How to Charge Eufy Video Smart Lock Battery

Charging your Eufy Video Smart Lock battery is simple, but doing it correctly ensures long-term performance and safety. This guide walks you through every step—from identifying low battery signs to safely recharging and maintaining your device for reliable home security.

Key Takeaways

• Know the signs of a low battery: Dimming screen, slow response, or app notifications indicate it’s time to charge.
• Use only the official Eufy charging cable and adapter: Third-party chargers may damage the battery or void your warranty.
• Charge in a dry, room-temperature environment: Avoid extreme heat or cold to protect battery health.
• Fully charge before first use: New locks should charge for at least 6 hours out of the box.
• Maintain regular charging habits: Recharge every 2–3 months even if not in use to prevent deep discharge.
• Never force the charging port: Align the cable gently to avoid damaging the lock’s internal components.
• Monitor charging via the EufySecurity app: Track battery level and receive alerts for optimal maintenance.

How to Charge Eufy Video Smart Lock Battery

Keeping your Eufy Video Smart Lock powered is essential for maintaining home security, convenience, and peace of mind. Whether you’re a new owner or just need a refresher, knowing how to charge the Eufy Video Smart Lock battery correctly can extend its lifespan and ensure reliable performance. In this comprehensive guide, we’ll walk you through everything you need to know—from recognizing low battery warnings to safely recharging and maintaining your device.

This guide is designed for all Eufy Video Smart Lock models, including the Eufy Video Doorbell Lock and Eufy Smart Lock Video models. We’ll cover step-by-step instructions, safety tips, troubleshooting, and best practices to help you get the most out of your smart lock. By the end, you’ll feel confident charging your device and keeping it running smoothly year-round.

Why Charging Your Eufy Video Smart Lock Matters

The Eufy Video Smart Lock combines a high-definition camera, two-way audio, motion detection, and a secure electronic lock—all powered by a rechargeable lithium-ion battery. Unlike traditional locks, this smart device relies entirely on battery power to function. If the battery dies, you could lose access to live video, remote unlocking, and even physical entry if the mechanical key isn’t readily available.

Regular charging prevents unexpected lockouts and ensures your home remains protected. A well-maintained battery also lasts longer, reducing the need for frequent replacements. Plus, Eufy’s advanced power management system is designed to maximize efficiency, but only if you follow proper charging procedures.

Charging your Eufy Video Smart Lock isn’t just about plugging it in—it’s about doing it the right way to protect your investment and your home.

Signs Your Eufy Video Smart Lock Battery Is Low

Before you even think about charging, it’s important to recognize when your Eufy Video Smart Lock needs power. The device is designed to give you plenty of warning before the battery runs out completely. Here are the most common signs:

1. Low Battery Notification in the EufySecurity App

The most reliable indicator is a push notification or alert in the EufySecurity app. When the battery drops below 20%, the app will send a warning. You’ll also see a battery icon with a red outline or a percentage below 20% on the device’s live view screen.

2. Dim or Flickering Screen

If the video display on your lock appears dim, flickers, or takes longer to activate when motion is detected, it’s a strong sign the battery is running low. The screen may also fail to turn on entirely in extreme cases.

3. Slow Response to Touch or App Commands

A healthy Eufy Video Smart Lock responds instantly to touch inputs and app commands. If you notice delays when unlocking via the app, pressing buttons, or using voice commands, the battery may be struggling to power the system.

4. Reduced Motion Detection or Night Vision

Low battery can affect the camera’s performance. You might notice that motion alerts are less frequent, or the night vision appears grainy or inactive. These features require extra power, so they’re often the first to suffer when the battery is weak.

5. Audible Beeps or Flashing Lights

Some Eufy models emit a series of beeps or flash a red LED light when the battery is critically low. This is a final warning before the device shuts down completely.

If you notice any of these signs, it’s time to charge your Eufy Video Smart Lock battery. Don’t wait until it dies—proactive charging helps maintain battery health.

What You’ll Need to Charge Your Eufy Video Smart Lock

Before you begin, make sure you have the right tools and environment for a safe and effective charge. Here’s what you’ll need:

• Official Eufy charging cable: This is a USB-C cable specifically designed for Eufy smart locks. Using third-party cables can cause charging issues or damage the device.
• Eufy-approved power adapter: The lock comes with a 5V/2A adapter. Use only this or a certified replacement to avoid overcharging.
• A stable power source: Plug into a wall outlet, not a USB port on a computer or TV, which may not provide enough power.
• A dry, indoor location: Never charge the lock outdoors or in damp areas like garages or near windows during rain.
• Access to the charging port: The port is located on the bottom edge of the lock. You may need to remove the lock from the door temporarily, depending on your model.

Having these items ready will make the charging process quick and hassle-free.

Step-by-Step Guide to Charging Your Eufy Video Smart Lock

Now that you’re prepared, let’s walk through the charging process step by step. Follow these instructions carefully to ensure a safe and successful charge.

Step 1: Check the Current Battery Level

Open the EufySecurity app on your smartphone and navigate to your Video Smart Lock device. Tap on the device icon to view the live feed. In the top-right corner, you’ll see a battery icon with a percentage. If it’s below 20%, proceed with charging. If it’s above 50%, you may not need to charge yet—but it’s still good practice to top it off occasionally.

Step 2: Locate the Charging Port

The charging port is a small USB-C slot located on the bottom edge of the Eufy Video Smart Lock. Depending on your installation, you may need to partially remove the lock from the door to access it comfortably. Use the included screwdriver or a Phillips-head screwdriver to loosen the mounting screws just enough to tilt the lock forward.

Tip: Don’t fully remove the lock unless necessary. Tilting it slightly is usually enough to reach the port.

Step 3: Connect the Charging Cable

Take the official Eufy USB-C charging cable and gently insert it into the charging port. Make sure the connector is aligned correctly—USB-C is reversible, so it should fit either way, but avoid forcing it. You should feel a slight click when it’s properly seated.

Safety Note: Never use excessive force. If the cable doesn’t go in easily, double-check the orientation or inspect the port for dust or debris.

Step 4: Plug Into a Power Source

Connect the other end of the cable to the Eufy power adapter, then plug the adapter into a wall outlet. Ensure the outlet is functioning—test it with another device if needed. Avoid using extension cords or power strips, as they can reduce charging efficiency.

Step 5: Monitor the Charging Process

Once connected, the lock will begin charging immediately. You’ll see a small LED light near the charging port—usually green or blue—indicating active charging. The EufySecurity app will also update the battery percentage in real time.

Charging typically takes 4 to 6 hours for a full charge from 0%. If the battery was only partially drained, it may take less time. Avoid unplugging before it reaches 100% unless absolutely necessary.

Step 6: Disconnect and Reinstall

When the battery reaches 100%, unplug the cable from the wall first, then gently remove it from the lock. If you tilted the lock to access the port, carefully reposition it and tighten the mounting screws. Make sure the lock is securely attached and functions properly.

Test the lock by using the app to unlock, checking the video feed, and ensuring all features are responsive.

Best Practices for Charging Your Eufy Video Smart Lock

To maximize battery life and performance, follow these best practices:

Charge in a Controlled Environment

Always charge your Eufy Video Smart Lock indoors, in a dry, room-temperature area. Extreme heat (above 95°F/35°C) or cold (below 32°F/0°C) can damage lithium-ion batteries and reduce their lifespan. Avoid charging near heaters, radiators, or in direct sunlight.

Use Only Official Accessories

Eufy designs its charging cables and adapters to meet strict safety and performance standards. Using third-party or counterfeit chargers can lead to overheating, slow charging, or permanent damage. Stick to Eufy-branded products to protect your warranty and device.

Avoid Overcharging

While modern lithium-ion batteries have built-in protection against overcharging, it’s still best to unplug the device once it reaches 100%. Leaving it plugged in for extended periods can generate excess heat and stress the battery over time.

Charge Before Long Periods of Non-Use

If you’re going on vacation or won’t be using the lock for a week or more, charge it to at least 50% before leaving. This prevents deep discharge, which can permanently reduce battery capacity.

Clean the Charging Port Regularly

Dust, dirt, or moisture can accumulate in the charging port and interfere with connectivity. Use a dry, soft brush or compressed air to gently clean the port every few months. Never use water or cleaning fluids.

Enable Low Power Mode (If Available)

Some Eufy models offer a “Low Power Mode” in the app settings. This reduces video quality and motion sensitivity to extend battery life between charges. Use it during periods of low activity, like when you’re home all day.

Troubleshooting Common Charging Issues

Even with proper care, you might encounter charging problems. Here’s how to resolve the most common issues:

The Lock Won’t Charge

If the battery icon doesn’t change or the LED light doesn’t turn on, check the following:

• Ensure the charging cable is fully inserted and not damaged.
• Test the power outlet with another device.
• Try a different USB-C cable (only if it’s Eufy-certified).
• Restart the lock by removing and reinserting the battery (if removable) or power-cycling the device.

If none of these work, contact Eufy support.

Charging Is Very Slow

Slow charging can result from a weak power source, a damaged cable, or a faulty adapter. Always use the original adapter and plug directly into a wall outlet. Avoid USB hubs or low-power ports.

Battery Drains Quickly After Charging

If the battery drops rapidly after a full charge, it may indicate a aging battery or a software issue. Update the EufySecurity app and lock firmware to the latest version. If the problem persists, the battery may need replacement—contact Eufy for service.

LED Light Flashes or Doesn’t Turn On

A flashing LED can signal a connection issue or low battery. Reconnect the cable firmly and wait a few minutes. If the light remains off, the battery may be completely dead and need a longer initial charge (up to 8 hours).

App Shows Incorrect Battery Level

Sometimes the app may display outdated information. Force-close the app, restart your phone, and reopen it. The battery percentage should update within a few seconds.

How Often Should You Charge Your Eufy Video Smart Lock?

The frequency of charging depends on usage, environment, and settings. On average, the Eufy Video Smart Lock battery lasts 2 to 3 months on a single charge under normal conditions. However, heavy use—such as frequent video streaming, motion alerts, or nighttime operation—can reduce this to 4–6 weeks.

To maintain optimal performance:

• Charge every 2 months if used moderately.
• Charge every 4–6 weeks if you frequently view live video or receive many motion alerts.
• Charge immediately after receiving a low battery alert.

Regular charging prevents deep discharge and keeps your lock ready when you need it.

Maintaining Your Eufy Video Smart Lock Battery Long-Term

Battery health declines over time, but proper care can slow this process. Here’s how to extend the life of your Eufy Video Smart Lock battery:

Avoid Full Discharge

Lithium-ion batteries last longest when kept between 20% and 80%. Try not to let the battery drop to 0% regularly. Recharge when it reaches 20–30%.

Store Properly If Not in Use

If you’re replacing the lock or not using it for an extended period, store it in a cool, dry place with a 50% charge. Check and recharge every 3 months.

Update Firmware Regularly

Eufy releases firmware updates that improve power management and battery efficiency. Enable automatic updates in the app to stay current.

Monitor Usage Patterns

Use the EufySecurity app to review battery usage history. If you notice a sudden drop in performance, it may be time for a battery check or replacement.

Conclusion

Charging your Eufy Video Smart Lock battery is a simple but vital task that ensures your smart home remains secure and functional. By following the steps in this guide—recognizing low battery signs, using the right equipment, and maintaining good charging habits—you can keep your lock running smoothly for years to come.

Remember, consistency is key. Regular charging, proper storage, and using official accessories will protect your investment and give you peace of mind. Whether you’re a tech enthusiast or just want a reliable front door solution, taking care of your Eufy Video Smart Lock battery is one of the easiest ways to enhance your home security experience.

Now that you know how to charge your Eufy Video Smart Lock battery, you’re ready to enjoy uninterrupted access, crystal-clear video, and smart convenience—every day.