may need to unscrew the back cover.

Step 3: Remove the Old Battery

With the doorbell removed, it’s time to take out the old battery. Handle it with care, especially if it shows signs of damage.

Identify the Battery Compartment

Look for a small compartment on the back or bottom of the doorbell. It’s usually labeled or marked with a battery icon.

Open the Battery Cover

Use your screwdriver to remove any screws holding the cover in place. Some models have a latch or clip system—press gently to release.

Carefully Extract the Old Battery

Lift the battery out by its edges. Avoid touching the terminals with your fingers, as oils from your skin can affect performance.

If the battery is swollen or leaking, wear gloves and dispose of it properly at an electronics recycling center. Do not throw it in regular trash.

Inspect the Compartment

Check for dust, corrosion, or debris inside the battery compartment. Use a dry cloth or compressed air to clean it gently. A clean compartment ensures a good connection with the new battery.

Step 4: Insert the New Battery

Now it’s time to install the fresh battery. Make sure it’s fully charged before inserting it.

Check the Battery Orientation

Look for the positive (+) and negative (-) markings on both the battery and the compartment. The battery must be inserted in the correct direction to work properly.

Slide the Battery into Place

Gently push the battery into the compartment until it clicks or sits flush. Do not force it—if it doesn’t fit easily, double-check the orientation.

Secure the Battery Cover

Replace the cover and tighten the screws. Ensure it’s snug but not over-tightened, as this could strip the threads.

Charge the Battery (If Needed)

If the new battery isn’t pre-charged, connect it to the charging cable and plug it into a USB power source. Most Eufy batteries take 2–4 hours to fully charge. A full charge ensures maximum performance and longevity.

Step 5: Reattach the Doorbell to the Mount

With the new battery installed, it’s time to put the doorbell back on the wall.

Align the Doorbell with the Mount

Hold the doorbell so the mounting points line up with the bracket on the wall. Make sure it’s level and facing the correct direction.

Slide It Into Place

Gently push the doorbell onto the mount until it clicks or sits securely. You should feel it lock into position.

Reinsert the Security Screw

Use your screwdriver to reattach the small screw that holds the doorbell in place. This prevents theft and ensures stability.

Wipe Down the Doorbell

Use a soft, dry cloth to clean the lens and casing. This removes fingerprints and ensures clear video quality.

Step 6: Power On and Test the Doorbell

Now that everything is back in place, it’s time to turn the doorbell back on and make sure it’s working.

Open the EufySecurity App

Launch the app and select your doorbell.

Power On the Device

Go to the settings and tap “Power On” or “Turn On Device.” Wait a few seconds for it to reconnect to Wi-Fi.

Check the Live View

Tap the live view button to see if the camera is working. You should see a clear image of your front door.

Test the Doorbell Function

Press the doorbell button (or simulate a press in the app) to see if it rings and sends a notification to your phone.

Verify Motion Detection

Walk in front of the doorbell to test motion detection. You should receive an alert and see a recording in the app.

Check Battery Level

Go back to the battery section in settings to confirm the new battery is recognized and showing a high charge level.

Tips to Extend Battery Life

Replacing the battery is only part of the solution. To get the most out of your Eufy doorbell, follow these tips to extend battery life:

• Adjust motion sensitivity: High sensitivity drains the battery faster. Lower it in areas with frequent false triggers (like trees or passing cars).
• Limit recording duration: Set shorter recording lengths (e.g., 15 seconds instead of 30) to save power.
• Use scheduled modes: Turn off motion detection during times when you don’t need it, like when you’re home.
• Keep the lens clean: A dirty lens can cause the doorbell to work harder, using more power.
• Avoid extreme temperatures: Cold weather reduces battery efficiency. If possible, install the doorbell in a sheltered area.
• Update firmware regularly: Eufy releases updates that improve battery performance and fix bugs.
• Use a solar panel (if compatible): Some Eufy models support solar charging, which can significantly extend battery life.

Troubleshooting Common Issues

Even with careful handling, you might run into problems. Here’s how to fix the most common issues:

Doorbell Won’t Turn On After Battery Replacement

• Double-check that the battery is inserted correctly and fully charged.
• Ensure the doorbell is properly seated on the mount and the security screw is tightened.
• Restart the doorbell by removing and reinserting the battery.
• Reset the device using the reset button (usually a small pinhole on the back).

App Shows “Low Battery” Despite New Battery

• The battery may not be fully charged. Charge it for at least 4 hours.
• The app might need to refresh. Force-close and reopen the EufySecurity app.
• The battery could be defective. Try a different replacement battery.

Doorbell Falls Off the Mount

• Make sure the security screw is properly tightened.
• Check that the mount is securely attached to the wall.
• Use the anti-theft mount if your model supports it.

Poor Video Quality After Reassembly

• Clean the camera lens with a microfiber cloth.
• Ensure the doorbell is level and not tilted.
• Check for obstructions like dirt, spider webs, or condensation.

Wi-Fi Connection Issues

• Move your router closer or use a Wi-Fi extender.
• Restart your router and the doorbell.
• Ensure the doorbell is within range of your network (typically up to 300 feet).

When to Replace the Battery vs. Recharge It

Not every low-battery alert means you need a new battery. Most Eufy batteries are rechargeable and can be used multiple times. Here’s how to decide:

• Recharge if: The battery drains quickly but holds a charge when plugged in. This is normal wear and tear.
• Replace if: The battery won’t hold a charge, takes longer than 6 hours to charge, or shows physical damage.
• Replace if: You’ve recharged the battery 300–500 times (most lithium batteries have a limited cycle life).

Keeping a spare charged battery on hand lets you swap them quickly without downtime.

Conclusion

Changing the battery in your Eufy doorbell is a simple task that anyone can do with the right tools and guidance. By following this step-by-step guide, you’ve learned how to safely remove, replace, and test your doorbell’s battery—keeping your smart home secure and functional.

Regular maintenance, like monitoring battery life and cleaning the device, ensures your Eufy doorbell performs at its best. And with tips to extend battery life, you’ll get more value from each charge.

Remember: always use genuine Eufy batteries, power down the device before handling, and test everything after reassembly. With these habits, your doorbell will stay reliable for years to come.

Don’t wait until your doorbell dies unexpectedly. Stay proactive, keep a spare battery charged, and enjoy peace of mind knowing your home is always protected.