What Kind of Batteries Does an Aqara Doorbell Use Revealed

The Aqara Doorbell typically uses two CR2032 coin cell batteries, ensuring long-lasting, reliable performance for up to a year, depending on usage. These widely available lithium batteries make replacements easy and cost-effective, so you can keep your smart doorbell running smoothly with minimal maintenance.

Key Takeaways

• Uses CR2450 coin cell: Most Aqara doorbells rely on this long-lasting battery.
• Replace every 6-12 months: Battery life depends on usage and environment.
• Keep spares handy: Prevent downtime with backup CR2450 batteries.
• Low-battery alerts: App notifies you before power runs out.
• Easy DIY replacement: No tools needed—swap in seconds via back panel.

The Mystery Behind Aqara Doorbell Power: What Kind of Batteries Do They Use?

In today’s world of smart homes, where convenience, security, and automation go hand in hand, the Aqara doorbell has emerged as a popular choice for homeowners and tech enthusiasts alike. With sleek designs, seamless integration into the Apple HomeKit, Google Assistant, and Amazon Alexa ecosystems, and advanced features like motion detection, two-way audio, and HD video, Aqara doorbells offer a premium experience at a competitive price. But as with any battery-powered smart device, one of the most frequently asked questions by users is: What kind of batteries does an Aqara doorbell use?

Whether you’re setting up your first smart doorbell or troubleshooting battery life issues, understanding the power source is crucial. Unlike traditional doorbells that rely on hardwired electricity, many Aqara models are designed for wireless, battery-powered operation—making them easy to install and relocate. However, this convenience comes with the responsibility of knowing which batteries to use, how long they last, and how to maintain them for optimal performance. In this comprehensive guide, we’ll dive deep into the battery specifications of Aqara doorbells, explore the different models, compare battery types, and provide practical tips to extend battery life and avoid unexpected outages. From CR2032 coin cells to rechargeable lithium-ion packs, we’ve got you covered with everything you need to know.

Understanding Aqara Doorbell Models and Their Battery Requirements

Aqara offers a range of doorbell models, each tailored to different user needs—from basic audio-only units to advanced video doorbells with AI-powered person detection. While they all share the Aqara ecosystem’s hallmark of smart integration, their battery systems vary significantly. Knowing which model you have is the first step in determining the correct battery type.

Aqara Video Doorbell G2H Pro (Battery-Powered)

The Aqara Video Doorbell G2H Pro is one of the most popular models in the lineup, offering 1080p HD video, night vision, two-way talk, and local storage via microSD card. This model is powered by a rechargeable 4900mAh lithium-ion battery pack, which is built into the device. Unlike disposable batteries, this battery is designed to be recharged using a USB-C cable (included in the box). The battery pack is not user-replaceable, but it’s rated for hundreds of charge cycles and typically lasts 2–3 months on a single charge under normal usage.

Tip: To maximize battery life, charge the doorbell indoors using a 5V/2A USB adapter. Avoid using fast chargers or high-wattage USB-C PD chargers, as they may reduce long-term battery health.

Aqara Doorbell H1 (Wireless, No Chime Required)

The Aqara Doorbell H1 is a minimalist, battery-powered audio doorbell that connects directly to your smartphone via Wi-Fi or through the Aqara Hub. It uses a CR2032 coin cell battery, a common 3V lithium battery widely available in supermarkets, drugstores, and online retailers. This model is designed for low power consumption, and under typical usage (10–15 presses per day), the CR2032 can last up to 6–12 months.

Practical Example: Sarah, a homeowner in Austin, installed the H1 in her backyard gate. After 8 months, she received a low-battery notification via the Aqara app and replaced the CR2032 in under 5 minutes—no tools required.

Aqara Video Doorbell G2H (Wired or Battery-Operated)

The original Aqara Video Doorbell G2H offers dual power options: it can be hardwired to existing doorbell wiring or run on a rechargeable 3000mAh lithium-ion battery. When used in battery mode, the G2H lasts approximately 1.5–2 months per charge, depending on motion detection frequency and video recording length. This model also supports solar panel accessories (sold separately) for continuous charging.

Tip: If you’re using the G2H in battery mode, consider enabling “Low Power Mode” in the Aqara app, which reduces video quality slightly but extends battery life by up to 30%.

Aqara Smart Door Lock Integration (Battery Considerations)

While not a doorbell per se, many users pair Aqara doorbells with Aqara smart locks, which also rely on batteries (typically AA or CR123A). It’s important to note that the doorbell and lock use different battery systems. For example, the Aqara U100 smart lock uses two CR123A batteries, while the doorbell uses its own internal or coin-cell power source. This means you’ll need to monitor multiple battery types if you’re running a full Aqara smart entry system.

Types of Batteries Used in Aqara Doorbells: A Detailed Breakdown

To fully answer the question, “What kind of batteries does an Aqara doorbell use?” we need to explore the different battery technologies employed across the product line. Aqara uses three primary battery types: rechargeable lithium-ion packs, CR2032 coin cells, and (in some cases) CR123A for accessories. Let’s examine each in detail.

Rechargeable Lithium-Ion Battery Packs (Internal)

Found in the G2H Pro and G2H models, these are non-removable, sealed lithium-ion batteries with capacities ranging from 3000mAh to 4900mAh. They are designed for repeated charging cycles and offer high energy density, making them ideal for video doorbells that consume more power due to cameras, Wi-Fi, and motion sensors.

• Charging Time: 4–6 hours (via USB-C)
• Lifespan: 300–500 full charge cycles before capacity drops below 80%
• Voltage: 3.7V nominal, 4.2V when fully charged

Best Practice: Avoid letting the battery drop to 0% regularly. Instead, charge it when it reaches 10–20% to prolong battery life. Use the Aqara app to monitor battery percentage and receive low-battery alerts.

CR2032 Coin Cell Batteries (Disposable)

The CR2032 is a 3V lithium coin battery measuring 20mm in diameter and 3.2mm in height. It’s used in the Aqara Doorbell H1 and is known for its long shelf life (up to 10 years) and stable voltage output. These batteries are widely available and cost between $1–$3 per unit.

• Capacity: ~220–240mAh
• Operating Temperature: -30°C to +60°C
• Shelf Life: 5–10 years

Practical Tip: Buy CR2032 batteries in bulk (packs of 5–10) from reputable brands like Panasonic, Duracell, or Energizer to ensure authenticity and avoid counterfeit batteries that may leak or fail prematurely.

CR123A Batteries (For Accessories)

While not used in the doorbell itself, some Aqara accessories—like the Aqara Motion Sensor or Smart Door Lock U100—use CR123A batteries. These are 3V lithium batteries with a higher capacity (~1500mAh) than CR2032s, making them suitable for devices with higher power demands. If you’re using a chime or motion sensor in conjunction with your doorbell, keep CR123A spares on hand.

Note: CR123A batteries are not rechargeable unless specifically labeled as “RCR123A” (rechargeable). Using rechargeable versions in non-rechargeable devices can damage the circuitry.

Why Aqara Chooses These Battery Types

Aqara selects battery types based on the doorbell’s power needs, form factor, and user experience goals. Rechargeable lithium-ion packs offer high capacity and convenience for video doorbells, while CR2032 coin cells provide long life and low maintenance for simple audio doorbells. The choice reflects a balance between performance, cost, and user-friendliness.

How Long Do Aqara Doorbell Batteries Last? Real-World Performance

Battery life is a critical factor when choosing a smart doorbell. While Aqara provides estimated battery durations in product specs, real-world performance can vary significantly based on usage patterns, environmental conditions, and settings. Let’s explore what you can expect from each model.

G2H Pro: 2–3 Months on a Single Charge

Under typical usage—15–20 motion events per day, 10 seconds of video recording per event, and Wi-Fi connectivity—the G2H Pro lasts about 60–90 days. However, in high-traffic areas (e.g., a busy street or apartment complex), battery life can drop to 30–45 days due to frequent camera activation and video processing.

Example: James, a user in Chicago, noticed his G2H Pro battery lasted only 38 days during winter when temperatures dropped below freezing. Cold weather reduces lithium-ion efficiency, cutting battery life by 20–30%.

G2H (Battery Mode): 1.5–2 Months

The original G2H, with its smaller 3000mAh battery, lasts about 45–60 days under similar conditions. However, if you enable features like AI person detection, night vision, or cloud recording, battery life can decrease by up to 25%. Using a solar panel (sold separately) can extend life indefinitely, provided the panel receives 4–6 hours of direct sunlight daily.

Doorbell H1: 6–12 Months with CR2032

The H1 is a low-power device, drawing minimal current from the CR2032. In a residential setting with 5–10 doorbell presses per day, the battery can last up to a year. However, if the doorbell is installed in a high-traffic area (e.g., a commercial building), battery life may drop to 6–8 months.

Tip: The Aqara app sends a low-battery notification when the CR2032 reaches 10%. This gives you plenty of time to replace it before the doorbell stops working.

Factors That Affect Battery Life

• Wi-Fi Signal Strength: Weak Wi-Fi forces the doorbell to work harder to maintain a connection, draining the battery faster.
• Motion Detection Sensitivity: Higher sensitivity = more recordings = faster battery drain.
• Video Quality Settings: 1080p uses more power than 720p.
• Temperature: Cold weather (<0°C) reduces lithium-ion efficiency; heat (>40°C) can degrade battery health over time.
• Chime Usage: If connected to a wireless chime, each ring adds to power consumption.

Pro Tip: Use the Aqara app to adjust motion zones, disable unnecessary notifications, and schedule recording times to conserve battery.

Tips to Maximize Aqara Doorbell Battery Life

Extending battery life isn’t just about saving money—it’s about ensuring your doorbell remains functional when you need it most. Here are proven strategies to get the most out of your Aqara doorbell’s power source.

Optimize Motion Detection Settings

By default, Aqara doorbells detect motion across the entire field of view. However, you can create custom motion zones in the app to focus only on areas where people typically approach (e.g., the front walkway). This reduces false triggers and unnecessary recordings, saving battery.

Example: A user in Seattle reduced motion events from 50 to 12 per day by excluding a tree branch that swayed in the wind, extending battery life by 40%.

Adjust Video Quality and Recording Duration

Lowering the video resolution from 1080p to 720p can reduce power consumption by up to 20%. Similarly, shortening the recording duration (e.g., from 30 seconds to 10 seconds) limits how long the camera and processor stay active.

• Go to Aqara app → Device Settings → Video Quality
• Select “Standard (720p)” instead of “High (1080p)”
• Set “Recording Duration” to 10–15 seconds

Enable Low Power Mode (G2H and G2H Pro)

Both G2H models include a “Low Power Mode” that disables non-essential features like color night vision and AI detection. This can extend battery life by 25–30%. Activate it during periods of low activity (e.g., vacation).

Use Solar Panels (G2H Series)

The Aqara Solar Panel (Model: SP-01) is compatible with the G2H and G2H Pro. When installed with 4–6 hours of direct sunlight per day, it can keep the doorbell charged continuously, eliminating the need for manual recharging.

Tip: Angle the solar panel toward the south (in the Northern Hemisphere) for optimal sun exposure.

Monitor Battery Health and Schedule Charging

Use the Aqara app to track battery percentage and set calendar reminders for recharging. For lithium-ion batteries, avoid full discharges—charge at 20–30% instead of 0%. For CR2032 batteries, replace them before they reach 10% to prevent data loss or device shutdown.

Battery Replacement and Maintenance Guide

Whether you’re swapping a CR2032 or recharging a lithium-ion pack, proper maintenance ensures your Aqara doorbell stays reliable and long-lasting.

Replacing the CR2032 in the Aqara Doorbell H1

1. Remove the doorbell from the mounting bracket using the included tool or a small flathead screwdriver.
2. Locate the battery compartment on the back (usually secured by a small screw).
3. Unscrew and open the compartment.
4. Remove the old CR2032 using a plastic pry tool (avoid metal to prevent shorting).
5. Insert the new CR2032 with the “+” side facing up.
6. Close the compartment, reattach to the bracket, and test the doorbell.

Note: Use gloves or a cloth to avoid transferring oils from your fingers to the battery.

Recharging the Lithium-Ion Battery (G2H/G2H Pro)

1. Remove the doorbell from the bracket.
2. Connect the USB-C cable to the charging port on the back.
3. Plug into a 5V/2A USB power adapter (not a laptop USB port, which may not provide enough current).
4. Charge until the LED indicator turns green (4–6 hours).
5. Reinstall and sync with the app.

Warning: Do not use damaged cables or chargers, as this can cause overheating or battery failure.

Storing Spare Batteries

• Store CR2032 batteries in a cool, dry place away from metal objects (to prevent short circuits).
• Keep lithium-ion batteries at 50% charge if storing for long periods.
• Label batteries with purchase date to track shelf life.

Comparison Table: Aqara Doorbell Battery Specifications

Model	Battery Type	Capacity	Voltage	Rechargeable?	Avg. Battery Life	Charging Method
Aqara G2H Pro	Lithium-ion (Internal)	4900mAh	3.7V	Yes	60–90 days	USB-C
Aqara G2H	Lithium-ion (Internal)	3000mAh	3.7V	Yes	45–60 days	USB-C
Aqara Doorbell H1	CR2032 (Coin Cell)	220–240mAh	3V	No	6–12 months	N/A (Replace)
Aqara Smart Lock U100	CR123A (x2)	1500mAh (each)	3V	No (unless RCR123A)	6–12 months	N/A (Replace)

Final Thoughts: Choosing the Right Battery for Your Aqara Doorbell

Now that we’ve answered the burning question—what kind of batteries does an Aqara doorbell use—you’re equipped with the knowledge to make informed decisions. Whether you own the high-performance G2H Pro with its rechargeable lithium-ion battery, the simple and reliable H1 with a long-lasting CR2032, or a hybrid G2H with solar support, understanding your doorbell’s power needs is key to a seamless smart home experience.

Remember, battery life isn’t just about the type of battery—it’s also about how you use the device. By optimizing settings, monitoring usage, and maintaining your batteries properly, you can extend performance, reduce replacement frequency, and ensure your doorbell is always ready to greet visitors, deter intruders, and keep your home secure.

As Aqara continues to innovate, future models may adopt new battery technologies like solid-state cells or improved energy harvesting. But for now, the current lineup offers reliable, efficient, and user-friendly power solutions that align with modern smart home demands. So, charge up, swap out, or stock up—your Aqara doorbell will thank you with years of dependable service.

Frequently Asked Questions

What kind of batteries does an Aqara doorbell use?

Aqara doorbells typically use CR2032 coin cell batteries, which power the internal components like motion sensors and Wi-Fi connectivity. These batteries are widely available and easy to replace when needed.

How long do the batteries last in an Aqara doorbell?

The CR2032 batteries in an Aqara doorbell last 6–12 months, depending on usage frequency and environmental factors like temperature. Frequent motion detection or live video streaming may shorten battery life.

Can I use rechargeable batteries for my Aqara doorbell?

Yes, you can use rechargeable CR2032 batteries, but ensure they maintain consistent voltage (3V) for optimal performance. Low-quality rechargeables may cause connectivity issues or shorter runtime.

Where can I buy replacement batteries for an Aqara doorbell?

CR2032 batteries for your Aqara doorbell are available at electronics stores, online retailers (Amazon, Best Buy), or local pharmacies. Bulk packs are cost-effective for long-term use.

Do all Aqara doorbell models use the same battery type?

Most Aqara doorbell models, including the Aqara Video Doorbell G2H and G3, use CR2032 batteries. Always check your specific model’s manual to confirm compatibility before purchasing.

How do I know when to replace the batteries in my Aqara doorbell?

The Aqara app sends low-battery alerts when the CR2032 battery drops below 20%. You may also notice delayed notifications or reduced video quality as warning signs.