How to Change Battery Eufy Doorbell

Changing the battery in your Eufy doorbell is simple and takes just a few minutes. This guide walks you through every step, from removing the old battery to testing the new one, ensuring your smart doorbell stays powered and secure.

Key Takeaways

• Turn off power first: Always disconnect power at the breaker before handling wired Eufy doorbells to avoid electrical shock.
• Use the right battery: Only use a compatible 18650 lithium-ion battery (3.7V, 2600mAh or higher) for optimal performance.
• Charge fully before installing: A fully charged battery ensures maximum runtime and prevents early low-battery alerts.
• Secure the doorbell properly: After reassembly, make sure the unit clicks into place to maintain weather resistance.
• Test after installation: Check live view, motion detection, and notifications to confirm everything works correctly.
• Recycle old batteries safely: Dispose of used batteries at certified e-waste centers to protect the environment.
• Update firmware regularly: Keep your Eufy app and doorbell updated for better battery management and security.

How to Change Battery Eufy Doorbell: A Complete Step-by-Step Guide

If your Eufy doorbell is showing a low battery warning or has stopped responding, it’s likely time to replace the battery. Whether you own a battery-powered model like the Eufy Video Doorbell 2K or a wired version with a backup battery, knowing how to change the battery Eufy doorbell is essential for maintaining home security and uninterrupted functionality.

This comprehensive guide will walk you through the entire process—from identifying your doorbell model to safely installing a new battery and testing the system. We’ll also cover important safety tips, troubleshooting common issues, and best practices to extend battery life. By the end, you’ll feel confident handling battery replacements on your own, saving time and avoiding unnecessary service calls.

Let’s get started!

Understanding Your Eufy Doorbell Model

Before you begin, it’s crucial to know which Eufy doorbell you have. Eufy offers several models, including:

– Eufy Video Doorbell 2K (Battery)
– Eufy Video Doorbell 2K (Wired)
– Eufy Video Doorbell Dual
– Eufy Video Doorbell Slim

Most battery-powered models use a removable 18650 lithium-ion battery, while wired versions may have an internal rechargeable battery that charges via your home’s electrical wiring. Some wired models also include a backup battery for power outages.

To identify your model:
– Check the back of the doorbell for a label with the model number.
– Open the Eufy Security app, go to “Devices,” select your doorbell, and view the model info.
– Look up your purchase receipt or packaging.

Knowing your model helps ensure you purchase the correct replacement battery and follow the right steps.

Safety First: Precautions Before You Begin

Changing the battery in your Eufy doorbell is generally safe, but taking a few precautions can prevent accidents and damage.

Turn Off Power (For Wired Models)

If your Eufy doorbell is wired to your home’s electrical system, you must turn off the power at the circuit breaker before removing the unit. This prevents electrical shock and protects the device from power surges.

– Locate your home’s electrical panel.
– Find the breaker labeled “Doorbell” or “Front Door.” If unsure, turn off the main breaker.
– Use a non-contact voltage tester to confirm the power is off at the doorbell wires.
– Wait 5–10 minutes before proceeding to ensure capacitors discharge.

Work in a Dry, Well-Lit Area

Avoid changing the battery in rain, snow, or high humidity. Moisture can damage the electronics and reduce the doorbell’s lifespan. Choose a dry, shaded spot near your doorbell for easier access.

Gather Your Tools and Supplies

You’ll need:
– A compatible 18650 lithium-ion battery (3.7V, 2600mAh or higher)
– A small Phillips-head screwdriver (if required for your model)
– A soft cloth or microfiber towel
– A fully charged replacement battery (we recommend charging it indoors first)
– Optional: Gloves to keep fingerprints off the lens

Having everything ready saves time and reduces frustration.

Step 1: Remove the Eufy Doorbell from the Mount

The first step in changing the battery is safely detaching the doorbell from its mounting bracket.

For Battery-Powered Models

Most battery-powered Eufy doorbells snap onto a mounting plate. To remove:
– Stand on a stable step ladder if needed.
– Gently pull the bottom of the doorbell away from the wall.
– The unit should release with a slight tug—do not force it.
– If it feels stuck, wiggle it slightly while pulling downward.

For Wired Models

Wired models are secured with screws and connected to electrical wires. After turning off the power:
– Use a Phillips-head screwdriver to remove the two screws on the bottom of the doorbell.
– Carefully lower the doorbell to expose the wires.
– Take a photo of the wire connections for reference.
– Disconnect the wires by loosening the terminal screws or unclipping the connectors.

Set the doorbell on a soft surface to avoid scratching the lens or casing.

Step 2: Access the Battery Compartment

Once the doorbell is removed, locate the battery compartment.

On Most Eufy Models

– Flip the doorbell over to reveal the back.
– You’ll see a small latch or sliding cover near the bottom.
– Press the latch or slide the cover to open the battery compartment.
– Some models may require a screwdriver to remove a small screw.

For Eufy Video Doorbell Dual

This model has a slightly different design:
– The battery is housed in a removable tray.
– Slide the tray out by pressing the release button on the side.
– The tray will pop out with the battery inside.

Always handle the doorbell gently to avoid damaging internal components.

Step 3: Remove the Old Battery

Now it’s time to take out the old battery.

Carefully Disconnect the Battery

– The battery is usually connected via a small plug or connector.
– Gently unplug the connector by pulling it straight out—do not yank the wires.
– If the battery is held in place with tape or a bracket, remove it carefully.

Inspect the Old Battery

Check for signs of damage:
– Swelling or bulging
– Leaking fluid
– Corrosion on the terminals
– Discoloration

If you notice any of these, do not reuse the battery. Handle it as hazardous waste and recycle it properly.

Clean the Compartment

Use a dry cloth to wipe out any dust or debris from the battery compartment. Avoid using water or cleaning solutions, as moisture can damage the electronics.

Step 4: Install the New Battery

With the old battery removed, it’s time to install the new one.

Choose the Right Battery

Use only a high-quality 18650 lithium-ion battery with the following specs:
– Voltage: 3.7V
– Capacity: 2600mAh or higher (3000mAh recommended for longer life)
– Brand: Trusted manufacturers like Samsung, LG, Panasonic, or Eufy’s official replacement

Avoid cheap, no-name batteries—they may overheat, leak, or fail prematurely.

Insert the New Battery

– Place the new battery into the compartment with the positive (+) terminal facing the correct direction (usually marked inside the compartment).
– Ensure it sits flat and secure.
– Reconnect the battery plug by pushing it firmly into the socket until it clicks.

Secure the Battery

If your model uses a cover or latch:
– Close the battery compartment door.
– Slide or snap it into place.
– For models with screws, reinsert and tighten them gently—do not overtighten.

Step 5: Reattach the Doorbell

Now that the new battery is installed, it’s time to put the doorbell back.

For Battery-Powered Models

– Align the doorbell with the mounting plate.
– Push it firmly onto the plate until it clicks into place.
– Give it a gentle tug to ensure it’s secure.

For Wired Models

– Reconnect the wires to the terminals (refer to your photo if needed).
– Tighten the screws securely but avoid over-tightening.
– Lift the doorbell and align it with the mounting bracket.
– Insert the two screws and tighten them.
– Turn the power back on at the breaker.

Step 6: Test the Doorbell

After reassembly, test the doorbell to ensure everything works.

Check the Eufy Security App

– Open the Eufy Security app on your phone.
– Go to “Devices” and select your doorbell.
– Look for a green “Online” status.
– Tap “Live View” to see the camera feed.

Test Key Features

– Wave at the doorbell to trigger motion detection.
– Check if you receive a notification on your phone.
– Test two-way audio by speaking through the app.
– Verify night vision and recording functionality.

If everything works, your battery replacement was successful!

Troubleshooting Common Issues

Sometimes, problems arise after changing the battery. Here’s how to fix them.

Doorbell Won’t Turn On

– Ensure the battery is fully charged (charge indoors for 3–4 hours).
– Check that the battery is inserted correctly and the connector is secure.
– For wired models, confirm the power is back on and wires are connected.

App Shows “Offline” or “Low Battery”

– Restart the doorbell by removing and reinserting the battery.
– Reconnect to Wi-Fi via the app (go to Device Settings > Wi-Fi).
– Update the Eufy app and doorbell firmware.

Poor Video Quality or Lag

– Check your Wi-Fi signal strength near the doorbell.
– Move your router closer or use a Wi-Fi extender.
– Reduce interference from other devices.

Battery Drains Too Fast

– Lower motion detection sensitivity in the app.
– Reduce recording duration or enable “Smart Detection” to filter out pets and vehicles.
– Ensure the doorbell isn’t exposed to extreme temperatures.

Tips to Extend Battery Life

A new battery is just the start. Follow these tips to make it last longer.

Optimize Motion Settings

– Set motion zones to ignore busy areas like trees or roads.
– Use “Human Only” detection to reduce false alerts.
– Adjust sensitivity based on your environment.

Enable Power-Saving Modes

Some Eufy models offer “Eco Mode” or “Low Power Mode,” which reduces video quality or recording frequency to save battery.

Keep Firmware Updated

Eufy regularly releases updates that improve battery efficiency and performance. Check for updates monthly in the app.

Avoid Extreme Temperatures

Cold weather reduces battery capacity. If possible, install the doorbell in a sheltered location or use a weatherproof cover.

Charge Regularly

Even if the battery isn’t fully drained, charge it every 2–3 months to maintain health.

How to Safely Dispose of Old Batteries

Lithium-ion batteries should never go in regular trash. They can leak harmful chemicals and pose fire risks.

Recycle Responsibly

– Take old batteries to a certified e-waste recycling center.
– Many electronics stores (Best Buy, Home Depot) offer free battery recycling.
– Check with your local waste management authority for drop-off locations.

Store Safely Until Disposal

– Tape the battery terminals with electrical tape to prevent short circuits.
– Store in a cool, dry place away from flammable materials.

When to Replace Your Battery

Most Eufy doorbell batteries last 3–6 months, depending on usage. Signs it’s time to change the battery include:

– Frequent low-battery alerts
– Doorbell shutting off unexpectedly
– Reduced recording time or missed events
– Battery swelling or overheating

If your battery lasts less than 2 months, consider adjusting settings or checking for firmware issues.

Conclusion

Changing the battery in your Eufy doorbell is a quick and straightforward task that anyone can do with the right guidance. By following this step-by-step guide, you’ve learned how to safely remove the old battery, install a new one, and test your device to ensure it’s working perfectly.

Remember to always prioritize safety—especially with wired models—and use only high-quality replacement batteries. Regular maintenance, smart settings, and proper disposal will keep your Eufy doorbell running smoothly for years to come.

With a fresh battery and a little know-how, you can enjoy uninterrupted home security, clear video, and reliable notifications. Now that you know how to change battery Eufy doorbell, you’re in control of your smart home’s front line of defense.

Stay safe, stay connected, and never miss a visitor again!