How to Replace Aqara Doorbell Battery in 5 Easy Steps

Replacing your Aqara doorbell battery is quick and tool-free—just pop off the back cover, swap the old battery, and reattach. This simple 5-step process ensures your smart doorbell stays powered and functional without any technical hassle. Always use a high-quality CR2032 battery for optimal performance and longevity.

Key Takeaways

• Power off first: Always disconnect the doorbell before replacing the battery.
• Use correct battery: Replace with a CR2450 coin cell for optimal performance.
• Remove back cover: Gently pry open the doorbell’s rear panel with a tool.
• Check battery orientation: Ensure the new battery’s positive side faces up.
• Reassemble securely: Snap the cover back on to avoid water damage.
• Test immediately: Verify doorbell functionality after battery replacement.

Why Replacing Your Aqara Doorbell Battery Matters

Smart doorbells have revolutionized home security, offering convenience, real-time notifications, and peace of mind. Among the most trusted brands in this space is Aqara, known for its sleek designs, reliable connectivity, and integration with smart home ecosystems like Apple HomeKit, Google Assistant, and Amazon Alexa. However, even the most advanced smart doorbell—such as the Aqara Video Doorbell G2H or the Aqara Doorbell H1—relies on a battery to function. Over time, that battery will deplete, and when it does, your doorbell may stop sending alerts, recording video, or even ringing. That’s why knowing how to replace your Aqara doorbell battery is not just a maintenance task—it’s essential for keeping your home secure.

Unlike wired doorbells that draw power from your home’s electrical system, most Aqara doorbells are wireless and battery-powered, which makes them easy to install but also means they require regular battery checks and replacements. Depending on usage, battery life typically ranges from 3 to 6 months. Factors like frequent video recording, motion detection sensitivity, extreme temperatures, and Wi-Fi signal strength can all impact battery longevity. Ignoring a low battery can leave your home vulnerable during critical moments—like when a delivery driver rings or an unexpected visitor appears. This guide walks you through how to replace your Aqara doorbell battery in 5 easy steps, ensuring your smart home stays alert, responsive, and protected.

Understanding Your Aqara Doorbell Model and Battery Type

Before you even think about replacing the battery, it’s crucial to identify your specific Aqara doorbell model and the type of battery it uses. Aqara offers several models, each with slightly different designs and battery specifications. Using the wrong battery or mishandling the device can lead to malfunctions or even damage.

Common Aqara Doorbell Models and Their Batteries

Here are the most popular Aqara doorbell models and their respective battery types:

• Aqara Doorbell H1 (Wireless): Uses a built-in rechargeable lithium-ion battery (3.7V, 2000mAh). Not user-replaceable in the traditional sense—requires charging via USB-C.
• Aqara Video Doorbell G2H: Features a removable 18650 lithium-ion battery (3.7V, 2600mAh). This is the model most users will need to replace.
• Aqara Doorbell G3: Also uses a removable 18650 battery (3.7V, 2600mAh), similar to the G2H but with improved camera and AI detection.
• Aqara Doorbell G2H Pro: Upgraded version with enhanced night vision and a slightly larger 2900mAh 18650 battery.

Why Battery Type Matters

Using the correct 18650 lithium-ion battery is critical. These batteries are cylindrical, 18mm in diameter and 65mm long, and are commonly used in flashlights, vape devices, and other electronics. However, not all 18650 batteries are created equal. For your Aqara doorbell, you need:

• Protected batteries: These include built-in circuitry to prevent overcharging, over-discharging, and short circuits.
• Flat-top vs. button-top: Most Aqara doorbells require flat-top 18650 batteries. Using a button-top may prevent proper contact.
• Capacity (mAh): Higher mAh means longer life. A 2600mAh battery typically lasts 4-5 months with average use (10-15 activations per day).

Pro Tip: Always purchase 18650 batteries from reputable brands like Efest, Samsung, Sony, or Panasonic. Avoid ultra-cheap batteries from unknown sellers—they may lack protection circuits or have inaccurate capacity ratings, which can damage your doorbell or reduce performance.

Tools and Supplies You’ll Need

Replacing your Aqara doorbell battery is a simple process, but having the right tools and supplies on hand ensures a smooth, damage-free experience. Here’s a checklist of everything you need before you begin.

Essential Tools and Materials

• Replacement 18650 battery (3.7V, 2600mAh or higher): As discussed, choose a protected, flat-top model compatible with your doorbell.
• Phillips #0 or #1 screwdriver: Used to open the doorbell housing on models like the G2H and G3.
• Plastic pry tool or guitar pick: Helps gently separate the doorbell’s front and back panels without scratching the surface.
• Clean microfiber cloth: For wiping dust or debris from the doorbell interior.
• USB-C charging cable and power adapter (for H1 model): If you’re recharging instead of replacing.
• Work surface (e.g., table or desk): Provides a stable, well-lit area to work on.
• Optional: Anti-static wrist strap: Prevents electrostatic discharge that could damage sensitive electronics (especially important in dry climates).

Where to Buy Replacement Batteries

You can purchase high-quality 18650 batteries from:

• Specialty electronics stores: Such as Battery Junction or All-Battery.com.
• Online marketplaces: Amazon (search for “protected 18650 battery 2600mAh flat top”) or eBay—ensure the seller has high ratings and authentic products.
• Local vape shops: Many carry 18650 batteries and can help you choose the right type.

Cost estimate: A single protected 18650 battery costs between $8 and $15. Buying a 2-pack or 4-pack can save money if you plan to replace batteries regularly or want a spare on hand.

Pro Tip: Label your replacement battery with the date of purchase. This helps you track its lifespan and plan future replacements. Lithium-ion batteries degrade over time, even when not in use, so don’t stockpile too many.

Step-by-Step Guide: How to Replace Aqara Doorbell Battery

Now that you’ve identified your model, gathered your tools, and purchased the right battery, it’s time to replace it. Follow these 5 easy steps to safely and effectively swap out your Aqara doorbell battery.

Step 1: Power Down and Remove the Doorbell from the Mount

Before touching any internal components, ensure the doorbell is not actively recording or streaming. While Aqara doorbells don’t have a physical power switch, removing them from their wall mount cuts power to the sensors and camera.

• Locate the release mechanism on the back or bottom of the doorbell. Most models use a small tab or lever.
• Gently press or slide the release to detach the doorbell from the mounting bracket.
• Lay the doorbell on a clean, flat surface with the front facing up.

Tip: If your doorbell is mounted high up, use a step ladder with a spotter. Safety first!

Step 2: Open the Doorbell Housing

The housing protects the internal electronics and battery. Opening it requires care to avoid damaging clips or connectors.

• For G2H, G3, and G2H Pro: Use a Phillips screwdriver to remove the two small screws at the bottom edge of the doorbell.
• Once screws are removed, insert a plastic pry tool into the seam between the front and back panels.
• Gently work the tool around the perimeter, releasing the plastic clips. Start from the bottom and move to the sides.
• Lift the front panel off. You’ll now see the battery compartment.

Caution: Do not force the panels apart. If a clip resists, reposition the tool and apply gentle pressure. Forcing it can break the plastic.

Step 3: Remove the Old Battery

The battery is typically secured with a small latch or foam padding. Handle it carefully to avoid shorting the terminals.

• Locate the battery—it’s a silver cylinder with positive (+) and negative (-) markings.
• Release any retention clips or foam padding holding the battery in place.
• Grasp the battery by its body (not the terminals) and pull it straight out.
• Inspect the battery compartment for dust, moisture, or corrosion. Wipe it clean with a microfiber cloth if needed.

Pro Tip: Take a photo of the battery orientation before removing it. This ensures you insert the new battery correctly—positive terminal aligned with the + marking.

Step 4: Insert the New Battery

Inserting the new battery correctly is crucial for proper function and safety.

• Check the new battery for any protective plastic caps (usually on the positive end). Remove them before insertion.
• Align the positive (+) end of the battery with the + marking in the compartment.
• Slide the battery in firmly until it’s flush with the housing.
• Reinstall any foam padding or retention clips to secure the battery.

Warning: Never insert a battery backward. This can damage the doorbell’s internal circuitry or cause the battery to overheat.

Step 5: Reassemble and Reinstall the Doorbell

Now that the new battery is in place, it’s time to put everything back together.

• Carefully align the front and back panels. Ensure all clips are engaged before pressing them together.
• Reinsert and tighten the screws (if applicable).
• Snap the doorbell back onto the wall mount until you hear a click.
• Wait 30-60 seconds for the doorbell to power on and reconnect to Wi-Fi.
• Open the Aqara app to verify the battery level (should show 100%) and check for firmware updates.

Bonus Tip: Test the doorbell by pressing the button and confirming you receive a notification on your phone. This confirms successful reassembly and functionality.

Battery Life Optimization: Extending Time Between Replacements

While replacing the battery is straightforward, wouldn’t it be great to do it less often? With a few smart adjustments, you can significantly extend your Aqara doorbell’s battery life, reducing maintenance and improving reliability.

Adjust Motion Detection Settings

Motion detection is one of the biggest battery drainers. By fine-tuning these settings, you can reduce unnecessary recordings.

• Lower sensitivity: In the Aqara app, go to Device Settings > Motion Detection > Sensitivity and set it to “Low” or “Medium.” This reduces false triggers from passing cars or swaying trees.
• Set detection zones: Exclude areas like busy streets or sidewalks. Only monitor your porch or walkway.
• Enable AI detection: Models like the G3 use AI to distinguish between people, pets, and vehicles. Enable this to avoid recording every leaf that blows by.

Optimize Video Quality and Storage

Higher video resolution and longer recording times use more power.

• Lower video resolution: Set to 720p instead of 1080p if you don’t need full HD.
• Shorten recording duration: Reduce from 30 seconds to 15 seconds per event.
• Use cloud storage wisely: If using Aqara Cloud, limit uploads to “Event Only” instead of continuous recording.

Improve Wi-Fi Signal and Reduce Transmission Time

Weak Wi-Fi forces the doorbell to use more power to maintain a connection.

• Move your router closer or use a Wi-Fi extender to boost signal strength near the door.
• Use 2.4GHz network: Aqara doorbells don’t support 5GHz, so ensure your router broadcasts a strong 2.4GHz signal.
• Reduce notification frequency: In the app, disable “Repeat Alert” or set a 5-minute cooldown between notifications.

Environmental Considerations

Extreme temperatures affect lithium-ion batteries.

• Winter: Cold temperatures can reduce battery capacity by up to 30%. Consider installing a protective cover or bringing the doorbell indoors during extreme cold.
• Summer: Heat can degrade battery life over time. Avoid direct sunlight if possible.

With these optimizations, many users report extending battery life from 4 months to 6-7 months—a 50% improvement!

Common Mistakes to Avoid When Replacing the Battery

Even simple tasks like battery replacement can go wrong if you’re not careful. Here are the most common mistakes users make—and how to avoid them.

Using the Wrong Battery

As mentioned earlier, using an unprotected, button-top, or low-quality 18650 battery can lead to:

• Overheating or swelling
• Shortened battery life
• Damage to the doorbell’s charging circuit

Solution: Always verify the battery specs match your model. When in doubt, consult the Aqara user manual or contact customer support.

Forcing the Housing Open

Using a metal screwdriver or excessive force to pry open the doorbell can crack the plastic or damage internal connectors.

Solution: Use a plastic pry tool and work slowly around the seams. If a clip resists, reposition—don’t force it.

Incorrect Battery Orientation

Inserting the battery backward can cause the doorbell to fail to power on or, in rare cases, damage the circuit board.

Solution: Double-check the + and – markings before inserting. Take a photo of the old battery’s orientation as a reference.

Skipping the App Check

After reassembly, many users forget to verify the doorbell is working properly.

Solution: Always open the Aqara app to confirm:

• Battery level is 100%
• Device is online
• Firmware is up to date
• Notifications are enabled

Ignoring Battery Disposal

Lithium-ion batteries should never be thrown in the trash. They contain toxic materials and can cause fires in landfills.

Solution: Take old batteries to a recycling center or use a battery disposal program (e.g., Call2Recycle). Many electronics stores offer free drop-off.

Data Table: Aqara Doorbell Battery Comparison

Model	Battery Type	Capacity (mAh)	Avg. Battery Life	Rechargeable?	User-Replaceable?
Aqara Doorbell H1	Built-in Li-ion	2000	3-4 months	Yes (USB-C)	No (requires charging)
Aqara Video Doorbell G2H	18650 Li-ion	2600	4-5 months	Yes (removable)	Yes
Aqara Doorbell G3	18650 Li-ion	2600	4-6 months	Yes (removable)	Yes
Aqara Doorbell G2H Pro	18650 Li-ion	2900	5-6 months	Yes (removable)	Yes

Conclusion: Keep Your Aqara Doorbell Running Smoothly

Replacing your Aqara doorbell battery doesn’t have to be a daunting task. With the right tools, a high-quality 18650 battery, and this 5-step guide, you can complete the process in under 15 minutes. Whether you own the G2H, G3, or H1 model, maintaining your doorbell’s battery ensures uninterrupted security, timely alerts, and reliable performance.

Remember, the key to hassle-free smart home maintenance is proactivity. Monitor your battery level in the Aqara app monthly, optimize settings to extend life, and always have a spare battery on hand. By avoiding common mistakes and following best practices, you’ll keep your Aqara doorbell functioning at its best—protecting your home, one ring at a time.

Now that you know how to replace your Aqara doorbell battery in 5 easy steps, there’s no reason to let a dead battery compromise your home’s safety. Take action today, and enjoy the peace of mind that comes with a fully powered smart doorbell.

Frequently Asked Questions

How do I replace the Aqara doorbell battery?

To replace the Aqara doorbell battery, remove the doorbell from its mount, open the battery compartment, swap the old batteries with new ones (typically 2x CR2032), and reattach the device. Ensure the polarity is correct before closing the compartment.

What type of battery does the Aqara doorbell use?

The Aqara doorbell typically uses two CR2032 coin-cell batteries. Always check your model’s manual to confirm, as some versions may vary slightly in power requirements.

How long does the Aqara doorbell battery last before needing replacement?

The battery life of an Aqara doorbell usually lasts 6–12 months, depending on usage and environmental factors like temperature. Frequent motion detection or live streaming can shorten battery lifespan.

Can I replace the Aqara doorbell battery without removing the entire unit?

Yes, most Aqara doorbell models allow you to slide or pop open the front cover to access the battery compartment without detaching the entire device from the wall mount.

Why is my Aqara doorbell not working after replacing the battery?

If your Aqara doorbell doesn’t work post-battery replacement, ensure the batteries are correctly inserted with proper polarity. Also, check for firmware updates or reset the device via the Aqara app.

Is it safe to replace the Aqara doorbell battery myself?

Yes, replacing the Aqara doorbell battery is safe and designed for user convenience. Just power off the device via the app, use non-rechargeable CR2032 batteries, and avoid touching internal circuitry.