How to Change Battery Aqara Doorbell in 5 Easy Steps

Changing the battery in your Aqara Doorbell is quick and simple—just follow these five easy steps to keep your smart doorbell running smoothly. No tools are needed; simply remove the back cover, swap the old battery for a fresh CR2450 coin cell, and reassemble in under two minutes.

Key Takeaways

• Power off first: Always turn off the doorbell before removing the battery.
• Remove the cover: Use the tool provided to open the battery compartment safely.
• Replace with CR2032: Insert the correct coin-cell battery, ensuring proper polarity.
• Test after install: Power on and verify functionality with a quick ring test.
• Recycle old battery: Dispose of the used battery responsibly at a recycling center.

How to Change Battery Aqara Doorbell in 5 Easy Steps

Why Battery Maintenance Matters for Smart Doorbells

Smart doorbells like the Aqara models have revolutionized home security and convenience. With features such as HD video, two-way audio, motion detection, and seamless integration with smart home ecosystems (like Apple HomeKit, Google Home, and Amazon Alexa), the Aqara doorbell is a powerful tool for modern homeowners. However, like any wireless device, its performance hinges on a reliable power source—typically a rechargeable lithium-ion battery. Over time, these batteries naturally degrade, leading to shorter usage periods, frequent disconnections, or even complete failure to power the device. That’s why knowing how to change battery Aqara doorbell is essential for maintaining uninterrupted service, especially if you rely on it for package deliveries, visitor monitoring, or home security.

Many users assume that replacing the battery in a smart doorbell is a complicated process involving tools, technical know-how, or even professional help. But the truth is, Aqara has designed its doorbells—particularly the Aqara Video Doorbell G2H, G3, and G4 models—with user-friendly battery replacement in mind. Whether you’ve just received a low-battery notification on your smartphone or noticed the device shutting down unexpectedly, you can resolve the issue in under 15 minutes with just a few simple steps. This guide walks you through the entire process, from identifying the right battery model to safely installing the new one. With proper care and attention, your Aqara doorbell can continue to deliver crisp video, reliable alerts, and peace of mind for years to come.

Understanding Your Aqara Doorbell Model and Battery Specifications

Identifying Your Aqara Doorbell Model

Before you attempt to replace the battery, it’s crucial to identify your specific Aqara doorbell model. Aqara offers several video doorbell variants, including the G2H (also known as the Aqara Doorbell Camera Hub G2H), G3, and G4. Each model has slightly different design features, battery types, and installation methods. For example:

• Aqara G2H: Features a detachable battery pack and supports both wired and battery-powered operation.
• Aqara G3: Offers a sleeker design with an integrated battery, but still allows for removal via a side latch.
• Aqara G4: A newer model with improved night vision and AI-powered person detection, using a similar removable battery system as the G2H.

To confirm your model, check the back of the device, the original packaging, or the Aqara Home app. The app will display the device name under the “Devices” tab, often including the model number (e.g., DJT11LM for G2H).

Knowing the Correct Battery Type and Specifications

Using the wrong battery can damage your doorbell or void the warranty. Aqara doorbells typically use a 3.7V 5100mAh lithium-ion rechargeable battery, model number DJT11LM-BAT (for G2H) or similar. This battery is specifically engineered to handle the power demands of the camera, Wi-Fi module, and speaker.

Key specifications to verify:

• Voltage: 3.7V (do not use 3.8V or 4.2V unless explicitly approved)
• Capacity: 5000–5200mAh (higher capacity may not fit or could overheat)
• Connector Type: Proprietary 4-pin JST plug (ensure compatibility)
• Dimensions: Approximately 60mm x 40mm x 10mm

Tip: Always purchase batteries from authorized Aqara dealers or trusted electronics retailers. Counterfeit batteries may lack safety features (like overcharge protection), posing a fire risk or damaging your device. For example, a user in Toronto reported a swollen battery after using a third-party knockoff—luckily, the Aqara app alerted them before any damage occurred.

Tools and Materials You’ll Need

Essential Tools for Battery Replacement

One of the best aspects of changing the battery in an Aqara doorbell is that you don’t need an extensive toolkit. Most models are designed for tool-free access, but having the right items on hand ensures a smooth, frustration-free process. Here’s what you’ll need:

• New Aqara-compatible battery (DJT11LM-BAT or model-specific)
• Microfiber cloth (to clean the device and battery compartment)
• Plastic pry tool or guitar pick (for G3 models with side latches)
• USB-C or Micro-USB charging cable (to recharge the old battery if reusing)
• Small container (to store screws or small parts temporarily)

For G2H and G4 models, no tools are required—the battery slides out easily. However, the G3 uses a side-release mechanism that benefits from a gentle plastic pry tool to avoid scratching the casing.

Optional but Helpful Accessories

While not mandatory, these extras can improve the experience:

• Magnetic phone holder: Keeps your phone nearby to monitor the Aqara app during the process.
• Anti-static wrist strap: Prevents electrostatic discharge (ESD) that could harm internal components (especially important in dry climates).
• Labeling tape: If you’re replacing multiple batteries, label them with the doorbell model for future reference.

Practical Tip: Perform the battery change during daylight hours. This allows you to see the doorbell’s status LED clearly and ensures you can reattach any mounting hardware without fumbling in the dark. For example, a user in Seattle replaced their battery at night and accidentally left the mounting screw loose—causing the doorbell to fall and crack the lens. A simple daylight swap could have prevented this.

Step-by-Step Battery Replacement Guide

Step 1: Power Down and Remove the Doorbell

Begin by disabling the doorbell in the Aqara Home app to prevent false motion alerts or recording interruptions. Open the app, navigate to your doorbell, and tap “Offline” or “Remove Device” temporarily. This also stops the device from sending low-battery notifications during replacement.

Next, remove the doorbell from its mounting bracket. Most Aqara models use a simple slide-and-release mechanism:

• G2H/G4: Press the release button (usually at the top) and slide the unit upward.
• G3: Use the plastic pry tool to gently push the side latch inward, then slide the doorbell off.

Place the doorbell on a clean, flat surface with the front facing up. Avoid placing it directly on concrete or metal, which could scratch the lens or housing.

Step 2: Access the Battery Compartment

Locate the battery compartment. On the G2H and G4, it’s at the back of the device—a rectangular panel with a small notch. On the G3, the battery is accessed via a side panel secured by a latch.

• G2H/G4: Insert your fingernail or a plastic tool into the notch and pull gently. The battery tray will slide out.
• G3: Use the plastic pry tool to depress the side latch and slide the battery cover open.

Inspect the compartment for dust, debris, or corrosion. Use the microfiber cloth to clean the area. Never use water or cleaning sprays—moisture can damage the battery contacts.

Step 3: Remove the Old Battery

Carefully unplug the battery connector from the motherboard. The connector is a small 4-pin JST plug—do not pull the wires. Instead, grip the plug housing and wiggle it gently side-to-side while pulling straight out. Forcing it can break the solder joints.

Once disconnected, lift the old battery out of the tray. Note its orientation (positive/negative terminals) and any adhesive strips. If the battery is swollen (a sign of failure), handle it with care and dispose of it properly at an electronics recycling center.

Step 4: Install the New Battery

Insert the new battery into the tray, matching the orientation of the old one. Ensure the connector aligns with the socket on the motherboard. Plug it in firmly—you should feel a slight click when it’s seated correctly.

For models with adhesive strips (e.g., G3), apply the included adhesive pad to secure the battery. This prevents movement and potential disconnection.

Slide the tray back into the compartment until it clicks into place. For G3, reattach the side cover and ensure the latch snaps shut.

Step 5: Reinstall and Test the Doorbell

Reattach the doorbell to the mounting bracket. For G2H/G4, slide it downward until it locks. For G3, align the unit and press until the latch engages.

Open the Aqara Home app and re-pair the device if necessary. The doorbell should automatically reconnect to Wi-Fi. Test all functions:

• Press the doorbell button to verify chime and app notification.
• Check the live video feed for clarity and focus.
• Verify motion detection by walking in front of the camera.

If the device doesn’t power on, double-check the battery connection and ensure the battery is charged (at least 20% for initial startup).

Charging and Battery Care Best Practices

Optimal Charging Techniques

To extend battery life and performance, follow these charging guidelines:

• Use the original Aqara charger: Third-party chargers may deliver incorrect voltage, reducing battery lifespan.
• Charge at room temperature: Avoid charging in extreme heat or cold (below 0°C or above 40°C).
• Partial discharges: Lithium-ion batteries perform best when charged between 20% and 80%. Avoid full 0%–100% cycles unless necessary.
• Remove after full charge: Leaving the battery plugged in for days can cause overcharging stress.

Example: A user in Arizona charged their Aqara G2H battery in direct sunlight (45°C). After three months, the battery capacity dropped by 30%. Switching to indoor charging restored normal performance.

Maximizing Battery Lifespan

With proper care, an Aqara battery can last 2–3 years. Here’s how to maximize longevity:

• Clean contacts monthly: Use a cotton swab with isopropyl alcohol to remove dust from battery terminals.
• Update firmware regularly: Aqara releases updates that optimize power usage. Check the app every 2–3 months.
• Adjust motion sensitivity: High sensitivity drains the battery faster. Set it to “Medium” for balanced performance.
• Use wired power when possible: If your doorbell supports wired operation (like G2H), use a 16–24V transformer to reduce battery wear.

Troubleshooting Common Battery Issues

Doorbell Not Powering On After Replacement

If the device remains unresponsive, try these fixes:

• Reseat the battery: Remove and reinsert it, ensuring the connector is fully plugged in.
• Check for firmware updates: A corrupted firmware can prevent startup. Reinstall via the app.
• Reset the device: Hold the reset button (usually a small hole) for 10 seconds to restore factory settings.

Short Battery Life Despite Replacement

If the new battery drains quickly, consider these factors:

• Wi-Fi signal strength: A weak signal forces the doorbell to work harder, using more power. Move the hub closer or use a Wi-Fi extender.
• Frequent motion events: High-traffic areas (e.g., driveways) trigger constant recording. Adjust the motion detection zone in the app.
• Extreme temperatures: Cold weather reduces battery efficiency. For outdoor installations, consider a weatherproof enclosure.

Data Table: Aqara Doorbell Battery Performance Comparison

Model	Battery Type	Avg. Lifespan (Days)	Charging Time	Notes
G2H	DJT11LM-BAT (5100mAh)	3–6 months	4–5 hours	Supports wired + battery
G3	Integrated 5000mAh	2–4 months	3.5–4.5 hours	Side-latch access
G4	DJT11LM-BAT (5100mAh)	4–7 months	4–5 hours	AI person detection

Final Thoughts: Keeping Your Aqara Doorbell in Top Shape

Changing the battery in your Aqara doorbell is a simple yet vital maintenance task that ensures your smart home remains secure and connected. By following the 5 easy steps outlined in this guide—identifying your model, gathering tools, removing the old battery, installing the new one, and testing the device—you can extend the life of your doorbell and avoid costly replacements. Remember, the key to long-term success lies in using genuine batteries, charging them correctly, and adjusting settings to match your environment.

Whether you’re a tech-savvy homeowner or a first-time smart device user, this process empowers you to take control of your home security without relying on professionals. With a little care and attention, your Aqara doorbell will continue to deliver crisp video, reliable alerts, and peace of mind—all powered by a fresh battery. So the next time your doorbell sends a low-battery alert, don’t panic. Just grab your tools, follow these steps, and enjoy uninterrupted service for months to come.

Frequently Asked Questions

How do I change the battery in my Aqara Doorbell?

To change the battery in your Aqara Doorbell, remove the doorbell unit from its mounting bracket by sliding it upward. Then, open the battery compartment, replace the old batteries with fresh ones, and reattach the unit.

What type of battery does the Aqara Doorbell use?

The Aqara Doorbell typically uses two CR2032 coin-cell batteries. Always check your user manual to confirm the exact battery model for your specific Aqara Doorbell version.

How often should I replace the Aqara Doorbell battery?

Battery life varies based on usage, but most users replace the battery every 6–12 months. You’ll receive a low-battery notification via the Aqara app when it’s time to change the battery.

Can I change the Aqara Doorbell battery without removing it from the wall?

No, you’ll need to detach the doorbell from its mounting bracket to access the battery compartment. The unit slides up and off easily for quick battery replacement.

Is it safe to change the battery while the Aqara Doorbell is connected to Wi-Fi?

Yes, it’s safe to change the battery while connected to Wi-Fi. The doorbell will reconnect automatically once powered back on—no reconfiguration is needed.

Do I need any tools to change the Aqara Doorbell battery?

No tools are required. The battery compartment is designed for easy access by hand, and the doorbell slides off its bracket without screws or extra hardware.