How to Change Battery in Aqara Doorbell Quick Guide

Changing the battery in your Aqara Doorbell is quick and tool-free—simply slide the front cover upward to access the battery compartment. Use a CR2032 coin cell battery, insert it with the positive side facing up, and snap the cover back into place for a secure fit. Ensure your doorbell reconnects to the Aqara app to confirm it’s working properly after replacement.

Key Takeaways

• Power off first: Always disconnect power before replacing the battery for safety.
• Use correct battery type: Insert only CR2032 coin cell batteries for optimal performance.
• Open cover carefully: Gently pry the back panel to avoid damaging clips.
• Check battery orientation: Ensure the positive (+) side faces up during installation.
• Test after replacement: Confirm the doorbell works before reattaching the cover.
• Dispose responsibly: Recycle old batteries at designated collection points.

Why Your Aqara Doorbell Battery Matters

Smart doorbells have revolutionized home security, and the Aqara Doorbell stands out as a reliable, feature-packed option for homeowners seeking seamless integration with their smart home ecosystems. Whether you’re using it with Apple HomeKit, Google Home, or Alexa, the Aqara Doorbell offers crisp video, motion detection, two-way audio, and local storage—all without the need for a monthly subscription in many cases. However, like all battery-powered smart devices, its performance hinges on a single, crucial component: the battery.

One of the most common maintenance tasks for the Aqara Doorbell is changing or replacing the battery. Unlike hardwired models, the Aqara Doorbell relies on a rechargeable lithium-ion battery, typically the CR123A or an internal 5200mAh Li-ion pack, depending on the model (such as the Aqara Video Doorbell G2H Pro or the Aqara D1). When the battery runs low, you’ll notice reduced performance—delayed alerts, poor video quality, or even complete device failure. Knowing how to change the battery in your Aqara Doorbell not only extends the lifespan of the device but also ensures uninterrupted protection for your home. This guide walks you through every step, from preparation to reassembly, with practical tips and expert advice to make the process quick, safe, and foolproof.

Understanding Your Aqara Doorbell Model and Battery Type

Identifying Your Aqara Doorbell Model

Before attempting to change the battery, it’s essential to identify which Aqara Doorbell model you own. The most popular models include:

• Aqara Video Doorbell G2H – Features 1080p HD video, HomeKit Secure Video support, and a 5200mAh internal battery.
• Aqara Video Doorbell G2H Pro – Upgraded version with 2K resolution, wider field of view, and improved night vision.
• Aqara D1 Wireless Doorbell – A simpler, non-video model with motion detection and chime functionality, often using CR123A batteries.

You can usually find the model number on the back of the device, in the Aqara app under “Device Information,” or in the original packaging. Identifying your model ensures you purchase the correct replacement battery and follow the right procedure.

Battery Specifications and Compatibility

Different Aqara models use different battery types:

• Internal 5200mAh Li-ion battery – Found in G2H and G2H Pro models. This is a non-user-replaceable pack but can be recharged via USB-C or a proprietary charging dock.
• CR123A 3V Lithium Battery (non-rechargeable) – Used in older or non-video models like the Aqara D1. These are single-use and must be replaced when depleted.
• Rechargeable 18650 Li-ion cells – In some DIY or third-party retrofits, but not standard in official Aqara models.

Using the wrong battery type can damage your doorbell or void the warranty. Always refer to the official Aqara documentation or support site to confirm compatibility. For example, the G2H Pro uses a built-in battery, so “changing” it means recharging or, in rare cases, professional replacement. In contrast, the D1 model requires physically swapping out CR123A batteries.

Signs Your Battery Needs Attention

How do you know when it’s time to change or recharge your Aqara Doorbell battery? Watch for these common indicators:

• Frequent low-battery alerts in the Aqara app (e.g., “Battery below 20%”).
• Delayed or missed motion detection – The sensor may not activate promptly.
• Video feed stuttering or disconnecting – Especially during live viewing.
• Doorbell not responding to presses – The chime or app notification fails to trigger.
• LED indicator flashing red – A clear sign of low power on most models.

Proactively monitoring these signs prevents unexpected downtime. The Aqara app typically provides battery percentage and estimated time until depletion, helping you plan maintenance.

Tools and Supplies You’ll Need

Essential Tools for Battery Replacement

Changing the battery in your Aqara Doorbell doesn’t require an engineering degree, but having the right tools makes the process smooth and damage-free. Here’s what you’ll need:

• Precision screwdriver set – Look for a PH00 or PH0 Phillips head screwdriver. Aqara devices use small, recessed screws that require a fine tip.
• Plastic pry tool or guitar pick – To gently separate the front and back casing without scratching the surface.
• Microfiber cloth – For cleaning dust or fingerprints from the camera lens and housing.
• Replacement battery – Either a CR123A (for D1) or a compatible 5200mAh Li-ion pack (for G2H/G2H Pro).
• USB-C charging cable and power adapter – If recharging an internal battery.
• Anti-static wrist strap (optional) – Prevents electrostatic discharge that could damage sensitive electronics.

For CR123A models, you may also need battery holder clips or a replacement battery compartment cover, as these can wear out over time. Always buy high-quality, name-brand batteries (like Panasonic or Duracell) to avoid leakage or poor performance.

Where to Buy Replacement Batteries

You can purchase replacement batteries from several trusted sources:

• Official Aqara website or Amazon Aqara Store – Ensures authenticity and warranty compliance.
• Authorized retailers – Such as B&H Photo, Best Buy, or local smart home stores.
• Third-party battery suppliers – Like Amazon or eBay, but verify seller ratings and product reviews. Avoid counterfeit batteries, which may overheat or fail prematurely.

For the G2H Pro, Aqara sells a charging dock accessory that makes recharging the internal battery much easier than using a cable. This is highly recommended for users who want a clean, wall-mounted charging solution.

Preparing Your Workspace

Choose a clean, well-lit area with a soft surface (like a microfiber cloth or rubber mat) to lay out your tools and the doorbell. Avoid working on concrete or metal surfaces that could cause static discharge or scratch the device. Keep small screws in a magnetic tray or labeled container to avoid losing them. If you’re working outdoors (e.g., on a porch), wait for dry weather—moisture can damage internal components.

Step-by-Step Guide to Changing the Battery

Step 1: Power Down and Remove the Doorbell

Before opening the device, ensure it’s powered off. For models with internal batteries, fully charge the doorbell first if possible—this makes handling easier and reduces the risk of sudden power loss during disassembly. Then:

• Open the Aqara app and check if the doorbell is online.
• Press and hold the doorbell button for 10 seconds to force a shutdown (if supported).
• Use the included removal tool (a small metal pin) to unlock the doorbell from its mounting bracket. Insert the tool into the small hole at the bottom of the device and gently push upward. The doorbell will release with a click.
• Carefully remove the doorbell and place it on your workspace.

Tip: Take a photo of the mounting bracket and wiring (if any) before removal for easier reinstallation.

Step 2: Open the Doorbell Casing

Now, open the housing to access the battery:

• Locate the screws on the back panel—usually 2 to 4 small Phillips screws.
• Use your precision screwdriver to remove them. Place screws in a secure container.
• Insert a plastic pry tool into the seam between the front and back casing. Gently wiggle it around the edges to release the clips. Do not force—these clips can break easily.
• Lift the front cover slowly, exposing the internal components. On G2H models, you’ll see the camera module, speaker, and battery compartment. On D1 models, the CR123A battery is usually visible in a dedicated slot.

Warning: Avoid touching the camera lens or circuit board with bare hands. Oils from your skin can degrade image quality.

Step 3: Remove and Replace the Battery

This step varies by model:

For Aqara D1 (CR123A):

• Locate the battery compartment, typically secured with a small screw or latch.
• Remove the old CR123A battery. Note the orientation (positive/negative ends).
• Insert the new CR123A battery, matching the polarity (+/-) as marked inside the compartment.
• Re-secure the compartment cover.

For Aqara G2H/G2H Pro (Internal Battery):

• The internal battery is not designed for user replacement. Instead, connect the USB-C cable to the port on the back of the device.
• Plug the other end into a 5V/2A power adapter. The LED indicator will turn red (charging) or green (fully charged).
• Wait 3–4 hours for a full charge. Use the Aqara app to monitor battery level.
• If the battery is damaged (swollen, leaking, or not holding charge), contact Aqara support for a professional replacement service. Do not attempt to remove the internal pack yourself—this risks damaging the motherboard.

Step 4: Reassemble the Doorbell

Once the battery is replaced or recharged:

• Align the front and back casing carefully. Ensure all clips are engaged.
• Reinsert the screws and tighten them—don’t over-tighten, or you’ll strip the plastic.
• Wipe the camera lens and housing with a microfiber cloth.
• Reattach the doorbell to the mounting bracket using the removal tool or by sliding it into place until it clicks.

Pro Tip: After reassembly, press the doorbell button to test functionality. Check the app for live feed and motion detection.

Post-Replacement Setup and Testing

Reconnecting to Wi-Fi and Smart Home Ecosystems

After changing the battery, your Aqara Doorbell may need to reconnect to your network:

• Open the Aqara app and navigate to your doorbell.
• If it appears offline, tap “Reconnect” or “Reset Wi-Fi.”
• Follow the on-screen instructions to re-pair with your home Wi-Fi (2.4 GHz only).
• For HomeKit users, re-enter the pairing code if prompted.

Ensure your router is nearby—doorbells often have weaker Wi-Fi antennas than phones or laptops. If connection fails, try moving the doorbell closer to the router temporarily during setup.

Testing Core Features

Verify that all functions work correctly:

• Video quality: Check live feed for clarity and frame rate.
• Motion detection: Wave your hand in front of the camera to trigger an alert.
• Two-way audio: Speak through the app and listen for audio from the doorbell.
• Chime functionality: If using an indoor chime, ensure it rings when the button is pressed.
• Night vision: Test in low light—IR LEDs should activate automatically.

Use the app’s “Device Diagnostics” tool (if available) to check for firmware updates and hardware health.

Optimizing Battery Life After Replacement

To extend battery life between charges or replacements:

• Adjust motion detection sensitivity: Lower sensitivity reduces false alerts and battery drain.
• Shorten video recording duration: Set clips to 15–30 seconds instead of 60.
• Enable “Event-Only” mode: Records only when motion is detected, not 24/7.
• Use a wired power option (if available): Some models support micro-USB or PoE adapters for continuous power.
• Keep firmware updated: New updates often include battery optimization patches.

For CR123A models, consider keeping spare batteries on hand—they typically last 6–12 months, depending on usage.

Common Mistakes and How to Avoid Them

Using Incorrect or Low-Quality Batteries

One of the most frequent errors is using off-brand or expired batteries. CR123A batteries from unknown brands may not deliver consistent voltage, leading to poor performance or sudden shutdowns. Always check expiration dates and buy from reputable suppliers. For internal batteries, never use a third-party Li-ion pack unless explicitly approved by Aqara.

Forcing the Casing Open

Applying too much pressure with a metal tool can crack the plastic housing or break internal clips. Always use a plastic pry tool and work slowly around the edges. If you feel resistance, stop and double-check for hidden screws or latches.

Ignoring Polarity in Battery Compartments

Inserting a CR123A battery backward can damage the circuit board. Double-check the + and – markings on both the battery and the compartment before insertion. Some compartments have raised bumps or indentations to prevent reverse installation—use them as guides.

Skipping the Reconnection Process

After reassembly, don’t assume the doorbell will automatically reconnect to your network. Always verify connectivity in the app. If it doesn’t reconnect, reset Wi-Fi settings and re-pair the device.

Neglecting Environmental Factors

Extreme temperatures (below 0°C or above 40°C) can reduce battery efficiency. If your doorbell is installed in direct sunlight or a cold garage, consider using a protective cover or relocating it. Also, avoid installing near heat sources like HVAC vents.

Data Table: Aqara Doorbell Battery Comparison

Model	Battery Type	Battery Capacity	Expected Lifespan	Rechargeable?	Replacement Difficulty
Aqara G2H	Internal Li-ion	5200mAh	3–6 months (usage-dependent)	Yes (USB-C)	Low (no user replacement)
Aqara G2H Pro	Internal Li-ion	5200mAh	3–6 months	Yes (USB-C or dock)	Low
Aqara D1	CR123A (x1)	1500mAh (approx.)	6–12 months	No	Medium (requires disassembly)
Aqara D1 (Dual Battery)	CR123A (x2)	3000mAh (approx.)	12–18 months	No	Medium

Note: Lifespan estimates are based on average usage (10–15 motion events per day, 30-second clips, Wi-Fi connected). Actual results may vary.

Final Thoughts: Keep Your Aqara Doorbell Running Smoothly

Changing the battery in your Aqara Doorbell is a simple yet essential task that ensures your home security system remains reliable and responsive. Whether you’re recharging an internal Li-ion pack or swapping out CR123A batteries, following the steps in this guide—from identifying your model to testing post-replacement functionality—will keep your doorbell in peak condition. With proper care, your Aqara Doorbell can provide years of seamless performance, delivering peace of mind every time someone rings your door.

Remember, regular maintenance is key. Set a calendar reminder to check your battery every 3–4 months, especially before seasons with extreme weather. Keep spare batteries on hand, use the Aqara app’s alerts, and don’t hesitate to reach out to Aqara support if you encounter issues. By mastering the battery change process, you’re not just maintaining a device—you’re investing in the safety and convenience of your smart home. Stay proactive, stay secure, and enjoy the full benefits of your Aqara Doorbell.

Frequently Asked Questions

How do I change the battery in my Aqara Doorbell?

To change the battery in your Aqara Doorbell, first remove the doorbell from its mounting bracket by sliding it upward. Use a screwdriver to open the battery compartment, replace the old batteries with new CR123A batteries, and reassemble the unit.

What type of battery does the Aqara Doorbell use?

The Aqara Doorbell typically requires two CR123A lithium batteries, which are commonly used for their long life and reliability. Always check your model’s manual to confirm the correct battery type before replacing.

How often do I need to replace the Aqara Doorbell battery?

Battery life varies based on usage, but most Aqara Doorbell models last 6–12 months on a single set of CR123A batteries. Frequent motion detection or live streaming may shorten this timeframe.

Can I use rechargeable batteries in my Aqara Doorbell?

Yes, you can use rechargeable CR123A batteries, but ensure they provide the required voltage (3V). Standard rechargeables may have slightly lower voltage, which could affect performance or battery life.

Why won’t my Aqara Doorbell work after changing the battery?

If your doorbell doesn’t turn on after a battery change, ensure the batteries are correctly inserted with proper polarity. Also, check that the battery compartment is securely closed and the mounting bracket isn’t interfering with power.

How do I know when the Aqara Doorbell battery is low?

The Aqara Doorbell sends a low-battery notification to your Aqara app when it’s time to replace the batteries. You may also notice reduced performance, such as delayed alerts or shorter battery life between changes.