How to Charge Eufy Doorbell E340

Charging your Eufy Doorbell E340 is simple, but doing it correctly ensures long battery life and reliable performance. This guide walks you through every step—from removing the doorbell to reconnecting it after charging—with clear instructions and helpful tips.

Key Takeaways

• Use the official USB-C cable and adapter: Always charge with the included Eufy cable and a compatible 5V/2A adapter for safe, fast charging.
• Fully remove the doorbell before charging: Never charge while mounted—this prevents damage and ensures a secure connection.
• Charge in a dry, indoor environment: Avoid moisture and extreme temperatures to protect the battery and internal components.
• Monitor charging progress via the Eufy app: The app shows battery percentage and charging status in real time.
• Reinstall securely after charging: Make sure the doorbell clicks into place and the mounting screw is tightened to prevent theft or misalignment.
• Avoid frequent partial charges: For best battery health, aim to charge when the battery drops below 20% and fully top it up.
• Check for firmware updates: Updated firmware can improve battery efficiency and charging performance.

How to Charge Eufy Doorbell E340: A Complete Step-by-Step Guide

So, your Eufy Doorbell E340 is running low on battery—again. Don’t worry, you’re not alone. Many smart doorbell users wonder how to charge their device properly without damaging the battery or interrupting their home security. The good news? Charging the Eufy Doorbell E340 is straightforward, safe, and only takes a few minutes once you know the right steps.

In this guide, we’ll walk you through everything you need to know about charging your Eufy Doorbell E340—from unmounting the device to reconnecting it after a full charge. We’ll also share practical tips to extend battery life, troubleshoot common issues, and answer frequently asked questions. Whether you’re a first-time Eufy user or just need a refresher, this guide has you covered.

By the end, you’ll feel confident handling your doorbell’s charging needs like a pro—keeping your home secure and your device running smoothly year-round.

What You’ll Need Before You Start

Before you begin the charging process, gather these essential items to ensure a smooth experience:

• The Eufy Doorbell E340 unit – Obviously!
• Original USB-C charging cable – Included with your doorbell. Avoid third-party cables, as they may not deliver consistent power.
• 5V/2A USB power adapter – Use the one that came in the box or a certified adapter with similar output. A phone charger works too, as long as it’s 5V and at least 1A (2A is better for faster charging).
• Small Phillips-head screwdriver – Needed to remove the security screw on the mounting bracket.
• Clean, dry cloth – To wipe the doorbell and charging port before and after charging.
• Smartphone with the Eufy Security app installed – To monitor battery level and receive notifications.

Pro Tip: Keep your charging kit in a drawer near your front door or in a garage toolbox so it’s always within reach when the battery runs low.

Step 1: Check the Battery Level in the Eufy App

Before you start the physical process of charging, it’s smart to check your doorbell’s current battery level. This helps you decide whether a full charge is needed or if a quick top-up will do.

Open the Eufy Security App

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

Navigate to Your Doorbell

Tap on the Devices tab at the bottom of the screen. Find your Eufy Doorbell E340 in the list and select it.

View Battery Status

On the device control screen, look for the battery icon—usually located near the top-right corner. It will show a percentage (e.g., “Battery: 35%”). If it’s below 20%, it’s time to charge. Even if it’s higher, you can still charge it, but frequent partial charges aren’t ideal for long-term battery health.

Note: The app may also send a low-battery notification when the level drops below 20%. If you’ve received one, it’s definitely time to charge.

Step 2: Safely Remove the Eufy Doorbell E340 from the Wall

Never charge your doorbell while it’s still mounted. Doing so can strain the charging port, damage the cable, or even cause the device to fall. Follow these steps to remove it safely.

Turn Off Motion Alerts (Optional but Recommended)

To avoid false alerts while the doorbell is off, go to the Eufy app, select your doorbell, and temporarily disable motion detection. You can re-enable it after reinstalling.

Locate the Security Screw

At the bottom of the doorbell, you’ll see a small screw on the mounting bracket. This screw prevents theft and keeps the doorbell securely attached.

Unscrew the Security Screw

Use your Phillips-head screwdriver to carefully remove the screw. Set it aside in a safe place—like a small container or magnetic tray—so you don’t lose it.

Gently Slide the Doorbell Down

Once the screw is out, gently pull the bottom of the doorbell away from the wall and slide it downward. It should come off easily. Be careful not to yank it—there’s a small connector inside the bracket that powers the doorbell if you have a wired version, but the E340 is battery-powered, so no wires to worry about.

Important: Handle the doorbell with clean, dry hands. Avoid touching the lens or sensors unnecessarily.

Step 3: Prepare the Doorbell for Charging

Now that your doorbell is off the wall, it’s time to get it ready for charging. A little prep goes a long way in protecting your device.

Inspect the Charging Port

Look at the bottom of the doorbell where the USB-C port is located. Check for dust, dirt, or moisture. If you see any debris, gently wipe it away with a dry, lint-free cloth. Never use water or cleaning sprays directly on the port.

Clean the Exterior (Optional)

While you’re at it, wipe down the front and sides of the doorbell with a slightly damp cloth to remove fingerprints, dust, or weather residue. Let it dry completely before charging.

Choose a Safe Charging Location

Find a clean, dry, indoor spot to charge your doorbell—like a kitchen counter, desk, or nightstand. Avoid humid areas (like bathrooms) or places near heat sources (like radiators or direct sunlight). Extreme temperatures can damage the battery.

Pro Tip: Charge your doorbell in the same room where you keep your router or smart hub. That way, you can easily check the app for updates or notifications during charging.

Step 4: Connect the Charging Cable

Now it’s time to plug in your doorbell. Follow these steps carefully to ensure a secure and safe connection.

Use the Official USB-C Cable

Grab the USB-C cable that came with your Eufy Doorbell E340. This cable is designed specifically for the device and ensures optimal charging speed and safety. Avoid using cheap or uncertified cables—they can overheat or deliver inconsistent power.

Plug the Cable into the Doorbell

Align the USB-C connector with the port on the bottom of the doorbell. Gently push it in until it clicks into place. Don’t force it—USB-C is reversible, so it should fit no matter which way you insert it.

Connect the Other End to a Power Adapter

Plug the USB-A end of the cable into your 5V/2A power adapter. Then, plug the adapter into a wall outlet. Make sure the outlet is working—test it with another device if needed.

Note: You can also charge using a computer’s USB port, but it will be slower. For best results, use a wall adapter.

Step 5: Monitor the Charging Process

Once connected, your doorbell will begin charging. Here’s how to track its progress and know when it’s fully charged.

Check the LED Indicator

The Eufy Doorbell E340 has a small LED light near the top. When charging, it will glow solid red. Once the battery reaches 100%, the light will turn solid green. If the light is off, the doorbell may not be charging properly—check the cable and power source.

Use the Eufy App for Real-Time Updates

Open the Eufy Security app and go to your doorbell’s device page. The battery percentage will update in real time as it charges. You can also enable notifications to alert you when charging is complete.

Charging Time Estimate

On average, it takes about 4 to 6 hours to fully charge the Eufy Doorbell E340 from 0% to 100% using the official 5V/2A adapter. If you’re using a slower charger (like a 1A phone adapter), it may take up to 8 hours.

Pro Tip: Charge your doorbell overnight for convenience. Set a reminder to check the app in the morning to see if it’s ready.

Step 6: Disconnect and Reinstall the Doorbell

Once your doorbell is fully charged, it’s time to put it back on the wall and restore your home security.

Unplug the Charging Cable

Carefully disconnect the USB-C cable from the doorbell. Then unplug the adapter from the wall. Store the cable and adapter in a safe place for next time.

Inspect the Doorbell Again

Before reinstalling, give the doorbell a quick once-over. Make sure the lens is clean, the sensors are unobstructed, and there’s no moisture inside the charging port.

Slide the Doorbell Back onto the Mounting Bracket

Align the top of the doorbell with the mounting bracket on the wall. Gently slide it upward until it clicks into place. You should feel it lock securely.

Reinsert the Security Screw

Use your screwdriver to reattach the security screw at the bottom. Tighten it just enough to hold the doorbell in place—don’t over-tighten, as this can strip the screw or damage the bracket.

Test the Connection

Open the Eufy app and check the device status. The battery should now show 100% (or close to it). Tap the live view button to ensure the camera is working and the connection is stable.

Pro Tip: After reinstalling, walk to your front door and ring the doorbell (if it has a physical button) to test the chime and notification system.

Tips to Extend Battery Life and Improve Charging Efficiency

Charging your doorbell correctly is only half the battle. To get the most out of your Eufy Doorbell E340, follow these best practices for long-term battery health.

Avoid Frequent Partial Charges

Lithium-ion batteries (like the one in your E340) last longer when they’re charged from low to full rather than topped up constantly. Try to charge when the battery drops below 20% and aim for a full 100% charge each time.

Adjust Motion Sensitivity

High motion sensitivity can drain the battery faster. In the Eufy app, go to Device Settings > Motion Detection and lower the sensitivity or set activity zones to reduce unnecessary recordings.

Enable Smart Alerts

Use AI-powered person detection to filter out false alerts (like passing cars or animals). This reduces the number of recordings and saves battery.

Update Firmware Regularly

Eufy frequently releases firmware updates that improve battery efficiency and performance. Check for updates in the app under Device Settings > Firmware Update.

Avoid Extreme Temperatures

Don’t leave your doorbell in direct sunlight for long periods or expose it to freezing temperatures. Both can degrade battery life over time. If you live in a hot or cold climate, consider a weatherproof cover or shade.

Charge During Off-Peak Hours

If you’re concerned about energy usage, charge your doorbell during off-peak hours (like late at night). It’s also a good time to avoid Wi-Fi congestion.

Troubleshooting Common Charging Issues

Even with proper care, you might run into charging problems. Here’s how to fix the most common issues.

Doorbell Won’t Charge

If the LED light doesn’t turn red when plugged in, check the following:

• Is the USB-C cable fully inserted?
• Is the power adapter working? Test it with another device.
• Is the outlet functional? Try a different outlet.
• Is the charging port dirty? Clean it gently with a dry cloth.

If none of these work, try a different cable or adapter. If the problem persists, contact Eufy support.

Battery Drains Too Fast

If your doorbell loses charge quickly even after a full charge, consider:

• Reducing motion detection sensitivity.
• Turning off unnecessary features like color night vision or two-way audio.
• Checking for firmware updates.
• Ensuring your Wi-Fi signal is strong—weak signals cause the doorbell to work harder.

LED Light Stays Red or Flashes

A solid red light means charging. If it stays red for more than 6 hours, the battery may be faulty. A flashing red light could indicate a connection issue or overheating. Unplug the doorbell, let it cool, and try again.

Doorbell Won’t Reconnect After Charging

If the app shows “offline” after reinstalling:

• Make sure the doorbell is fully seated on the bracket.
• Restart your Wi-Fi router.
• Reboot the doorbell by removing and reinserting the battery (if accessible) or power-cycling it.
• Re-pair the device in the app if necessary.

Final Thoughts: Keep Your Eufy Doorbell E340 Powered and Protected

Charging your Eufy Doorbell E340 doesn’t have to be a hassle. With the right tools, a little patience, and these step-by-step instructions, you can keep your smart doorbell running smoothly all year long. Remember: always use the official cable, charge in a safe environment, and monitor progress through the app.

By following best practices—like avoiding partial charges and keeping firmware updated—you’ll extend your doorbell’s lifespan and enjoy reliable home security without constant battery anxiety. And if you ever run into issues, the troubleshooting tips above should help you get back on track quickly.

Now that you know how to charge your Eufy Doorbell E340 like a pro, you can focus on what really matters: keeping your home safe, secure, and smart.